Knitting needles for warp knitting machines and a method for manufacturing 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 particularly to knitting needles for warp knitting machines and a manufacturing method of knitting needles by an amorphous alloy injection molding process.

Background Art

[0002] The knitting needles for warp knitting are one of the parts with a very large consumption in the warp knitting machine. The domestic market in China is huge. As the current manufacturing process of knitting needles for warp knitting, the whole steel plate is press-molded and blanked, the hook part at the tip is bent, the outer shape and the groove are roughly finished, heat treatment is performed, the outer shape and the groove are finished, the hub is polished, and plating is performed. Thus, the manufacturing cost is high, the efficiency is low, and since the tip of the latch needle is bent and formed, it greatly affects the strength of the tip of the latch needle and directly affects the service life of the latch needle. Therefore, there is an urgent need for a processing process that can not only meet the product requirements, but also improve the production efficiency, reduce the cost, and enhance the strength of the use area of the tip of the latch needle.

Summary of the Invention

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

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

[0005] The present invention is specifically characterized by further comprising a knitting needle for a warp knitting machine, which is manufactured by an amorphous alloy injection molding process and contains the following components 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.

[0006] A method for manufacturing knitting needles for warp knitting machines by an amorphous alloy injection molding process, characterized by comprising (1) material mixing, (2) injection molding, (3) sprue removal, (4) thickness processing, (5) groove cutting, (6) hub polishing, and (7) electroplating.

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

[0008] (1) The materials are mixed and smelted to form small lumps. Weigh out 61.8 parts by mass 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 1.2 parts of yttrium powder. Place the mixture in a smelting furnace and raise the temperature to 1000-1200°C. To prevent oxidation of the raw materials in the smelting furnace, the furnace is evacuated and oxygen is blocked by argon gas protection. After melting the mixture into a liquid state, it is injected into the mold opening of a mold specifically for manufacturing feed material. Cooling circulating water is placed on the mold so that the molten feed material cools rapidly into a solid mass once it enters the mold opening. Then, remove it and crush it into small lumps of raw material no larger than 20 mm.

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

[0010] (3) Remove the sprue. The injection blank of the warp knitting machine needle, to which the material rod is attached, is placed in a laser cutting positioning tool located on the workbench of the laser cutter. When the start button is pressed, the set program starts automatically, and the laser cutter emits a laser to cut the material rod on the warp knitting machine needle, leaving an extra 0.05 mm from the needle for the next processing. After cutting, a warp knitting machine needle blank is obtained. The warp knitting machine needle blanks are neatly set all at once on a grinding machine positioning tool. After fixing, they are ground to remove the excess sprue, preferably with a Z-axis feed amount of 0.01 mm per pass, and the sprue is ground until it is as flat as the edge of the product.

[0011] (4) Thickness processing. After removing the sprue, the knitting needle blank for the warp knitting machine is set on a grinding machine, and the two large surfaces of the knitting needle blank for the warp knitting machine are polished until they reach a uniform thickness.

[0012] (5) Perform groove cutting. Place the groove cutting and positioning tool on the platform of the scribe device. Set the warp knitting needle blank, whose thickness has been polished, into the groove cutting and positioning tool. When the scribe device is started, the blade of the scribe device rotates rapidly, and the head unit on which the blade is mounted moves along a predetermined trajectory, and the blade grinds the crochet hook blank along the moving trajectory, and when completed, a grooved crochet hook blank is obtained.

[0013] (6) Polish the hub. Place the grooved crochet hook blank into the hub polishing jig. Hold the hub polishing jig close to the wheel to be polished and polish the grooved crochet hook blank until the hub polishing is complete and you have obtained the crochet hook blank.

[0014] (7) Electroplating. After thoroughly cleaning the hub-polished crochet hook blank, it is placed on an electroplating jig and placed in a furnace to raise the temperature before surface treatment. After the processing time is complete, it is removed from the furnace, and a coating that significantly improves the wear resistance of the product is formed on the surface of the product, 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 raw material utilization rate is high, production costs are significantly reduced, and the manufactured crochet hook blanks have excellent fatigue strength, toughness, and strength, with a service life more than twice that of conventional products. The zirconium-based metals in amorphous alloys are usually zirconium, copper, nickel, and titanium. The performance of such amorphous alloys cannot meet the performance requirements of warp knitting needle products. Therefore, beryllium and yttrium have been added based on this. Beryllium can improve the toughness of crochet hook products, has a high fatigue limit, and high wear resistance. Yttrium powder can improve the strength, toughness, and wear resistance of the crochet hook blanks. In the present invention, after countless experiments, the compounding components are scientifically selected, taking into account performance and cost, and a crochet hook blank with high toughness and wear resistance is obtained by a metallurgical process corresponding to amorphous alloys. (1) The performance requirements fully conform to the data for the knitting needle hook breaking angle test, knitting needle core breaking angle test, breaking strength test, and tensile strength test in the National Textile Industry Standard FZ / T97018-1999. (2) The production process is simple, significantly reducing labor and labor intensity, and facilitating automation and large-scale production. [Brief explanation of the drawing]

[0016] [Figure 1] This is a schematic diagram of the area of ​​a knitting needle for a warp knitting machine that is prone to wear and breakage during operation. [Figure 2] This is a plan view of Figure 1. [Figure 3] This is a schematic diagram of the structure of an elasticity testing tool. [Figure 4] This is a schematic diagram of the force-receiving part of a knitting needle for a warp knitting machine in an elasticity test. [Figure 5] This is a schematic diagram of a warp knitting needle when the iron block of the elasticity testing tool is not being pressed down. [Figure 6] This is a schematic diagram of a warp knitting needle in a state where an iron block used as an elasticity test tool is compressed. [Figure 7] This is an enlarged view of section A in Figure 4. [Figure 8] This is an enlarged view of section B in Figure 5. [Figure 9] This is an enlarged view of section C in Figure 6. [Modes for carrying out the invention]

[0017] In Example 1, the knitting needle for the warp knitting machine contains 61.8 parts by weight 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 yttrium powder, and 1.2 parts of yttrium powder, and is manufactured by an amorphous alloy injection molding process. The method for manufacturing the knitting needle for the 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 to form small lumps. Weigh out 61.8 parts by mass 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 1.2 parts of yttrium powder. Place the mixture in a smelting furnace and raise the temperature to 1000-1200°C. To prevent oxidation of the raw materials in the smelting furnace, the furnace is evacuated and oxygen is blocked by argon gas protection. After melting the mixture into a liquid state, it is injected into the mold opening of a mold specifically for manufacturing feed material. Cooling circulating water is placed on the mold so that the molten feed material cools rapidly into a solid mass once it enters the mold opening. Then, remove it and crush it into small lumps of raw material no larger than 20 mm.

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

[0020] (3) Remove the sprue. Set the injection blank of the knitting needle for warp knitting machine connected with the material rod into the positioning tool dedicated for laser cutting placed on the workbench of the laser cutter. When pressing the start button, the set program will start automatically, and the laser cutter will emit laser to cut the material rod on the knitting needle for warp knitting machine. As for the cutting position, 0.05 mm of extra material is left for the next processing. Set the cut knitting needle blank for warp knitting machine neatly on the positioning tool dedicated for grinding machine. After fixing, grind to remove the extra sprue. It is preferable that the feed amount of the Z-axis is 0.01 mm each time, and grind until the sprue becomes flat like the edge part of the product.

[0021] (4) Perform thickness processing. Set the knitting needle blank for warp knitting machine after removing the sprue on the grinding machine, and grind the two large surfaces of the knitting needle blank for warp knitting machine until they reach a certain thickness.

[0022] (5) Perform groove cutting. Place the groove cutting and positioning tool on the platform of the scribing device. Set the knitting needle blank for warp knitting machine after thickness grinding into the groove cutting and positioning tool. When starting the scribing device, the blade of the scribing device will rotate rapidly, and the head part equipped with the blade will move along a predetermined trajectory. The blade will perform grinding processing on the key needle blank along the moving trajectory. After completion, a grooved key needle blank can be obtained.

[0023] (6) Polish the hub. Set the grooved key needle blank into the fixture for hub polishing. Hold the fixture for hub polishing and approach it to the hub polishing wheel, and perform hub polishing on the grooved key needle blank until the hub polishing is completed and a key needle blank is obtained.

[0024] (7) Perform electroplating. After cleaning the hub polished key needle blank neatly, set it on the fixture for electroplating, put it into the furnace, raise the temperature, and then perform surface treatment. After the treatment time is over, take it out of the furnace. A film that can greatly improve the wear resistance of the product is formed on the surface of the product, and the electroplating is completed.

[0025] With advancements in science and technology, conventional industry standards can no longer meet the performance evaluation requirements for conventional warp knitting needles. Based on this, a new elasticity testing tool for warp knitting needles has been added to comprehensively test the performance of warp knitting needles, including elasticity, fatigue, and deformation. This needle elasticity testing tool simulates the usage conditions of warp knitting needles, allowing for further testing of their elasticity, fatigue, and deformation, and accurately testing the different effects on the performance of warp knitting needles manufactured with different feed ratios. As shown in Figure 3, the knitting needle elasticity testing tool includes a base plate 1, the knitting needles for the warp knitting machine are fixed to the base plate 1 by screws 6 and presser blocks 4, a cylinder 7 is provided above the needle core 2 of the warp knitting machine needles, a fixing block 11 is provided on the connecting rod 5 of the cylinder 7, and an iron block 3 is provided at the bottom of the fixing block 11, and as shown in Figures 4-9, the iron block 3 repeatedly performs short-distance pressing actions against the force receiving part 14 on the needle core 2 of the tip of the knitting needle by the reciprocating movement of the cylinder 7 until the tip of the crochet hook breaks, and the elasticity testing tool is equipped with a control unit with a counter, which controls the intake and exhaust of the cylinder to complete the up and down movement of the cylinder, and the counter plays the role of recording the number of elasticity tests. The iron block 3 and the base plate 1 are each provided with wires connected to the control unit, and the circuits of the iron block 3 and the base plate 1 are separated by an insulating block 9. Both the product and the tool are metal products and possess electrical conductivity. Therefore, the moment the iron block 3 is pressed against the product, the circuit of the iron block 3 and the circuit on the base plate 1 are connected, and power is supplied. After the control unit recognizes this and confirms that it is valid, it issues a command, and the cylinder rises and then lowers to perform the next cyclic operation. If the tip of the knitting needle for the warp knitting machine breaks, the iron block 3 will no longer contact the product while being pressed by the action of the cylinder, and power will not be supplied to the circuit between the iron block 3 and the base plate 1. The control unit recognizes this as an open circuit, the cylinder and the elasticity testing tool stop operating, and a buzzer sounds. The counter count stops at the current number of presses. In this way, the results of the elasticity performance test of the finished warp knitting machine crochet hook are obtained. In the elasticity test, the contact and pressing position between the tool and the warp knitting needle is the force receiving part 14 as shown in Figure 4. The pressing frequency is 50 times / minute, and the pressing width is 0.1 mm as shown in Figure 9. The test results showed that the elasticity test was performed 18,756 times, which is 1.5 times that of conventional crochet 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 of the core to the bend angle as the fixed fulcrum, the upper part of the core is moved to swing around the fulcrum, and the swing angle becomes the toughness fracture angle of the 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 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 and the specific gravity is adjusted. In each example, only one of the elements of 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 times of 12,000, appropriate intervals 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. The description of the common points is omitted. In Example 2, beryllium and yttrium are not added, and the elastic test times 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 test, it fails in any 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.� 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. The description of the common points is omitted. The elastic test times 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 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 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 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 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 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 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 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 26 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 24.5 N, and the passing 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 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 25 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 24.8 N, and the passing 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, the knitting needles for warp knitting machines obtained when the mixing ratio of the copper element is in the range of 11 parts to 16 parts all have more than 12,000 elastic test times, fully meet the toughness test, breaking test, and tensile test in the 'National Textile Industry Standard FZ / T97018 - 1999', and meet 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 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 9236 times. The test data of the knitting needle hook breaking angle is 34°, 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 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 knitting needle hook breaking angle test and the knitting needle core breaking angle test 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 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 10547 times, and 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 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. The breaking strength test and the tensile strength test were not passed.

[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 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", it was concluded that if the copper element is ≤ 10 parts or ≥ 17 parts, it will have an adverse effect on the knitting needles 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 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 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 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 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 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 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 proportion 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 12,054 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 11,623 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 Example 18 to 19, the zirconium element is freely mixed, and by changing the proportion of the nickel element by 1 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 / 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.​​​​​​ 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 the warp knitting machine 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. [[ID=​​​​​​​​

[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 part of yttrium powder. 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 range is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 30°, and the qualified range is a > 30°. The test data of the breaking strength is 17 N / m2, and the qualified range is ≥ 24 N / m2. The test data of the tensile strength is 21.9 N, and the qualified range is ≥ 19.6 N. The knitting needle core breaking angle test and the breaking strength test are 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 part of yttrium powder. 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 range is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 28°, and the qualified range is a > 30°. The test data of the breaking strength is 29 N / m2, and the qualified range is ≥ 24 N / m2. The test data of the tensile strength is 23.8 N, and the qualified range is ≥ 19.6 N. The elasticity test is not qualified.

[0063] In Examples 26 to 27, the zirconium element is freely blended, and by changing the ratio of the titanium element by one unit at a time, the blending range of the iron element is verified and determined. 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', 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 elastic 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 / m°, and the qualified line is ≥24 N / m°. 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 elastic 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 by changing the ratio of the aluminum element by one unit each time, the blending range of the aluminum element is verified and determined. 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 of more than 12,000 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. 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. 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 part 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 12,257 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 test is 24 N / m2, and the qualified line is ≥24 N / m2. The test data of the tensile strength test 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 part 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 14,589 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 test is 25 N / m2, and the qualified line is ≥24 N / m2. The test data of the tensile strength test 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 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 16,645 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 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 16,447 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 blending 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 blending 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, meeting 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 of the knitting needle product for warp knitting machines is 10369 times. It did not pass the elastic test. The test data of the breaking angle of the knitting needle hook is 28°, and the passing line is 35° < a < 75°. The test data of the breaking angle of the knitting needle core is 24°, and the passing line is a > 30°. The test data of the breaking strength is 19 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 21.7 N, and the passing line is ≥ 19.6 N. It did not pass any of the tests of 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 beryllium powder is ≤ 0.5 part, it will 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 of the knitting needle product for warp knitting machines is 14136 times. As a result of the test, the elastic test data of the obtained knitting needles for warp knitting machines is lower than 16447 times of Example 38. The test data of the breaking angle of the knitting needle hook is 43°, 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 29 N / m2, and the passing line is ≥ 24 N / m2. The test data of the tensile strength is 26.5 N, and the passing line is ≥ 19.6 N. The test data of 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 of 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 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 27 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. [[ID=`1]]

[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 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 28 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.

[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. The description of the common points 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 the breaking strength test and the tensile strength test. Therefore, it was concluded that if the amount of yttrium powder is ≤ 0.2 parts, it will 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. The description of the common points 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 of 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 elasticity test times for the knitting needle product for the warp knitting machine is 10,988 times. Summarizing the elasticity test of the obtained knitting needle for the warp knitting machine and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook fracture angle is 36°, and the qualified line is 35° < a < 76°. The test data of the knitting needle core fracture angle is 31°, and the qualified line is a > 30°. The fracture strength test data is 23 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data 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 elasticity test and did not pass the fracture 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 elasticity test times for the knitting needle product for the warp knitting machine is 11,275 times. Summarizing the elasticity test of the obtained knitting needle for the warp knitting machine and the toughness test, fracture test, and tensile test in the "National Textile Industry Standard FZ / T97018-1999", the test data of the knitting needle hook fracture angle is 39°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core fracture angle is 36°, and the qualified line is a > 30°. The fracture strength test data is 24 N / m2, and the qualified line is ≥ 24 N / m2. The tensile strength test data 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 elasticity 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 experiment 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 passing line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 32°, and the passing line is a > 30°. The breaking strength test data is 25 N / m2, and the passing line is ≥ 24 N / m2. The tensile strength test data is 22.4 N, and the passing 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 the warp knitting machine is 11,825 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 F2 / T97018 - 1999", the test data of the knitting needle hook breaking angle is 35°, and the passing line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 31°, and the passing line is a > 30°. The test data of the breaking strength is 23 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. As a result of the test, the obtained knitting needle for the warp knitting machine failed the breaking 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 the warp knitting machine is 12,481 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 34°, and the passing line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 31°, and the passing line is a > 30°. The test data of the breaking strength is 25 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. As a result of the test, the obtained knitting needle for the warp knitting machine did not pass the knitting needle hook breaking angle test.

[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, breaking 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 set 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 needles for warp knitting machines is 13372 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 / T 97018 - 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 33°, and the qualified line is a > 30°. The breaking 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 breaking 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 and 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 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 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 mixed, and the performance data when combining yttrium powder with titanium powder at the optimal mixing ratio of 1.2 parts obtained through experiments, with the maximum and minimum values, are verified. 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 / 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 needle for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", 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 25 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength is 16.5 N, and the qualified line is ≥ 19.6 N. As a result of the test, the obtained knitting needle 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 needle for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", 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 33°, 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 20.9 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.

[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 needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", 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 needles 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 needles for warp knitting machines and the toughness test, breaking test, and tensile test in the "National Textile Industry Standard FZ / T 97018-1999", 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 needles for warp knitting machines failed in 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 the optimal blending ratio of 1.2 parts obtained by experiment with aluminum 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, breaking 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 aluminum powder is 0.5 part, 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 aluminum 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 aluminum 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 aluminum 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 aluminum powder is set to 1 to 7 parts.

[0100] <00003XX7>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 part 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 / T 97018-1999", 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. <XXX0329> 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 elasticity test times of the knitting needle product for warp knitting machines is 15,012 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 / T 97018-1999', the test data of the knitting needle hook breaking angle is 45°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core breaking angle is 39°, and the qualified line is a > 30°. The test data of the breaking strength test is 30 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test 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 elasticity test times of the knitting needle product for warp knitting machines is 14,065 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 / T 97018-1999', the test data of the knitting needle hook breaking angle is 42°, 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 test is 26 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test 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 warp knitting machines is 12,047 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 / T 97018-1999', 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 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 needles for warp knitting machines 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 warp knitting machines is 11,892 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 / T 97018-.....

[0105] In Examples 56 to 60, 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 beryllium powder at the maximum and minimum values is verified. Summarizing the elastic 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 / 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 elastic tests of the knitting needles for warp knitting machines is 16,178 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 knitting needle hook fracture angle is 43°, and the qualified line is 35° < a < 75°. The test data of the knitting needle core fracture angle is 36°, and the qualified line is a > 30°. The fracture 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, as well as 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 test is 24 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test 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, 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 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 test is 21 N / m2, and the qualified line is ≥ 24 N / m2. The test data of the tensile strength test 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 61-63, the zirconium element was freely blended, and the appropriate range of yttrium powder was tested by gradually increasing the proportion of yttrium powder. Combining the elasticity tests of the resulting warp knitting needles with the toughness, fracture, and tensile tests according to the "National Textile Industry Standard FZ / T97018-1999," the test results showed that when the yttrium powder ratio was 1.8 parts, the test data for the resulting warp knitting needles was satisfactory. When the yttrium powder ratio was 2 parts, the test data for the resulting warp knitting needles was satisfactory. However, when the yttrium powder ratio was 2.2 parts, the test data for the resulting warp knitting needles was unsatisfactory, indicating an adverse effect on the warp knitting needles. Therefore, the optimal range for the yttrium powder ratio is 0.3-2 parts.

[0110] According to the successful test results, the appropriate range for zirconium powder was determined to be 57.5 to 65.5 parts.

[0111] Commercially available knitting needles for warp knitting machines are purchased and subjected to approximately 8,000 to 12,000 elasticity tests using specialized testing tools. Products manufactured using amorphous alloy injection molding achieved a maximum elasticity test count of 18,756 cycles, 1.5 times that of conventional products. Furthermore, warp knitting needles manufactured using amorphous alloy injection molding are non-magnetic, better meeting the requirements for product use. After a 1,500-hour salt spray test, the warp knitting needles showed no surface corrosion, demonstrating extremely high corrosion resistance.

[0112] As described above, the warp knitting needles produced by the amorphous alloy process of the present invention have a scientific and rational raw material blending ratio, and the components harmonize and synergistically work together to produce products with superior fatigue strength, toughness, and strength, with a service life more than 1.5 times that of conventional elements. Furthermore, the manufacturing process is simplified, raw material utilization is high, the consistency of specifications and dimensions is high, labor and labor intensity are significantly reduced during production, it is easy to automate, overall costs are saved by 60% compared to conventional technology, it is suitable for large-scale production, and it provides a good facility foundation for the advancement of the textile field with complex patterns and high quality. [Explanation of Symbols]

[0113] 1 Bottom plate 2 Knitting needles for warp knitting machines 3 Iron mass 4. Pressing block 5 Connecting rods 6 screws 7 cylinders 8 Support 9. Insulating block 10 screws 11 Fixed Blocks 12 pins 13 Areas prone to fracture 14 Force-receiving section

Claims

1. A knitting needle for a warp knitting machine, formed from an amorphous alloy consisting of 59-64 parts by weight of zirconium, 12-15 parts of copper, 8-12 parts of nickel, 7-9 parts of titanium, 2-4 parts of aluminum, 2-5 parts of beryllium, and 0.5-1.5 parts of yttrium.

2. A knitting needle for a warp knitting machine according to claim 1, characterized in that it 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 a knitting needle for a warp knitting machine by an amorphous injection molding process, comprising the steps of: (1) mixing and smelting materials, then crushing them to form small lumps of raw material; (2) injection molding the small lumps of raw material to form a knitting needle blank for a warp knitting machine; (3) removing the sprue from the knitting needle blank for a warp knitting machine; (4) performing thickness processing on the knitting needle blank for a warp knitting machine from which the sprue has been removed; (5) cutting grooves into the thickened knitting needle blank for a warp knitting machine; (6) buffing the grooved knitting needle blank for a warp knitting machine; and (7) electroplating the buffed knitting needle blank for a warp knitting machine.

4. The method according to claim 3, characterized in that step (1) involves weighing out 61.8 parts by mass 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 1.2 parts of yttrium powder, placing them in a smelting furnace and raising the temperature to 1000 to 1200°C, evacuating the furnace to prevent oxidation of the raw materials and blocking oxygen with argon gas protection, melting the materials into a liquid state, injecting the melted feed material into the mold opening of a mold specifically for the production of feed material, placing cooling circulating water on the mold so that when the molten feed material enters the mold opening, it is rapidly cooled into a solid mass, and then removing it and crushing it into small raw material lumps of 20 mm or less.

5. The method according to claim 3, characterized in that step (2) is to place the small lumps of raw material, which have been crushed to 20 mm or less, into the storage chamber of the injection equipment, evacuate to 500 Pa or less, heat the raw material to 700°C or higher by high-frequency heating while under this vacuum or argon gas protection, melt all of the raw material, then automatically pour it into the pressurized injection chamber, and inject the molten body into the mold under pressure at a high speed and high pressure of 0.5 m / s or more to form it, the mold temperature being 180 to 220°C, and obtaining an injection blank for a knitting needle for a warp knitting machine to which a material rod is connected.

6. The method according to claim 3, wherein step (3) involves setting the knitting needle blank for the warp knitting machine, to which the material rod is attached, into a positioning tool specifically for laser cutting located on the workbench of the laser cutter, and pressing the start button, which automatically starts the set program, the laser cutter emits a laser to cut the material rod, leaving an extra 0.05 mm from the knitting needle for the next processing, obtaining the knitting needle blank for the warp knitting machine after cutting, setting the knitting needle blank for the warp knitting machine neatly in one piece onto a positioning tool specifically for grinding, fixing it in place and then grinding it to remove the excess sprue, preferably with a Z-axis feed amount of 0.01 mm per pass, and grinding the sprue until it is flat like the edge of the product.

7. The method according to claim 3, characterized in that step (4) involves setting the warp knitting needle blank after the sprue has been removed on a grinding machine and grinding the two large surfaces of the warp knitting needle blank to a certain thickness.

8. The method according to claim 3, characterized in that step (5) is to place a groove-cutting and positioning tool on the platform of the scribe device, set the warp knitting needle blank having had its thickness polished into the groove-cutting and positioning tool, and when the scribe device is started, the blade of the scribe device rotates rapidly, the head portion on which the blade is mounted moves along a predetermined trajectory, and the blade grinds the warp knitting needle blank along the moving trajectory to obtain the warp knitting needle blank with grooves cut into it.

9. The method according to claim 3, characterized in that step (6) is to set the grooved warp knitting needle blank in a buffing jig, bring the buffing jig close to a buffing wheel, buff polish the grooved warp knitting needle blank, and obtain the buffed warp knitting needle blank.

10. The method according to claim 3, characterized in that step (7) involves thoroughly cleaning the buffed knitting needle blank for the warp knitting machine, setting it on an electroplating jig, placing it in a plating tank to raise the temperature, performing surface treatment, removing it from the plating tank after the processing time is complete, and having a coating formed on the surface of the product that can significantly improve the wear resistance of the product, thus completing the electroplating.

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