Knitting needles for warp knitting machines and manufacturing method of knitting needles by amorphous alloy injection molding process

Abstract

This warp knitting needle is manufactured by an amorphous alloy injection molding process, containing 57.5-65.5 parts by weight of zirconium, 11-16 parts by weight of copper, 7-13 parts by weight of nickel, 5-10 parts by weight of titanium, 1-7 parts by weight of aluminum, 1-7 parts by weight of beryllium, and 0.3-2 parts by weight of yttrium. The method for manufacturing this warp knitting needle by the amorphous alloy injection molding process includes the following steps: (1) mixing and smelting the materials, followed by forming small pieces, (2) injection molding, (3) removing the gate, (4) thickness processing, (5) groove cutting, (6) hub polishing, and (7) electroplating. Beryllium and yttrium are added to the zirconium-based metal in the amorphous alloy. Beryllium can improve the toughness of the crochet hook, resulting in a high fatigue limit and high wear resistance. Yttrium powder can improve the strength, toughness and wear resistance of the crochet hook blank.

Description

[Technical Field]

[0001] The present invention relates to the technical field of amorphous alloy injection molding, and more particularly to knitting needles for warp knitting machines and a method for manufacturing knitting needles by an amorphous alloy injection molding process. [Background technology]

[0002] Warp knitting needles are one of the components with the highest consumption in warp knitting machines. The domestic market for warp knitting needles in China is huge. The current manufacturing process for warp knitting needles involves stamping and blanking the entire steel plate, bending the hook at the tip, rough-finishing the outline and groove, heat treating, finishing the outline and groove, polishing the hub, and plating. This results in high manufacturing costs and low efficiency. Furthermore, the bending of the hook tip significantly impacts the strength of the hook tip, directly affecting its service life. Therefore, there is an urgent need for a processing method that not only meets product requirements but also further improves production efficiency, reduces costs, and increases the strength of the useful area of the hook tip. Summary of the Invention

[0003] The present invention provides a knitting needle for a warp knitting machine and a method for manufacturing the knitting needle by an amorphous alloy injection molding process, in order to solve the technical problems of conventional warp knitting needles, such as high manufacturing costs, low fatigue strength, and short service life.

[0004] The technical solution adopted by the present invention is as follows: A knitting needle for a warp knitting machine, characterized in that it contains, by weight, 57.5 to 65.5 parts zirconium, 11 to 16 parts copper, 7 to 13 parts nickel, 5 to 10 parts iron, 1 to 7 parts aluminum, 1 to 7 parts beryllium, and 0.3 to 2 parts yttrium, and is manufactured by an amorphous alloy injection molding process.

[0005] The present invention is specifically characterized in that it further comprises knitting needles for warp knitting machines, which contain, by weight, 61.8 parts zirconium powder, 13 parts copper powder, 10 parts nickel powder, 8 parts titanium powder, 3 parts aluminum powder, 3 parts beryllium powder, and 1.2 parts yttrium powder, and are manufactured by an amorphous alloy injection molding process.

[0006] This is a manufacturing method for knitting needles for warp knitting machines using an amorphous alloy injection molding process, which includes the following steps: (1) material mixing; (2) injection molding; (3) gate removal; (4) thickness processing; (5) groove cutting; (6) hub grinding; and (7) electroplating.

[0007] The method for manufacturing knitting needles for warp knitting machines by an amorphous alloy injection molding process includes the following steps (1) to (7).

[0008] (1) The materials are mixed and smelted, then formed into small lumps. 61.8 parts zirconium powder, 13 parts copper powder, 10 parts nickel powder, 8 parts titanium powder, 3 parts aluminum powder, 3 parts beryllium powder, and 1.2 parts yttrium powder are weighed out by mass. The materials are placed in a smelting furnace and the temperature is raised to 1000-1200°C. To prevent oxidation of the materials in the furnace, a vacuum is drawn and oxygen is blocked using argon gas. After being melted into a liquid, the material is injected into the mold cavity of a mold dedicated to the production of feedstock. Cooling water is circulated above the mold, so the molten feedstock is rapidly cooled into a solid lump upon entering the mold cavity. The material is then removed and crushed into small lump materials of 20 mm or less.

[0009] (2) Injection molding: Small chunks of raw material crushed to 20 mm or less are placed in the storage chamber of the injection machine, which is then evacuated to a pressure of 500 Pa or less. At this vacuum or under argon gas protection, the raw material is heated to 700°C or higher using high-frequency heating. After the raw material is completely melted, it is automatically poured into the pressurized injection chamber, and the molten material is pressurized and injected into a mold at a high speed and pressure of 0.5 m / s or more. The mold temperature is preferably 180 to 220°C, and an injection blank for a knitting needle for a warp knitting machine is obtained, to which a material rod is connected.

[0010] (3) Remove the gate. The warp knitting needle injection blank with the connected material rod is placed in a positioning tool specifically designed for laser cutting, located on the laser cutter's workbench. When the start button is pressed, the set program automatically begins, and the laser cutter emits a laser to cut the material rod on the warp knitting needle, leaving 0.05 mm of excess material from the needle at the cutting position for subsequent processing. After cutting, the warp knitting needle blank is obtained. The warp knitting needle blanks are then neatly set together on a positioning tool specifically designed for the grinding machine. After fixing, they are polished to remove the excess material from the gate. A Z-axis feed of 0.01 mm is ideal per operation, and the gate is polished until it is as flat as the edge of the product.

[0011] (4) Thickness processing: After removing the gate, the knitting needle blank for a warp knitting machine is set on a grinding machine, and the two large surfaces of the knitting needle blank for a warp knitting machine are ground to a uniform thickness.

[0012] (5) Grooving is performed. The groove cutting and positioning tool is placed on the platform of the scribing device. The knitting needle blank for the warp knitting machine, which has been subjected to thickness grinding, is set into the groove cutting and positioning tool. When the scribing device is started, the blade of the scribing device rotates rapidly, and the head unit carrying the blade moves along a predetermined trajectory. The blade grinds the crochet hook blank along the moving trajectory, and when completed, a grooved crochet hook blank is obtained.

[0013] (6) Sharpening the hub. Place the grooved crochet hook blank in the hub sharpening jig. Hold the hub sharpening jig close to the hub sharpening wheel and sharpen the grooved crochet hook blank until the hub sharpening is complete and the crochet hook blank is obtained.

[0014] (7) Electroplating. After the hub-ground crochet hook blank is thoroughly cleaned, it is placed on an electroplating jig and placed in a furnace to raise the temperature and then the surface is treated. After the treatment time is over, it is removed from the furnace and a coating that can greatly improve the wear resistance of the product is formed on the surface, completing the electroplating process.

[0015] The beneficial effects of the present invention are as follows: (1) By manufacturing crochet hooks using an amorphous alloy process, the present invention achieves high raw material utilization and significantly reduces production costs. The resulting crochet hook blanks have excellent fatigue strength, toughness, and strength, and a service life more than twice that of conventional products. The zirconium-based metals in amorphous alloys are typically zirconium, copper, nickel, and titanium. The performance of these amorphous alloys does not meet the performance requirements of warp knitting needles. Therefore, beryllium and yttrium are added based on this. Beryllium can improve the toughness of crochet hooks, resulting in a high fatigue limit and high wear resistance. Yttrium powder can improve the strength, toughness, and wear resistance of crochet hook blanks. Through numerous experiments, the present invention scientifically selects the ingredients while comprehensively considering performance and cost, and uses a metallurgical process appropriate for amorphous alloys to obtain crochet hook blanks with high toughness and wear resistance. The performance requirements are in full accordance with the test data for the knitting needle hook breaking angle, knitting needle core breaking angle, breaking strength test and tensile strength test in the "National Textile Industry Standard FZ / T97018-1999". (2) The production process is simple, which greatly reduces the labor and labor intensity, making it easy to automate and large-scale production. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic diagram of an area of a knitting needle for a warp knitting machine that is prone to wear and tear during operation. [Figure 2] FIG. 2 is a plan view of FIG. [Figure 3] FIG. 1 is a structural schematic diagram of an elasticity testing tool. [Figure 4] FIG. 10 is a schematic diagram of a force receiving portion of a knitting needle for a warp knitting machine in an elasticity test. [Figure 5] FIG. 1 is a schematic diagram of a warp knitting needle when the iron mass of the elasticity test tool is not pressed down. [Figure 6] FIG. 1 is a schematic diagram of a warp knitting needle with an iron block of an elasticity test tool pressed down. [Figure 7] FIG. 5 is an enlarged view of part A in FIG. [Figure 8] FIG. 6 is an enlarged view of part B in FIG. 5. [Figure 9] FIG. 7 is an enlarged view of part C in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] In Example 1, the knitting needle for a warp knitting machine contains, by weight, 61.8 parts zirconium powder, 13 parts copper powder, 10 parts nickel powder, 8 parts titanium powder, 3 parts aluminum powder, 3 parts titanium powder, and 1.2 parts yttrium powder, and is manufactured by an amorphous alloy injection molding process. The manufacturing method for the knitting needle for a warp knitting machine by the amorphous alloy injection molding process includes the following steps (1) to (7).

[0018] (1) The materials are mixed and smelted, then formed into small lumps. 61.8 parts zirconium powder, 13 parts copper powder, 10 parts nickel powder, 8 parts titanium powder, 3 parts aluminum powder, 3 parts beryllium powder, and 1.2 parts yttrium powder are weighed out by mass. The materials are placed in a smelting furnace and the temperature is raised to 1000-1200°C. To prevent oxidation of the materials in the furnace, a vacuum is drawn and oxygen is blocked using argon gas. After being melted into a liquid, the material is injected into the mold cavity of a mold dedicated to the production of feedstock. Cooling water is circulated above the mold, so the molten feedstock is rapidly cooled into a solid lump upon entering the mold cavity. The material is then removed and crushed into small lump materials of 20 mm or less.

[0019] (2) Injection molding: Small chunks of raw material crushed to 20 mm or less are placed in the storage chamber of the injection machine, which is then evacuated to a pressure of 500 Pa or less. At this vacuum or under argon gas protection, the raw material is heated to 700°C or higher using high-frequency heating. After the raw material is completely melted, it is automatically poured into the pressurized injection chamber, and the molten material is pressurized and injected into a mold at a high speed and pressure of 0.5 m / s or more to form a mold. The mold temperature is preferably 180 to 220°C, and an injection blank for knitting needles for warp knitting machines is obtained.

[0020] (3) Remove the gate. The warp knitting machine needle injection blank with the material rod connected is set in a positioning tool designed specifically for laser cutting, which is located on the laser cutter's workbench. When the start button is pressed, the set program automatically begins, and the laser cutter emits a laser to cut the material rod on the warp knitting machine needle, leaving an excess of 0.05 mm at the cutting position for the next processing. After cutting, the warp knitting machine needle blanks are neatly set together on a positioning tool designed specifically for the grinding machine. After fixing, they are polished to remove the excess from the gate. It is preferable that the Z-axis feed amount per time is 0.01 mm, and the gate is polished until it is as flat as the edge of the product.

[0021] (4) Thickness processing: After removing the gate, the knitting needle blank for a warp knitting machine is set on a grinding machine, and the two large surfaces of the knitting needle blank for a warp knitting machine are ground to a uniform thickness.

[0022] (5) Grooving is performed. The groove cutting and positioning tool is placed on the platform of the scribing device. The knitting needle blank for the warp knitting machine, which has been subjected to thickness grinding, is set into the groove cutting and positioning tool. When the scribing device is started, the blade of the scribing device rotates rapidly, and the head unit carrying the blade moves along a predetermined trajectory. The blade grinds the crochet hook blank along the moving trajectory, and when completed, a grooved crochet hook blank is obtained.

[0023] (6) Sharpening the hub. Place the grooved crochet hook blank in the hub sharpening jig. Hold the hub sharpening jig close to the hub sharpening wheel and sharpen the grooved crochet hook blank until the hub sharpening is complete and the crochet hook blank is obtained.

[0024] (7) Electroplating. After the hub-ground crochet hook blank is thoroughly cleaned, it is placed on an electroplating jig and placed in a furnace to raise the temperature and then the surface is treated. After the treatment time is over, it is removed from the furnace and a coating that can greatly improve the wear resistance of the product is formed on the surface, completing the electroplating process.

[0025] With the development of science and technology level, the traditional industry standards can no longer meet the traditional performance evaluation of knitting needles for warp knitting machines, and based on this, a warp knitting needle elasticity test tool has been added to comprehensively test the elasticity, fatigue, deformation and other performance of knitting needles for warp knitting machines. The knitting needle elasticity test tool simulates the usage conditions of knitting needles for warp knitting machines, thereby further testing the elasticity, fatigue and deformation of knitting needles for warp knitting machines, and can accurately test the different effects of different feed material composition on the performance of manufactured knitting needles for warp knitting machines. As shown in Figure 3, the knitting needle elasticity testing tool includes a base plate 1, a warp knitting needle secured to the base plate 1 by a screw 6 and a presser block 4, a cylinder 7 mounted above the needle core 2 of the warp knitting needle, a fixed block 11 mounted on the connecting rod 5 of the cylinder 7, and an iron block 3 mounted at the bottom of the fixed block 11. The iron block 3 repeatedly depresses a short distance against a force-receiving portion 14 on the needle core 2 at the tip of the knitting needle by reciprocating the cylinder 7, as shown in Figures 4-9, until the tip of the needle breaks. The elasticity testing tool is equipped with a control unit with a counter, which controls the intake and exhaust of air into the cylinder to complete the cylinder's up and down movement, and the counter records the number of elasticity tests. The iron block 3 and the base plate 1 are each equipped with electrical wires connected to the control unit, and an insulating block 9 separates the circuits between the iron block 3 and the base plate 1. Because both the product and the tool are metallic and electrically conductive, the moment iron block 3 is pressed onto the product, the circuitry of iron block 3 connects with the circuitry on base plate 1, providing electrical conductivity. The control unit then identifies and confirms the connection, issuing a command, causing the cylinder to rise and then fall to begin the next cycle. If the tip of the warp knitting needle breaks, iron block 3 no longer contacts the product during the cylinder's pressing action, preventing electrical continuity between iron block 3 and base plate 1. The control unit then recognizes this as an open circuit, causing the cylinder and elasticity test tool to stop operating, and the buzzer to sound. The counter count remains at the current number of presses. Thus, the elasticity performance test results for the finished warp knitting machine crochet hook are obtained. During the elasticity test, the contact point between the tool and the warp knitting needle is at force-receiving point 14, as shown in Figure 4. The pressing frequency is 50 times per minute, and the pressing width is 0.1 mm, as shown in Figure 9. The test results showed that the elasticity test was carried out 18,756 times, which is 1.5 times that of conventional crochet hook products.

[0026] In addition, toughness tests, fracture tests, and tensile tests are carried out in accordance with the "National Textile Industry Standard FZ / T97018-1999". The test data of the knitting needle hook fracture angle is 49°, and the qualified range is 35° < a < 75°. The test data of the knitting needle core fracture angle is 36°, and the qualified range is a > 30°. The test data of the fracture strength is 31 N / m2, and the qualified range is ≥ 24 N / m2. The test data of the tensile strength is 26.5 N, and the qualified range is ≥ 19.6 N. As a result of the tests, the elasticity test, the knitting needle hook fracture angle, the knitting needle core fracture angle, the fracture strength test, and the tensile strength test all meet the product requirements.

[0027] In the knitting needle hook fracture angle test, as shown in Figure 4, with the knitting needle hook as the fixed fulcrum, the knitting needle body is moved to swing around the fulcrum, and the swing angle becomes the toughness fracture angle of the knitting needle hook, which is 35° < a < 75°.

[0028] In the knitting needle core fracture angle test, as shown in Figure 5, with the center from the end part of the needle core to the bend angle as the fixed fulcrum, the upper part of the needle core is moved to swing around the fulcrum, and the swing angle becomes the toughness fracture angle of the needle core, which is a > 30°.

[0029] In the fracture strength test, the knitting needle is set on the fracture strength tester, and the collision position is at the middle position of the latch needle. The collision direction is as shown in Figure 1. In this way, the fracture strength test data is obtained. The standard requirement is ≥ 24 N / m2.

[0030] In the tensile strength test, the knitting needle is set on the tension meter, the end part of the knitting needle is fixed, and the thread is passed through the hook at the tip. Subsequently, a tension test is carried out to obtain the test data. The standard requirement is ≥ 19.6 N.

[0031] In Examples 2 to 45, since the proportion of zirconium element is large, it is regarded as being freely blended for specific gravity adjustment. In each example, only one of the elements copper, nickel, titanium, aluminum, beryllium, and yttrium is changed, and the most reasonable range is tested so as to increase in one unit. And, based on the elastic test count of 12,000, appropriate ranges for each element are determined.

[0032] In Example 2, this example is different from Example 1 in terms of the raw material mixing ratio of 63 parts of zirconium powder, 12 parts of copper powder, 10 parts of nickel powder, 9 parts of titanium powder, 6 parts of aluminum powder, 0 part of beryllium powder, and 0 part of yttrium powder. Explanation of the common points is omitted. In Example 2, beryllium and yttrium are not added. The elastic test count of the knitting needle product for warp knitting machines is 5,616 times, and the passing line is 12,000 times. The test data of the breaking angle of the knitting needle hook is 27°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 22°, and the passing line is a > 30°. The test data of the breaking strength is 17 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 15.2 N, and the passing line is ≥ 19.6 N. As a result of the tests, it fails in all of the elastic test, the breaking angle of the knitting needle hook, the breaking angle of the knitting needle core, the breaking strength test, and the tensile strength test, and cannot meet the product requirements.

[0033] In Example 3, this example is different from Example 1 in terms of the raw material mixing ratio of 62.5 parts of zirconium powder, 11 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. Explanation of the common points is omitted. The elastic test count of the knitting needle product for warp knitting machines is 12,230 times. The test data of the breaking angle of the knitting needle hook is 36°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 32°, and the passing line is a > 30°. The test data of the breaking strength is 28 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 23.3 N, and the passing line is ≥ 19.6 N.

[0034] In Example 4, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 12 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 13,986 times. The test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the qualified line is a > 30°. The test data of the breaking strength is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 23.1 N, and the qualified line is ≥ 19.6 N.

[0035] In Example 5, this example is different from Example 1 in terms of the raw material mixing ratio of 60.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 14,364 times. The test data of the breaking angle of the knitting needle hook is 40°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 36°, and the qualified line is a > 30°. The test data of the breaking strength is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.2 N, and the qualified line is ≥ 19.6 N.

[0036] In Example 6, this example is different from Example 1 in terms of the raw material mixing ratio of 59.5 parts of zirconium powder, 14 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 14,659 times. The test data of the breaking angle of the knitting needle hook is 38°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the qualified line is a > 30°. The test data of the breaking strength is 28 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.7 N, and the qualified line is ≥ 19.6 N.

[0037] In Example 7, this example is different from Example 1 in terms of the raw material mixing ratio of 58.5 parts of zirconium powder, 15 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 13,653 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the qualified line is a > 30°. The test data of the breaking strength is 26 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.5 N, and the qualified line is ≥ 19.6 N.

[0038] In Example 8, this example is different from Example 1 in terms of the raw material mixing ratio of 57.5 parts of zirconium powder, 16 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12,332 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the qualified line is a > 30°. The test data of the breaking strength is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.8 N, and the qualified line is ≥ 19.6 N.

[0039] In Examples 3 to 8, the zirconium element is freely mixed, and by changing the ratio of the copper element by 1 unit each time, the mixing range of the copper element is verified and determined. As a result of the test, when the mixing ratio of the copper element is in the range of 11 parts to 16 parts, the knitting needles for warp knitting machines obtained all have more than 12,000 elastic test times, fully meeting the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T97018 - 1999' and meeting the quality requirements of the knitting needles for warp knitting machines.

[0040] In Example 9, this example is different from Example 1 in terms of the raw material mixing ratio of 64.5 parts of zirconium powder, 9 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 9236 times. The test data of the breaking angle of the knitting needle hook is 34°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 30°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 22.6 N, and the qualified line is ≥ 19.6 N. The tests of the breaking angle of the knitting needle hook and the breaking angle of the knitting needle core were not qualified.

[0041] In Example 10, this example is different from Example 1 in terms of the raw material mixing ratio of 63.5 parts of zirconium powder, 10 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 10547 times, and the test data of the breaking angle of the knitting needle hook is 35°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 23.6 N, and the qualified line is ≥ 19.6 N. The elastic test was not qualified.

[0042] In Example 11, this example is different from Example 1 in terms of the raw material mixing ratio of 56.5 parts of zirconium powder, 17 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 10,863 times. The test data of the breaking angle of the knitting needle hook is 38°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 35°, and the qualified line is a > 30°. The test data of the breaking strength is 22 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 19.1 N, and the qualified line is ≥ 19.6 N. It did not pass the breaking strength test and the tensile strength test.

[0043] In Examples 9 to 11, the zirconium element is freely mixed, and by changing the ratio of the copper element by one unit each time, the mixing range of the copper element is verified and determined. Summarizing the elastic test of the knitting needle for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018 - 1999', it was concluded that if the copper element is ≤ 10 parts or ≥ 17 parts, it will have an adverse effect on the knitting needle for warp knitting machines.

[0044] In Example 12, this example is different from Example 1 in terms of the raw material mixing ratio of 62.5 parts of zirconium powder, 13 parts of copper powder, 8 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 13,332 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 32°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 20.2 N, and the qualified line is ≥ 19.6 N.

[0045] In Example 13, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 13 parts of copper powder, 9 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 14,697 times. The test data of the breaking angle of the knitting needle hook is 39°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the qualified line is a > 30°. The test data of the breaking strength is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 21.9 N, and the qualified line is ≥ 19.6 N.

[0046] In Example 14, this example is different from Example 1 in terms of the raw material mixing ratio of 60.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 15,341 times. The test data of the breaking angle of the knitting needle hook is 41°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 36°, and the qualified line is a > 30°. The test data of the breaking strength is 28 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.3 N, and the qualified line is ≥ 19.6 N.

[0047] In Example 15, this example is different from Example 1 in terms of the raw material mixing ratio of 59.5 parts of zirconium powder, 13 parts of copper powder, 11 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 12,996 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the qualified line is a > 30°. The test data of the breaking strength is 28 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.6 N, and the qualified line is ≥ 19.6 N.

[0048] In Example 16, this example is different from Example 1 in terms of the raw material mixing ratio of 58.5 parts of zirconium powder, 13 parts of copper powder, 12 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 14,476 times. The test data of the breaking angle of the knitting needle hook is 36°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the passing line is a > 30°. The test data of the breaking strength is 28 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 25.4 N, and the passing line is ≥ 19.6 N.

[0049] In Example 17, this example is different from Example 1 in terms of the raw material mixing ratio of 57.5 parts of zirconium powder, 13 parts of copper powder, 13 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 14,163 times. The test data of the breaking angle of the knitting needle hook is 36°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the passing line is a > 30°. The test data of the breaking strength is 27 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 25.6 N, and the passing line is ≥ 19.6 N.

[0050] In Examples 12 to 17, the zirconium element is freely mixed, and by changing the ratio of the nickel element by one unit each time, the mixing range of the nickel element is verified and determined. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018-1999', as a result of the test, when the mixing ratio of the nickel element is in the range of 8 parts to 13 parts, the knitting needles for warp knitting machines obtained all have more than 12,000 elastic test times and meet the quality requirements of the knitting needles for warp knitting machines.

[0051] In Example 18, this example is different from Example 1 in terms of the raw material mixing ratio of 63.5 parts of zirconium powder, 13 parts of copper powder, 7 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12054 times. The test data of the breaking angle of the knitting needle hook is 37°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the passing line is a > 30°. The test data of the breaking strength is 22 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 20.7 N, and the passing line is ≥ 19.6 N. It did not pass the breaking strength test.

[0052] In Example 19, this example is different from Example 1 in terms of the raw material mixing ratio of 56.5 parts of zirconium powder, 13 parts of copper powder, 14 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 11623 times. The test data of the breaking angle of the knitting needle hook is 35°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the passing line is a > 30°. The test data of the breaking strength is 28 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 26.8 N, and the passing line is ≥ 19.6 N. It did not pass the elastic test and the breaking angle test of the knitting needle hook.

[0053] From Examples 18 to 19, the zirconium element is freely blended, and by changing the proportion of the nickel element by 1 unit each time, the blending range of the nickel element is verified and determined. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T97018-1999', as a result of the test, it was concluded that if the nickel element is ≤ 7 parts or ≥ 14 parts, it will have an adverse effect on the knitting needles for warp knitting machines.

[0054] In Example 20, this example is different from Example 1 in terms of the raw material mixing ratio of 65.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 5 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12,695 times. The test data of the breaking angle of the knitting needle hook is 38°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the passing line is a > 30°. The test data of the breaking strength is 24 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 22.1 N, and the passing line is ≥ 19.6 N.

[0055] In Example 21, this example is different from Example 1 in terms of the raw material mixing ratio of 64.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 6 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 13,249 times. The test data of the breaking angle of the knitting needle hook is 39°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 32°, and the passing line is a > 30°. The test data of the breaking strength is 24 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 21.2 N, and the passing line is ≥ 19.6 N.

[0056] In Example 22, this example is different from Example 1 in terms of the raw material mixing ratio of 63.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 7 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 14,655 times. The test data of the breaking angle of the knitting needle hook is 41°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the passing line is a > 30°. The test data of the breaking strength is 26 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 21.2 N, and the passing line is ≥ 19.6 N.

[0057] In Example 23, this example is different from Example 1 in terms of the raw material mixing ratio of 62.6 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 16,276 times. The test data of the breaking angle of the knitting needle hook is 42°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 38°, and the qualified line is a > 30°. The test data of the breaking strength is 28 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24 N, and the qualified line is ≥ 19.6 N.

[0058] In Example 24, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 9 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 15,366 times. The test data of the breaking angle of the knitting needle hook is 38°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.6 N, and the qualified line is ≥ 19.6 N.

[0059] In Example 25, this example is different from Example 1 in terms of the raw material mixing ratio of 60.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 10 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 15,236 times. The test data of the breaking angle of the knitting needle hook is 39°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 33°, and the qualified line is a > 30°. The test data of the breaking strength is 29 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 24.8 N, and the qualified line is ≥ 19.6 N.

[0060] In Examples 20 to 25, the zirconium element is freely blended, and by changing the ratio of the titanium element by one unit each time, the blending range of the iron element is verified and determined. Summarizing the elasticity test of the knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", as a result of the tests, the knitting needles for warp knitting machines obtained when the blending ratio of the titanium element is in the range of 5 parts to 10 parts all have an elasticity test count exceeding 12,000, meeting the quality requirements of the knitting needles for warp knitting machines.

[0061] In Example 26, this example is different from Example 1 in terms of the raw material blending ratio of 66.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 4 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder, and the description of the common points is omitted. The elasticity test count of the knitting needle product for the warp knitting machine is 11,356 times, which is unqualified. The test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 30°, and the qualified line is a > 30°. The test data of the breaking strength test is 17 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 21.9 N, and the qualified line is ≥ 19.6 N. The knitting needle core breaking angle test and the breaking strength test were not qualified.

[0062] In Example 27, this example is different from Example 1 in terms of the raw material blending ratio of 59.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 11 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder, and the description of the common points is omitted. The elasticity test count of the knitting needle product for the warp knitting machine is 10,035 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 28°, and the qualified line is a > 30°. The test data of the breaking strength test is 29 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 23.8 N, and the qualified line is ≥ 19.6 N. It did not pass the elasticity test.

[0063] In Examples 26 to 27, the zirconium element is freely blended, and by changing the ratio of the titanium element by one unit each time, the blending range of the iron element is verified and determined. Summarizing the elasticity test of the knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018-1999', it was concluded that if the titanium element is ≤4 parts or ≥11 parts, it will have an adverse effect on the knitting needles for warp knitting machines in both cases.

[0064] In Example 28, this example is different from Example 1 in terms of the raw material mixing ratio of 64.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 1 part of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elasticity test times of the knitting needles for warp knitting machines is 12368 times. The test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the qualified line is a > 30°. The test data of the breaking strength test is 27 N / m², and the qualified line is ≥24 N / m². The test data of the tensile strength test is 20.3 N, and the qualified line is ≥19.6 N.

[0065] In Example 29, this example is different from Example 1 in terms of the raw material mixing ratio of 63.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 2 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elasticity test times of the knitting needles for warp knitting machines is 13657 times. The test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 35°, and the qualified line is a > 30°. The test data of the breaking strength test is 29 N / m², and the qualified line is ≥24 N / m². The test data of the tensile strength test is 20.2 N, and the qualified line is ≥19.6 N.

[0066] In Example 30, this example is different from Example 1 in terms of the raw material mixing ratio of 62.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 16,459 times. The test data of the breaking angle of the knitting needle hook is 42°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 38°, and the passing line is a > 30°. The test data of the breaking strength is 28 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 24.6 N, and the passing line is ≥ 19.6 N.

[0067] In Example 31, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 4 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 15,648 times. The test data of the breaking angle of the knitting needle hook is 41°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 39°, and the passing line is a > 30°. The test data of the breaking strength is 26 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 23.9 N, and the passing line is ≥ 19.6 N.

[0068] In Example 32, this example is different from Example 1 in terms of the raw material mixing ratio of 60.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 5 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12,633 times. The test data of the breaking angle of the knitting needle hook is 40°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the passing line is a > 30°. The test data of the breaking strength is 24 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 21.3 N, and the passing line is ≥ 19.6 N.

[0069] In Examples 28 to 32, the zirconium element is freely blended, and the blending range of the aluminum element is verified and determined by changing the ratio of the aluminum element by one unit at a time. Summarizing the elasticity test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", as a result of the tests, when the blending ratio of the aluminum element is in the range of 1 part to 5 parts, the knitting needles for warp knitting machines obtained have an elasticity test count exceeding 12,000 times each, meeting the quality requirements of the knitting needles for warp knitting machines.

[0070] In Example 33, this example is different from Example 1 in terms of the raw material blending ratio of 65 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 0.5 part of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder, and the description of the common points is omitted. The elasticity test count of the knitting needle product for the warp knitting machine is 8,360 times. The test data of the breaking angle of the knitting needle hook is 31°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 30°, and the qualified line is a > 30°. The test data of the breaking strength test is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 15.7 N, and the qualified line is ≥ 19.6 N. It did not pass any of the elasticity test, knitting needle hook breaking angle test, knitting needle core breaking angle test, and tensile strength test.

[0071] In Example 34, this example is different from Example 1 in terms of the raw material blending ratio of 59.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 6 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder, and the description of the common points is omitted. The elasticity test count of the knitting needle product for the warp knitting machine is 12,469 times. The test data of the breaking angle of the knitting needle hook is 38°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 32°, and the qualified line is a > 30°. The test data of the breaking strength test is 21 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 19 N, and the qualified line is ≥ 19.6 N. It did not pass the breaking strength test and the tensile strength test.

[0072] In Examples 33 to 34, the zirconium element is freely blended, and the blending range of the aluminum element is verified and determined by changing the ratio of the aluminum element by one unit at a time. Summarizing the elastic test of the knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", as a result of the tests, it was concluded that if the aluminum element is ≤ 0.5 parts or ≥ 6 parts, it will have an adverse effect on the knitting needles for warp knitting machines.

[0073] In Example 35, this example is different from Example 1 in terms of the raw material mixing ratio of 64.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 1 part of beryllium powder, and 0.5 parts of yttrium powder, and the description of the common points is omitted. The number of elastic test times of the knitting needles for warp knitting machines is 12257 times. The test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 22.3 N, and the qualified line is ≥ 19.6 N.

[0074] In Example 36, this example is different from Example 1 in terms of the raw material mixing ratio of 63.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 2 parts of beryllium powder, and 0.5 parts of yttrium powder, and the description of the common points is omitted. The number of elastic test times of the knitting needles for warp knitting machines is 14589 times. The test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 32°, and the qualified line is a > 30°. The test data of the breaking strength is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 23.5 N, and the qualified line is ≥ 19.6 N.

[0075] In Example 37, this example is different from Example 1 in terms of the raw material mixing ratio of 62.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 16,645 times. The test data of the breaking angle of the knitting needle hook is 42°, and the qualified line is 36° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the qualified line is a > 30°. The test data of the breaking strength is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 25.7 N, and the qualified line is ≥ 19.6 N.

[0076] In Example 38, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 4 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 16,447 times. The test data of the breaking angle of the knitting needle hook is 43°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the qualified line is a > 30°. The test data of the breaking strength is 26 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 25.1 N, and the qualified line is ≥ 19.6 N.

[0077] In Examples 35 to 38, the zirconium element is freely mixed, and by changing the proportion of beryllium powder by one unit each time, the range of the beryllium powder mixing component is verified and determined. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018-1999', as a result of the test, when the mixing ratio of beryllium powder is in the range of 1 part to 4 parts, the knitting needles for warp knitting machines obtained all have more than 12,000 elastic test times and meet the quality requirements of the knitting needles for warp knitting machines.

[0078] In Example 39, this example is different from Example 1 in terms of the raw material mixing ratio of 65 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 0.5 part of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for warp knitting machines is 10,369 times. It did not pass the elastic test. The test data for the breaking angle of the knitting needle hook is 28°, and the passing line is 35° < a < 75°. The test data for the breaking angle of the knitting needle core is 24°, and the passing line is a > 30°. The test data for the breaking strength is 19 N / m2, and the passing line is ≥ 24 N / m2. The test data for the tensile strength is 21.7 N, and the passing line is ≥ 19.6 N. It did not pass any of the tests for the breaking angle of the knitting needle hook, the breaking angle of the knitting needle core, and the breaking strength. Therefore, it was concluded that if the amount of beryllium powder is ≤ 0.5 part, it will all have an adverse effect on the knitting needles for warp knitting machines.

[0079] In Example 40, this example is different from Example 1 in terms of the raw material mixing ratio of 60.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 5 parts of beryllium powder, and 0.5 part of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for warp knitting machines is 14,136 times. As a result of the test, the elastic test data of the obtained knitting needles for warp knitting machines is lower than 16,447 times in Example 38. The test data for the breaking angle of the knitting needle hook is 43°, and the passing line is 35° < a < 75°. The test data for the breaking angle of the knitting needle core is 37°, and the passing line is a > 30°. The test data for the breaking strength is 29 N / m2, and the passing line is ≥ 24 N / m2. The test data for the tensile strength is 26.5 N, and the passing line is ≥ 19.6 N. The test data for the breaking angle of the knitting needle hook test, the breaking angle of the knitting needle core test, the breaking strength test, and the tensile strength test are close to those in Example 38. Since the cost of beryllium powder is higher than that of zirconium powder, considering economic efficiency, it was concluded that a mixing ratio of beryllium powder ≥ 5 parts is not suitable for the knitting needles for warp knitting machines.

[0080] In Example 41, this example is different from Example 1 in terms of the raw material mixing ratio of 62.7 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.3 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12,863 times. The test data of the breaking angle of the knitting needle hook is 38°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 34°, and the passing line is a > 30°. The test data of the breaking strength is 27 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 24.3 N, and the passing line is ≥ 19.6 N.

[0081] In Example 42, this example is different from Example 1 in terms of the raw material mixing ratio of 62.4 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.6 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 16,482 times. The test data of the breaking angle of the knitting needle hook is 42°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the passing line is a > 30°. The test data of the breaking strength is 28 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 24.2 N, and the passing line is ≥ 19.6 N.

[0082] In Examples 41 - 42 and Example 1, the zirconium element is freely mixed, and by changing the ratio of the yttrium element by 1 unit each time, the mixing range of the yttrium element is verified and determined. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T97018 - 1999', as a result of the test, when the mixing ratio of the yttrium element is in the range of 0.3 parts to 1.2 parts, the knitting needles for warp knitting machines obtained all have more than 12,000 elastic test times and meet the quality requirements of the knitting needles for warp knitting machines.

[0083] In Example 43, this example is different from Example 1 in terms of the raw material mixing ratio of 62.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 0.2 parts of yttrium powder. Regarding the common points, the description is omitted. Summarizing the elasticity test of the knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the number of elasticity test times of the knitting needle products for warp knitting machines is 12,253 times. The test data of the breaking angle of the knitting needle hook is 31°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 25°, and the qualified line is a > 30°. The test data of the breaking strength is 22 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 19.3 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines failed in the breaking strength test and the tensile strength test. Therefore, it was concluded that if the yttrium powder is ≤ 0.2 parts, it will all have an adverse effect on the knitting needles for warp knitting machines.

[0084] In Example 44, this example is different from Example 1 in terms of the raw material mixing ratio of 61.5 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.5 parts of yttrium powder. Regarding the common points, the description is omitted. The number of elasticity test times of the knitting needle products for warp knitting machines is 18,699 times. Summarizing the elasticity test of the obtained knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the breaking angle of the knitting needle hook is 48°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 37°, and the qualified line is a > 30°. The test data of the breaking strength is 27 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 27.5 N, and the qualified line is ≥ 19.6 N. As a result of the test, the number of elasticity test times of the obtained knitting needles for warp knitting machines, and the data of the knitting needle hook breaking angle test, knitting needle core breaking angle test, breaking strength test, and tensile strength test are close to those in Example 1.

[0085] On the implementation side 45, in this example, it is different from Example 1 in terms of the raw material mixing ratio of 64.8 parts of zirconium powder, 10 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for the warp knitting machine is 10,988 times. Summarizing the elastic test of the obtained knitting needle for the warp knitting machine, as well as the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook breaking angle is 36°, and the qualified line is 35° < a < 76°. The test data of the knitting needle core breaking angle is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 23 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 21.6 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for the warp knitting machine failed the elastic test and did not pass the breaking strength test.

[0086] In Example 46, in this example, it is different from Example 1 in terms of the raw material mixing ratio of 57.8 parts of zirconium powder, 17 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for the warp knitting machine is 11,275 times. Summarizing the elastic test of the obtained knitting needle for the warp knitting machine, as well as the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook breaking angle is 39°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 36°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 20.2 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for the warp knitting machine did not pass the elastic test.

[0087] In Examples 45 to 46, the zirconium element is freely blended, and the performance data when the yttrium powder is combined with the copper powder at the optimal blending ratio of 1.2 parts obtained by experiments for the maximum and minimum values is verified. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", as a result of the test, the knitting needles for warp knitting machines obtained when the blending ratio of copper powder is 10 parts and 17 parts both have unqualified test data, which has an adverse effect on the knitting needles for warp knitting machines. Accordingly, the optimal range of copper powder is defined as 11 to 16 parts.

[0088] In Example 47, this example is different from Example 1 in terms of the raw material blending ratio of 64.8 parts of zirconium powder, 13 parts of copper powder, 7 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder, and the description of the common points is omitted. The number of elastic tests of the knitting needles for warp knitting machines is 13154 times. Summarizing the elastic test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook breaking angle is 37°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 32°, and the qualified line is a > 30°. The test data of the breaking strength test is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 22.4 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0089] In Example 48, this example is different from Example 1 in terms of the raw material mixing ratio of 65.8 parts of zirconium powder, 13 parts of copper powder, 6 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 11,825 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard F2 / T97018-1999", the test data of the fracture angle of the knitting needle hook is 35°, and the qualified line is 35° < a < 75°. The test data of the fracture angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the fracture strength is 23 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 20.7 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines failed the fracture strength test and did not pass the elastic test.

[0090] In Example 49, this example is different from Example 1 in terms of the raw material mixing ratio of 57.8 parts of zirconium powder, 13 parts of copper powder, 14 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 12,481 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the fracture angle of the knitting needle hook is 34°, and the qualified line is 35° < a < 75°. The test data of the fracture angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the fracture strength is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 23.9 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines did not pass the fracture angle test of the knitting needle hook.

[0091] In Examples 47 to 49, the zirconium element is freely blended, and the performance data when combining yttrium powder at the optimal blending ratio of 1.2 parts obtained through experiments with nickel powder at the maximum and minimum values is verified. Summarizing the elasticity test of the knitting needles for warp knitting machines obtained and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", as a result of the test, when the blending ratio of nickel powder is 7 parts, the test data of the obtained knitting needles for warp knitting machines is qualified. When the blending ratio of nickel powder is 6 parts, the knitting needles for warp knitting machines obtained have unqualified test data. Furthermore, the knitting needles for warp knitting machines obtained with the nickel powder ratio increased to 14 parts also have unqualified test data, which has an adverse effect on the knitting needles for warp knitting machines. Thereby, the optimal range of nickel powder is defined as 7 to 13 parts.

[0092] In Example 50, this example is different from Example 1 in terms of the raw material blending ratio of 65.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 4 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder, and the description of the common points is omitted. The number of elasticity test times of the knitting needle product for warp knitting machines is 13372 times. Summarizing the elasticity test of the obtained knitting needles for warp knitting machines and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", the test data of the knitting needle hook fracture angle is 37°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core fracture angle is 33°, and the qualified line is a > 30°. The fracture strength test data is 21 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data is 22.1 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines did not pass the fracture strength test.

[0093] In Example 51, this example is different from Example 1 in terms of the raw material mixing ratio of 58.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 11 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic tests for the knitting needle products for warp knitting machines is 12,127 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines, as well as the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", the test data of the knitting needle hook breaking angle is 36°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 30°, and the qualified line is a > 30°. The breaking strength test data is 26 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data is 22.2 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines did not pass the knitting needle core breaking angle test.

[0094] In Examples 50 to 51, the zirconium element is freely blended, and the performance data when combining yttrium powder at the optimal mixing ratio of 1.2 parts obtained through experiments with titanium powder at the maximum and minimum values is verified. Summarizing the elastic test of the obtained knitting needles for warp knitting machines, as well as the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", as a result of the test, the knitting needles for warp knitting machines obtained when the mixing ratio of titanium powder is 4 parts and 11 parts both have unqualified test data, which has an adverse effect on the knitting needles for warp knitting machines.

[0095] In Example 52, this example is different from Example 1 in terms of the raw material mixing ratio of 64.3 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 0.5 part of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 9,574 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines, as well as the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018-1999', the test data of the knitting needle hook breaking angle is 35°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 31°, and the qualified line is a > 30°. The test data of the breaking strength test is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 16.5 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines did not pass any of the elastic test, knitting needle hook breaking angle test, and tensile strength test.

[0096] In Example 53, this example is different from Example 1 in terms of the raw material mixing ratio of 58.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 6 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 13,615 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines, as well as the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T 97018-1999', the test data of the knitting needle hook breaking angle is 36°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 33°, and the qualified line is a > 30°. The test data of the breaking strength test is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test is 20.9 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0097] In Example 54, this example is different from Example 1 in terms of the raw material mixing ratio of 57.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 7 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for warp knitting machines is 13,100 times. Summarizing the elastic test of the obtained knitting needle for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the breaking angle of the knitting needle hook is 36°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 19.7 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for warp knitting machines passed the performance test.

[0098] In Example 55, this example is different from Example 1 in terms of the raw material mixing ratio of 56.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 8 parts of aluminum powder, 3 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times for the knitting needle product for warp knitting machines is 11,581 times. Summarizing the elastic test of the obtained knitting needle for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the breaking angle of the knitting needle hook is 34°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 29°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 19 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for warp knitting machines failed all of the elastic test, the breaking angle test of the knitting needle hook, the breaking angle test of the knitting needle core, and the tensile strength test.

[0099] In Examples 52 to 55, the zirconium element is freely blended, and the performance data when combining yttrium powder at an optimal blending ratio of 1.2 parts obtained through experiments with aluminum powder at the maximum and minimum values are verified. Summarizing the elasticity test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018 - 1999", as a result of the test, when the blending ratio of aluminum powder is 0.5 parts, the test data of the obtained knitting needles for warp knitting machines are unqualified. As a result of the test, when the blending ratio of aluminum powder is 6 parts, the test data of the obtained knitting needles for warp knitting machines are qualified. As a result of the test, when the blending ratio of aluminum powder is 7 parts, the test data of the obtained knitting needles for warp knitting machines are qualified. As a result of the test, when the blending ratio of aluminum powder is 8 parts, the test data of the obtained knitting needles for warp knitting machines are unqualified and have an adverse effect on the knitting needles for warp knitting machines. Thereby, the optimal blending ratio range of aluminum powder is set to 1 to 7 parts.

[0100] In Example 56, this example is different from Example 1 in terms of the raw material blending ratio of 64.3 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 0.5 parts of beryllium powder, and 1.2 parts of yttrium powder, and the description of the common points is omitted. The number of elasticity test times of the knitting needles for warp knitting machines is 9248 times. Summarizing the elasticity test of the obtained knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018 - 1999", the test data of the knitting needle hook breaking angle is 25°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 22°, and the qualified line is a > 30°. The breaking strength test data is 16 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data is 18.7 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines did not pass any of the elasticity test, knitting needle hook breaking angle test, knitting needle core breaking angle test, breaking strength test, and tensile strength test.

[0101] In Example 67, this example is different from Example 1 in terms of the raw material mixing ratio of 59.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 5 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 15,012 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", the test data of the fracture angle of the knitting needle hook is 45°, and the qualified line is 35° < a < 75°. The test data of the fracture angle of the knitting needle core is 39°, and the qualified line is a > 30°. The test data of the fracture strength is 30 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 27.9 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0102] In Example 58, this example is different from Example 1 in terms of the raw material mixing ratio of 58.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 6 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for warp knitting machines is 14,065 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", the test data of the fracture angle of the knitting needle hook is 42°, and the qualified line is 35° < a < 75°. The test data of the fracture angle of the knitting needle core is 36°, and the qualified line is a > 30°. The test data of the fracture strength is 26 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 25.5 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0103] In Example 59, this example is different from Example 1 in terms of the raw material mixing ratio of 57.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 7 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 12047 times. Summarizing the elastic test of the obtained knitting needle for the warp knitting machine and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook breaking angle is 39°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 35°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 21.7 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for the warp knitting machine passed the performance test.

[0104] In Example 60, this example is different from Example 1 in terms of the raw material mixing ratio of 56.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 8 parts of beryllium powder, and 1.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic test times of the knitting needle product for the warp knitting machine is 11892 times. Summarizing the elastic test of the obtained knitting needle for the warp knitting machine and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook breaking angle is 37°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 30°, and the qualified line is a > 30°. The test data of the breaking strength is 23 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 20.3 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle for the warp knitting machine failed in all of the elastic test, the knitting needle core breaking angle test, and the breaking strength test.

[0105] In Examples 56 to 60, the zirconium element is freely blended, and the performance data when yttrium powder is combined with beryllium powder at the maximum and minimum values at the optimal blending ratio of 1.2 parts obtained by experiment is verified. Summarizing the elasticity test of the knitting needles for warp knitting machines obtained and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", as a result of the test, when the blending ratio of beryllium powder is 0.5 parts, the test data of the obtained knitting needles for warp knitting machines is unqualified. As a result of the test, when the blending ratio of beryllium powder is 5 parts, the test data of the obtained knitting needles for warp knitting machines is qualified. As a result of the test, when the blending ratio of beryllium powder is 6 parts, the test data of the obtained knitting needles for warp knitting machines is qualified. As a result of the test, when the blending ratio of beryllium powder is 7 parts, the test data of the obtained knitting needles for warp knitting machines is qualified. As a result of the test, when the blending ratio of beryllium powder is 8 parts, the test data of the obtained knitting needles for warp knitting machines is unqualified. It has an adverse effect on the knitting needles for warp knitting machines. Thereby, the optimal blending ratio range of beryllium powder is set to 1 to 7 parts.

[0106] In Example 61, this example is different from Example 1 in terms of the raw material blending ratio of 61.2 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 1.8 parts of yttrium powder. The description of the common points is omitted. The number of elasticity test times of the knitting needles for warp knitting machines is 16178 times. Summarizing the elasticity test of the obtained knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard F2 / T97018-1999", the test data of the knitting needle hook breaking angle is 43°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 36°, and the qualified line is a > 30°. The breaking strength test data is 25 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data is 22.9 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0107] In Example 62, this example is different from Example 1 in terms of the raw material mixing ratio of 61 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 2 parts of yttrium powder. The description of the common points is omitted. The number of elastic tests for the knitting needle products for warp knitting machines is 14,088 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard F2 / T97018 - 1999", the test data of the breaking angle of the knitting needle hook is 40°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 31°, and the qualified line is a > 30°. The test data of the breaking strength is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 22.7 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines passed the performance test.

[0108] In Example 63, this example is different from Example 1 in terms of the raw material mixing ratio of 60.8 parts of zirconium powder, 13 parts of copper powder, 10 parts of nickel powder, 8 parts of titanium powder, 3 parts of aluminum powder, 3 parts of beryllium powder, and 2.2 parts of yttrium powder. The description of the common points is omitted. The number of elastic tests for the knitting needle products for warp knitting machines is 11,267 times. Summarizing the elastic test of the obtained knitting needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T97018 - 1999", the test data of the breaking angle of the knitting needle hook is 37°, and the qualified line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 30°, and the qualified line is a > 30°. The test data of the breaking strength is 21 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 18.9 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needles for warp knitting machines failed all of the elastic test, the breaking angle test of the knitting needle core, the breaking strength test, and the tensile strength test.

[0109] In Examples 61 to 63, zirconium element was freely added, and the appropriate range of yttrium powder was tested by gradually increasing the proportion of yttrium powder. The resulting warp knitting needles were subjected to elasticity tests and toughness, breakage, and tensile tests in accordance with the National Textile Industry Standard FZ / T97018-1999. The test results showed that when the yttrium powder content was 1.8 parts, the test data for the resulting warp knitting needles passed. The test results also showed that when the yttrium powder content was 2 parts, the test data for the resulting warp knitting needles passed. The test results also showed that when the yttrium powder content was 2.2 parts, the test data for the resulting warp knitting needles failed, indicating adverse effects on the warp knitting needles. Therefore, the optimal range for the yttrium powder content was determined to be 0.3 to 2 parts.

[0110] According to examples that passed the test, the appropriate range of zirconium powder was summarized as 57.5 parts to 65.5 parts.

[0111] A commercially available warp knitting needle was purchased and tested using an elasticity testing tool with a maximum elasticity test count of 8,000 to 12,000 times. The product manufactured using an amorphous alloy injection molding method for warp knitting needles achieved a maximum elasticity test count of 18,756 times, 1.5 times that of conventional products. Furthermore, warp knitting needles manufactured using amorphous alloy injection molding are non-magnetic, allowing them to better meet the product's usage requirements. After a 1,500-hour salt spray test, the warp knitting needles showed no corrosion on their surfaces and exhibited excellent corrosion resistance.

[0112] As described above, the warp knitting needles made using the amorphous alloy process of the present invention have a scientific and reasonable raw material blending ratio, and the components are harmonious and synergistic with each other, resulting in products with excellent fatigue strength, toughness and strength, and a service life that is 1.5 times longer than that of conventional elements. In addition, the manufacturing process is simplified, the raw material utilization rate is high, the specification dimensions are highly consistent, the labor and labor intensity during production are greatly reduced, it is easy to automate, and the overall cost is reduced by 60% compared to conventional technology. It is suitable for large-scale production and provides a good foundation for the advancement of the field of complex and high-end textiles. [Explanation of symbols]

[0113] 1 Bottom plate 2 Knitting needles for warp knitting machines 3 Iron Lump 4 Presser block 5 Connecting rod 6 screws 7 cylinders 8 Support 9 Insulation Block 10 screws 11 Fixed Block 12-pin 13 Fracture prone areas 14 Force receiving part

Claims

1. A knitting needle for a warp knitting machine, characterized in that it contains, by weight, 57.5 to 65.5 parts of zirconium, 11 to 16 parts of copper, 7 to 13 parts of nickel, 5 to 10 parts of titanium, 1 to 7 parts of aluminum, 1 to 7 parts of beryllium, and 0.3 to 2 parts of yttrium, and is manufactured by an amorphous alloy injection molding process.

2. 2. The knitting needle for a warp knitting machine according to claim 1, characterized in that the knitting needle contains 61.8 parts zirconium powder, 13 parts copper powder, 10 parts nickel powder, 8 parts titanium powder, 3 parts aluminum powder, 3 parts beryllium powder, and 1.2 parts yttrium powder.

3. A method for manufacturing knitting needles for warp knitting machines using an amorphous injection molding process, comprising the steps of: (1) mixing and smelting materials and then forming them into small pieces; (2) injection molding; (3) removing the gate; (4) thickness processing; (5) groove cutting; (6) hub polishing; and (7) electroplating.

4. 4. The method for manufacturing knitting needles for warp knitting machines by an amorphous alloy injection molding process according to claim 3, wherein step (1) of mixing and smelting the materials to form small pieces comprises weighing 61.8 parts by mass of zirconium powder, 13 parts by mass of copper powder, 10 parts by mass of nickel powder, 8 parts by mass of titanium powder, 3 parts by mass of aluminum powder, 3 parts by mass of beryllium powder, and 1.2 parts by mass of yttrium powder, and charging the materials into a smelting furnace where the temperature is raised to 1000-1200°C. To prevent oxidation of the materials in the smelting furnace, the furnace is evacuated and protected with argon gas to block out oxygen. The materials are then melted into a liquid state, which is then injected into a mold cavity dedicated to producing feed material. Cooling water is placed on the mold so that the molten feed material is rapidly cooled into a solid mass upon entering the mold cavity, which is then removed and pounded into small pieces of raw material having a size of 20 mm or less.

5. 3. The method for manufacturing knitting needles for warp knitting machines by an amorphous alloy injection molding process according to claim 2, wherein the injection molding step (2) comprises placing small pieces of raw material crushed to 20 mm or less into a storage chamber of an injection machine, evacuating the chamber to 500 Pa or less, and then heating the raw material to 700°C or more by high-frequency heating under this vacuum or argon gas protection. After the raw material is completely melted, it is automatically poured into a pressurized injection chamber, and the molten material is pressurized and injected into a mold at a high speed and high pressure of 0.5 m / s or more, the mold temperature is preferably 180-220°C, and an injection blank for a knitting needle for a warp knitting machine connected to a material rod is obtained.

6. 10. The method for manufacturing a warp knitting needle by an amorphous alloy injection molding process according to claim 3, wherein the step (3) of removing the gate comprises: placing the injection blank for the warp knitting needle connected to the material rod in a positioning tool specially designed for laser cutting, which is placed on the workbench of the laser cutter; pressing the start button, which automatically starts the set program; the laser cutter emits a laser to cut the material rod on the warp knitting needle; leaving an excess of 0.05 mm from the knitting needle for the cutting position for subsequent processing; obtaining a warp knitting needle blank after cutting; and properly setting the warp knitting needle blank together on a positioning tool specially designed for a grinding machine; fixing and grinding the excess from the gate; preferably, a feed amount of 0.01 mm in the Z-axis per time; and grinding the gate until it is as flat as the edge of the product.

7. 4. The method for manufacturing a knitting needle for a warp knitting machine by an amorphous alloy injection molding process according to claim 3, wherein the thickness processing step (4) comprises setting the knitting needle blank for a warp knitting machine after removing the gate on a grinding machine and grinding the two large surfaces of the knitting needle blank for a warp knitting machine until they reach a uniform thickness.

8. 4. The method for manufacturing a knitting needle for a warp knitting machine by an amorphous alloy injection molding process according to claim 3, characterized in that in the groove cutting step (5), a groove cutting and positioning tool is placed on the platform of a scribing device, the knitting needle blank for a warp knitting machine that has been polished to a thickness is set in the groove cutting and positioning tool, and the scribing device is started, whereby the blade of the scribing device rotates rapidly and the head part carrying the blade moves along a predetermined trajectory, and the blade grinds the crochet needle blank along the moving trajectory, thereby obtaining a grooved crochet needle blank upon completion.

9. 4. The method for manufacturing knitting needles for warp knitting machines by an amorphous alloy injection molding process according to claim 3, characterized in that the hub grinding step (6) comprises setting the grooved crochet hook blank in a hub grinding jig, holding the hub grinding jig and bringing it close to a hub grinding wheel to grind the grooved crochet hook blank, and continuing this process until the hub grinding is completed and a crochet hook blank is obtained.

10. 4. The method for manufacturing knitting needles for warp knitting machines by amorphous alloy injection molding process according to claim 3, characterized in that in the electroplating step (7), the hub-ground crochet needle blank is cleaned and then set on an electroplating jig, which is then placed in a furnace to raise the temperature and perform surface treatment, and after the treatment time is over, the product is taken out of the furnace, and a coating which can greatly improve the wear resistance of the product is formed on the surface of the product, completing the electroplating.

Images