Die

Abstract

The embodiment of the utility model provides a mold, and relates to the technical field of molds. The mold comprises a central module, an upper mold plate, a middle mold plate, a first module and a second module, wherein the upper mold plate is provided with a smelting pool; a first containing cavity is formed in the upper mold plate and communicates with the smelting pool; the middle mold plate and the upper mold plate are connected and stacked; a second accommodating cavity is formed in the middle mold plate, and the second accommodating cavity is communicated with the first accommodating cavity; the first containing cavity and the second containing cavity are jointly used for containing a center module. A gap is formed between the central module and the inner wall of the first accommodating cavity; the first module and the second module are arranged at an interval around the central module and are positioned in the second accommodating cavity; the first module, the second module and the center module jointly define a product forming cavity. The die can effectively relieve the erosion phenomenon, and the service life of the die is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, specifically, relate to a mould. BACKGROUND

[0002] Mould is the tool or equipment for manufacturing articles, usually used to make raw materials (such as metal, plastic, rubber, etc.) by pressing, casting, injection etc. Forming, make the parts or products of specific shape and size. Mould is widely used in industrial production, is an indispensable part in batch production process. Mould occupies a vital position in modern industry, it provides efficient, accurate tool for mass production.

[0003] However, the current mould is prone to erosion phenomenon, thereby affecting the service life of the mould. INVENTION CONTENTS

[0004] The utility model provides a mould, it can effectively alleviate the erosion phenomenon, improve the service life of the mould.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The embodiment of the utility model provides a mould, it includes:

[0007] Center module;

[0008] Upper mould plate, the upper mould plate is provided with smelting pool;The upper mould plate is opened with first accommodating cavity, and the first accommodating cavity is communicated with the smelting pool;

[0009] Middle mould plate, the middle mould plate is connected with the upper mould plate, and is stacked;The middle mould plate is opened with second accommodating cavity, and the second accommodating cavity is communicated with the first accommodating cavity;The first accommodating cavity and the second accommodating cavity are used for placing the center module in common;There is a gap between the center module and the inner wall of the first accommodating cavity;

[0010] First module and second module, the first module and the second module are spaced apart and located in the second accommodating cavity around the center module;The first module, the second module and the center module jointly enclose and form product forming cavity.

[0011] In optional implementation, the shape of the center module is circular truncated cone, the center module 100 includes large end and small end, and the small end is close to the smelting pool.

[0012] In optional implementation, the large end side of the center module is further provided with boss, and the diameter of the boss is greater than the diameter of the large end.

[0013] In an optional embodiment, the upper die plate is provided with a first screw hole, the middle die plate is provided with a second screw hole, and the first screw hole and the second screw hole are arranged correspondingly; the first screw hole and the second screw hole are used for mounting a threaded fastener to connect the upper die plate and the middle die plate.

[0014] In an optional embodiment, the number of the first screw hole and the second screw hole is multiple, the multiple first screw holes and the multiple second screw holes are arranged correspondingly, and the multiple first screw holes are arranged at intervals.

[0015] In an optional embodiment, the die further comprises a lower die plate, the lower die plate is connected with the middle die plate, and the lower die plate and the middle die plate are arranged in layers.

[0016] In an optional embodiment, the lower die plate is provided with an air channel, and the air channel is used for connecting the second accommodating cavity with the outside.

[0017] In an optional embodiment, the lower die plate and the middle die plate are connected by threads.

[0018] In an optional embodiment, the lower die plate is made of magnesium alloy or aluminum alloy.

[0019] In an optional embodiment, the upper die plate is made of copper alloy, and / or the middle die plate is made of die steel.

[0020] The die has the following beneficial effects, for example:

[0021] The die comprises a center module, an upper die plate, a middle die plate, a first module and a second module, the upper die plate is provided with a smelting pool; the smelting pool is used for placing raw materials. The upper die plate is provided with a first accommodating cavity, and the first accommodating cavity is connected with the smelting pool; the middle die plate is connected with the upper die plate and arranged in layers; the middle die plate is provided with a second accommodating cavity, and the second accommodating cavity is connected with the first accommodating cavity; the first accommodating cavity and the second accommodating cavity are used for placing the center module together; there is a gap between the center module and the inner wall of the first accommodating cavity; the first module and the second module are arranged at intervals around the center module and located in the second accommodating cavity; the first module, the second module and the center module jointly enclose a product forming cavity. By arranging the center module and the gap between the center module and the inner wall of the first accommodating cavity, the raw materials flow from the smelting pool into the product forming cavity through the gap, the flow and the flow rate of the raw materials entering the product forming cavity can be slowed down, the purpose of buffering is achieved, and the erosion phenomenon of the raw materials to the product forming cavity of the die is effectively alleviated, so as to improve the service life of the die. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained without creative labor on the premise of the drawings.

[0023] Figure 1 The first view schematic diagram of the mold provided in the embodiments of the present application;

[0024] Figure 2 The second view schematic diagram of the mold provided in the embodiments of the present application;

[0025] Figure 3 The A-A section schematic diagram of the mold provided in the embodiments of the present application.

[0026] Icon: 1000-mold; 100-center module; 110-large end; 120-small end; 130-boss; 200-upper mold plate; 210-melting pool; 220-first accommodating cavity; 230-first threaded hole; 300-middle mold plate; 310-second accommodating cavity; 400-gap; 500-first module; 600-second module; 700-product forming cavity; 800-lower mold plate; 810-third accommodating cavity; 820-air channel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0029] It should be noted that: similar labels and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model.

[0031] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0033] A mold is a tool or device used to manufacture articles, usually used to shape raw materials (such as metal, plastic, rubber, etc.) by pressing, casting, injection, etc. into parts or products of specific shape and size. Molds are widely used in industrial production and are an indispensable part of the mass production process. Molds play a crucial role in modern industry, providing efficient and precise tools for mass production. However, the current mold is prone to erosion, which affects the service life of the mold.

[0034] Based on this, please refer to Figures 1-3 The mold 1000 provided in the embodiments of the utility model can effectively improve the above-mentioned technical problems. The mold 1000 can effectively alleviate the erosion phenomenon and improve the service life of the mold 1000. The mold 1000 can be applied to various product manufacturing devices and systems, and the manufacturing devices and systems with the mold 1000 all have the same functions described above, which are not limited here.

[0035] Figure 1 The first perspective view of the mold 1000 provided in the embodiments of the utility model is shown in the figure; Figure 2 The second perspective view of the mold 1000 provided in the embodiments of the utility model is shown in the figure; Figure 3 The mold 1000-A provided in the embodiments of the utility model is shown in the figure.

[0036] As Figure 1 , Figure 2 and Figure 3As shown, the mold 1000 in the embodiment includes a center module 100, an upper mold plate 200, a middle mold plate 300, a first module 500, and a second module 600. The upper mold plate 200 is provided with a smelting pool 210. The smelting pool 210 is used to place raw materials. The upper mold plate 200 is provided with a first accommodating cavity 220, which is in communication with the smelting pool 210. The middle mold plate 300 is connected with the upper mold plate 200 and is arranged in a stacked manner. The middle mold plate 300 is provided with a second accommodating cavity 310, which is in communication with the first accommodating cavity 220. The first accommodating cavity 220 and the second accommodating cavity 310 are used to place the center module 100 together. There is a gap 400 between the center module 100 and the inner wall of the first accommodating cavity 220. The first module 500 and the second module 600 are arranged in a spaced manner around the center module 100 and are located in the second accommodating cavity 310. The first module 500, the second module 600, and the center module 100 together enclose a product forming cavity 700. That is, the raw materials are placed in the smelting pool 210, flow through the first accommodating cavity 220 from the gap 400, and flow into the product forming cavity 700 to form a product blank. By arranging the center module 100 and the gap 400 between the center module 100 and the inner wall of the first accommodating cavity 220, the flow rate and flow velocity of the raw materials entering the product forming cavity 700 can be slowed down, achieving the purpose of buffering, thereby effectively alleviating the erosion of the raw materials to the product forming cavity 700 of the mold 1000, and improving the service life of the mold 1000.

[0037] To improve the buffering effect of the raw materials on the product forming cavity 700, please refer to Figure 3 The shape of the center module 100 in the embodiment is a circular truncated cone. The center module 100 includes a large end 110 and a small end 120. The small end 120 is close to the smelting pool 210. That is, the center module 100 has an inclined surface. The axis of the gap 400 formed by the center module 100 and the first accommodating cavity 220 is also inclined. The straight-line distance from the axis of the gap 400 to the central axis of the mold 1000 gradually increases in the direction from the upper mold plate 200 to the middle mold plate 300. The above design can further slow down the flow rate of the raw materials, alleviate the erosion of the raw materials to the product forming cavity 700 of the mold 1000, and further improve the service life of the mold 1000. Of course, the center module 100 can also be designed as a circular cone or other shapes with the above inclined surface, which is not limited here.

[0038] Please continue to refer to Figure 3The large end 110 of the center module 100 in the embodiment is further provided with a boss 130, and the diameter of the boss 130 is greater than that of the large end 110. In the embodiment, the boss 130 is located in the second accommodating cavity 310, and the surface formed by the connection of the boss 130 and the center module 100 is jointly enclosed by the inner walls of the first module 500 and the second module 600 to form a product forming cavity 700. That is, the center module 100 and the boss 130 are completely located in the upper die plate 200 and the middle die plate 300.

[0039] The above-mentioned "connection of the middle die plate 300 and the upper die plate 200" is specifically described as follows: Figure 3 In the embodiment, the upper die plate 200 and the middle die plate 300 are connected by threads. In the embodiment, the upper die plate 200 is provided with a first screw hole 230, and the middle die plate 300 is provided with a second screw hole, and the first screw hole 230 and the second screw hole are correspondingly arranged; the first screw hole 230 and the second screw hole are used to install a threaded fastener to connect the upper die plate 200 and the middle die plate 300. The threaded fastener herein can be a bolt, a screw, etc., which is not limited herein. In order to ensure the stability of the connection of the upper die plate 200 and the middle die plate 300, the number of the first screw hole 230 and the second screw hole in the embodiment is multiple, the multiple first screw holes 230 and the multiple second screw holes are one-to-one correspondingly arranged, and the multiple first screw holes 230 are arranged at intervals. Specifically, the number of the first screw hole 230 and the second screw hole in the embodiment is two, and the two first screw holes 230 are respectively located on the two sides of the upper die plate 200. Correspondingly, the two second screw holes are respectively located on the two sides of the middle die plate 300. The number of the first screw hole 230 and the second screw hole can also be three, four, five, etc., which is not limited herein. Of course, the upper die plate 200 and the middle die plate 300 can also be connected by welding, clamping and other connection methods, which is determined according to the actual processing conditions, which is not limited herein.

[0040] Please refer to Figure 3The mold 1000 in the embodiment also includes a lower mold plate 800, which is connected with the middle mold plate 300 and stacked. In order to reduce the defects such as pores and cracks of the product in the molding process of the mold 1000, the lower mold plate 800 in the embodiment is provided with an air passage 820, which is used for connecting the second accommodating cavity 310 and the outside. Because gas (such as air or water vapor) will be generated in the molding process of the mold 1000, if the gas in the mold 1000 cannot be effectively discharged, air bubbles may be formed on the surface of the molded product, or pores may be generated in the molded product, affecting the production quality of the molded product. By setting the air passage 820, the gas generated in the mold 1000 can be discharged from the mold 1000 in time, so as to prevent the product in the mold 1000 from forming defects such as pores, air bubbles and cracks. Moreover, inclusions may be generated when molten metal is mixed with gas, and these inclusions may be attached to the surface or inside of the casting. By setting the air passage 820, the gas can be effectively discharged, the inclusions generated by mixing the gas with the molten metal are avoided, and thus the overall quality of the molded product is improved. When the gas cannot be discharged in time during the casting process, the expansion of the gas may cause the casting to deform, especially in complex-shaped or thin-walled castings. By setting the air passage 820, the risk of deformation of the molded product is also reduced, and the product precision is ensured.

[0041] In addition, in the processing technology of suction casting, the air passage 820 can be used to be connected with a vacuum pump, so as to ensure that the vacuum degree in the mold 1000 meets the processing requirements.

[0042] Please refer to Figure 3 In order to expand the space of the product molding cavity 700, the lower mold plate 800 in the embodiment is provided with a third accommodating cavity 810, and the boss 130 is located in the third accommodating cavity 810, and the surface formed by the boss 130 and the center module 100 is flush with the surface of the middle mold plate 300 away from the upper mold plate 200.

[0043] The lower die plate 800 and the middle die plate 300 are connected by screwing. Specifically, the lower die plate 800 is provided with third screw holes corresponding to the second screw holes, and the second screw holes and the third screw holes are used to install threaded fasteners to connect the middle die plate 300 and the lower die plate 800. The threaded fasteners can be bolts, screws, etc., which are not limited here. In order to ensure the stability of the connection between the middle die plate 300 and the lower die plate 800, the number of the second screw holes and the third screw holes in the embodiment is multiple, and the multiple second screw holes and the multiple third screw holes are arranged one-to-one, and the multiple second screw holes are arranged at intervals. Specifically, the number of the second screw holes and the third screw holes in the embodiment is two, and the two second screw holes are respectively located on the two sides of the middle die plate 300, and correspondingly, the two third screw holes are respectively located on the two sides of the lower die plate 800. The number of the second screw holes and the third screw holes can also be three, four, five, etc., which are not limited here. Of course, the middle die plate 300 and the lower die plate 800 can also be connected by welding, clamping and other connection methods, which are determined according to the actual processing conditions and are not limited here. In addition, the positions of the multiple first screw holes 230, the multiple second screw holes and the multiple third screw holes can be arranged one-to-one.

[0044] According to the processing needs, the lower die plate 800 in the embodiment is made of magnesium alloy or aluminum alloy. The upper die plate 200 is made of copper alloy, and / or the middle die plate 300 is made of die 1000 steel. Of course, according to the actual processing needs, the upper die plate 200, the middle die plate 300 and the lower die plate 800 can also be made of one or more of plastic, titanium alloy, alloy steel, aluminum alloy, hardened tool steel, etc., which are not limited here.

[0045] The die 1000 including the upper die plate, the middle die plate and the lower die plate 800 in the embodiment can be used to prepare a titanium-based amorphous alloy structural part. The detailed description is as follows:

[0046] A preparation method of a titanium-based amorphous alloy structural part, the preparation method comprising the following steps:

[0047] According to Ti a Cu b Zr c Hf d Ni e Si f Sn gThe atomic percentage conversion of the mass percentage, the required raw materials Ti, Cu, Zr, Hf, Ni, Si and Sn are weighed, and the raw materials are mixed uniformly to obtain a mixed alloy, wherein a, b, c, d, e, f and g are atomic percentages, wherein the sum of a, b, c, d, e, f and g is 100; a, b, c, d, e, f and g satisfy: 30 < a < 50, 20 < b < 40, 2 < c < 10, 1 < d < 10, 1 < e < 10, 0 < f < 3, 0 < g < 6.

[0048] The obtained mixed alloy is added to the melting pool 210 with the mold 1000 to perform melting to obtain a master alloy ingot; the mold 1000 here is the mold 1000 mentioned above.

[0049] The melting conditions satisfy at least one of the following (1) or (2) features:

[0050] (1) The melting is performed under vacuum conditions;

[0051] (2) The melting is performed under the protection of an inert gas.

[0052] And the number of times of melting in this embodiment is not less than 4 times, which can be 4 times, 5 times, 6 times, 7 times or more, which is not limited here. Through multiple melting, the uniformity of the chemical composition of the master alloy ingot can be ensured, thereby ensuring the performance of the product. Of course, the number of times of melting can also be 1 time, 2 times, 3 times, etc., but in order to ensure the uniformity of the chemical composition of the master alloy ingot and thorough melting, multiple melting is required. Preferably, the number of times of melting is 4 times.

[0053] The melting time is generally greater than or equal to 20 minutes. The longer the melting time, the better the purity and quality of the obtained alloy. If the melting time is too short, there may still be some impurities in the alloy, affecting its quality and purity. However, if the melting time is too long, it will also lead to a decrease in the quality of the alloy. At very high temperatures, the alloy may undergo a chemical reaction, resulting in a decrease in quality. Preferably, the melting time is 30 to 45 minutes. Further preferably, the melting time is 30 minutes.

[0054] The master alloy ingot is prepared into a titanium-based amorphous alloy structural member by suction casting.

[0055] Specifically, the titanium-based amorphous alloy structural member is prepared by suction casting the master alloy ingot, which includes the following steps:

[0056] After melting, the suction casting is started, and after ensuring that the master alloy ingot is completely sucked into the forming cavity of the mold 1000, the suction casting is stopped;

[0057] The arc melting furnace suction casting equipment can quickly manufacture structural parts such as titanium-based amorphous alloy ornaments on the equipment, and the arc suction casting processing mode can form a high-brightness surface on the surface of the structural part, so as to reduce subsequent polishing of the product, simplify the processing process, save processing time, and improve processing efficiency.

[0058] After standing and cooling for 20-60 minutes, the argon protection is opened, and the mold 1000 is disassembled after the pressure in the equipment returns to normal, to obtain a titanium-based amorphous alloy structural part blank;

[0059] Preferably, the standing and cooling time is 30 minutes.

[0060] The blank is finished to obtain a titanium-based amorphous alloy structural part.

[0061] Here, the finishing refers to polishing at the parting line of the blank and polishing the surface.

[0062] In order to improve the surface brightness and reduce subsequent polishing of the product, the melting in this embodiment adopts arc melting.

[0063] Before melting, the following steps are further included:

[0064] The mixed alloy is placed in the arc furnace, and the vacuum degree of the arc furnace is adjusted to 3x10 -3 Pa or below;

[0065] The arc furnace is closed, and the equipment is ensured to be normal and sealed. The vacuum in the arc furnace is first pumped to 20 Pa or below by a mechanical pump, and then the vacuum in the furnace is further pumped to 3x10 -3 Pa or below by a molecular pump.

[0066] The arc furnace is filled with argon gas with a purity of 99.99%.

[0067] The argon gas is used to provide inert gas protection for the arc melting of the mother alloy ingot. Of course, as long as high-purity argon gas is filled into the arc furnace, the concentration of the argon gas can be greater than 99%, and the specific purity of the argon gas is not limited. In addition, in addition to filling argon gas, argon gas can be replaced by helium gas, krypton gas, and other gas inert gases, which are not limited.

[0068] The titanium-based amorphous alloy prepared by the above processing method, i.e., the titanium-based amorphous alloy prepared by the arc suction casting method, can form a high-brightness surface and reduce subsequent polishing of the product, so as to quickly realize the manufacturing of titanium-based amorphous alloy ornaments and save labor. Therefore, the titanium-based amorphous alloy can be used as a new option for wear-resistant high-brightness ornament materials.

[0069] Example 1

[0070] Ti 40 Cu 38.5 Zr3.5 Manufacture of Hf5Ni7Si2Sn4 titanium-based amorphous alloy ornament:

[0071] 1) Prepare the alloy raw materials according to the above mass percentage, and then add the alloy raw materials into the melting pool 210 of the assembled mold 1000;

[0072] 2) Close the chamber and ensure that the equipment is normal and the seal is normal; first use a mechanical pump to pump the vacuum in the furnace to below 20 Pa, then use a molecular pump to continue pumping the vacuum to below 3.0x10 -3 Pa, and then fill high-purity argon gas (purity 99.99%) after closing each valve to provide inert atmosphere protection for the following arc melting of the master alloy ingot;

[0073] 3) Melt the alloy raw materials in the melting pool 210, and electromagnetic stirring can be used during the melting process. Note that the melting time should not be too long each time to prevent the volatilization of some components in the alloy. The melting time in this embodiment is 30 minutes. In order to ensure the uniformity of the chemical composition of the master alloy ingot, after melting, each alloy ingot is turned over and re-melted with a turning spoon, and each alloy ingot is melted not less than four times. The more uniform the alloy melting, the more conducive to the subsequent preparation of amorphous alloy samples. Specifically, the number of melting times in this embodiment is 4 times;

[0074] 4) Turn on the suction casting function of the equipment to ensure that the titanium-based amorphous alloy raw material melt is completely sucked into the mold 1000 forming cavity, and turn off the suction casting function. After standing and cooling for 30 min, open the argon protection, and after the pressure in the arc furnace is normal, open the arc furnace chamber door and disassemble the mold 1000 device;

[0075] 5) Take out the product in the mold 1000 core, polish the parting line of the product, and polish the surface to complete the product processing.

[0076] Example 2

[0077] Ti 41.5 Cu 37.5 Zr 2.5 Hf5Ni 7.5 Si1Sn5 titanium-based amorphous alloy ornament:

[0078] 1) Prepare the alloy raw materials according to the above mass percentage, and then add the alloy raw materials into the melting pool 210 of the assembled mold 1000;

[0079] 2) Close the chamber and ensure that the equipment is normal and the seal is normal; first use a mechanical pump to pump the vacuum in the furnace to below 20 Pa, then use a molecular pump to continue pumping the vacuum to below 3.0x10 -3 Pa, and then fill high-purity argon gas (purity 99.99%) after closing each valve to provide inert atmosphere protection for the following arc melting of the master alloy ingot;

[0080] 3) melt the alloy raw materials in the melting pool 210, electromagnetic stirring can be used during the melting process, and the melting time is 30 minutes. After melting, each alloy ingot is turned over and re-melted with a turning spoon, and each alloy ingot is melted for not less than four times. Specifically, the number of melting times in this embodiment is 4 times;

[0081] 4) turn on the suction casting function of the device to ensure that the titanium-based amorphous alloy raw material melt is completely sucked into the forming cavity of the mold 1000, and turn off the suction casting function. After standing and cooling for 30 minutes, open the argon protection, wait for the pressure in the electric arc furnace to be normal, open the chamber door of the electric arc furnace, and disassemble the mold 1000 device;

[0082] 5) take out the product in the mold 1000 core, polish the parting line of the product, polish the surface, and complete the product processing.

[0083] Example 3

[0084] Ti 41 Cu 37 Zr3Hf4Ni8Si 1.5 Sn 5.5 Manufacture of titanium-based amorphous alloy jewelry:

[0085] 1) Prepare the alloy raw materials according to the above mass percentage, and then add the alloy raw materials into the melting pool 210 of the mold 1000 which has been assembled;

[0086] 2) Close the chamber to ensure that the device is normal and the seal is normal. First, use a mechanical pump to pump the vacuum in the furnace to below 20 Pa, then use a molecular pump to continue pumping the vacuum to 3.0 x 10 -3 Pa, and then close the valves and fill in high-purity argon (purity 99.99%) to provide inert atmosphere protection for the following arc melting of the master alloy ingot;

[0087] 3) melt the alloy raw materials in the melting pool 210, electromagnetic stirring can be used during the melting process, and the melting time is 30 minutes. After melting, each alloy ingot is turned over and re-melted with a turning spoon, and each alloy ingot is melted for not less than four times. Specifically, the number of melting times in this embodiment is 4 times;

[0088] 4) turn on the suction casting function of the device to ensure that the titanium-based amorphous alloy raw material melt is completely sucked into the forming cavity of the mold 1000, and turn off the suction casting function. After standing and cooling for 30 minutes, open the argon protection, wait for the pressure in the electric arc furnace to be normal, open the chamber door of the electric arc furnace, and disassemble the mold 1000 device;

[0089] 5) take out the product in the mold 1000 core, polish the parting line of the product, polish the surface, and complete the product processing.

[0090] Example 4

[0091] Ti 44 Cu 35 Zr4Hf3Ni7Si3Sn4

[0092] 1) Prepare the alloy raw materials according to the above mass percentage, and then add the alloy raw materials into the melting pool 210 of the assembled mold 1000;

[0093] 2) Close the chamber and ensure that the equipment is normal and the seal is normal. First, use a mechanical pump to pump the vacuum in the furnace to below 20 Pa, and then use a molecular pump to continue pumping the vacuum to 3.0 x 10 -3 Pa, and then close the valves and fill in high-purity argon (purity 99.99%) to provide inert atmosphere protection for the following arc melting of the alloy ingot;

[0094] 3) Melt the alloy raw materials in the melting pool 210. Electromagnetic stirring can be used during the melting process, and the melting time is 30 minutes. After melting, each alloy ingot is turned over and re-melted with a turning spoon, and each alloy ingot is melted for not less than four times. Specifically, the number of melting times in this embodiment is 4 times;

[0095] 4) Turn on the suction casting function of the equipment to ensure that the titanium-based amorphous alloy raw material melt is completely sucked into the mold 1000 forming cavity, and turn off the suction casting function. After standing and cooling for 30 min, open the argon protection, and after the pressure in the arc furnace is normal, open the chamber door of the arc furnace, and disassemble the mold 1000 device;

[0096] 5) Take out the product in the mold 1000 core, polish the parting line of the product, and polish the surface to complete the product processing.

[0097] Comparative Example 1

[0098] This comparative example provides a titanium-based amorphous alloy, the composition of which is shown in the following general formula: Ti 68.8 Zr 11.6 Cu 5.1 Co6 Al 6.5 Ta2. The hardness and tensile strength of the titanium-based amorphous alloy are both small.

[0099] Comparative Example 2

[0100] This comparative example provides a titanium-based amorphous alloy, the composition of which is shown in the following general formula: Ti 50 Cu 25 Ni 22 Al3. The tensile strength of the titanium-based amorphous alloy is small.

[0101] Comparative Example 3

[0102] The comparative example provides a titanium-based amorphous alloy, the composition of which is shown in the following general formula: Ti 66 Zr8Cu 15 Ni 10 Al 0.5 Si 0.5 The titanium-based amorphous alloy has a small tensile strength.

[0103] The stainless steel SUS316 alloy has good corrosion resistance, especially to chlorides, but has a high production cost. The stainless steel SUS316 alloy has a low strength, is difficult to process, has a large weight, and has relatively poor wear resistance. In a working environment that needs to bear a large friction, the stainless steel SUS316 alloy is not suitable.

[0104] The raw material and production process of the titanium alloy TC4 are relatively complex, resulting in a cost much higher than that of common steel and aluminum alloys. Especially, the smelting, processing, and surface treatment of the titanium alloy require special techniques and equipment, which makes the application cost of the TC4 alloy high. In addition, the titanium alloy TC4 may exhibit brittleness under certain conditions, especially at high temperatures or after some improper processing or welding, which may cause stress corrosion cracking, especially in a chlorine-containing environment. Furthermore, the titanium alloy TC4 has poor wear resistance. The surface treatment technology of the titanium alloy also requires a high level, especially in terms of corrosion resistance and aesthetics, which needs to be treated by anodic oxidation, spraying, etc., increasing the difficulty of production and maintenance.

[0105] The titanium-based amorphous alloy has a large advantage over the stainless steel and the titanium alloy. The titanium-based amorphous alloy has a large hardness, a large tensile strength, and a moderate density. The alloy with a large hardness can bear a stronger friction force, thus having better wear resistance. The alloy with a large tensile strength can bear a larger tensile force without breaking or deforming, thus having higher structural stability and reliability. The alloy with a high hardness and a large tensile strength can effectively prevent deformation, damage, or breakage in long-term use, thereby improving the safety and durability of the product. The alloy with a high hardness and a large tensile strength also has corrosion resistance. In addition, the moderate density can reduce the weight without sacrificing the strength and rigidity. Moreover, the alloy with a moderate density is usually easier to process than the high-density alloy. The alloy with a moderate density has good corrosion resistance and fatigue resistance.

[0106] In addition, the product formed by the titanium-based amorphous alloy has a very mirror-like surface gloss. Compared with other materials, the titanium-based amorphous alloy is a very suitable material for ornaments.

[0107] The titanium amorphous alloys prepared in Examples 1-4 were subjected to hardness test at room temperature, tensile strength test, and density test. The following is a performance comparison table of titanium-based amorphous alloys of Examples 1-4 and other compositions and commonly used alloys on the market, see Table 1: Performance Test Comparison Table.

[0108] Alloy Vickers hardness (HV) Tensile strength Density (g / cm3) Example 1 580 1960 6.14 Example 2 600 2020 6.21 Example 3 590 1980 6.14 Example 4 560 1930 5.84 Comparative Example 1 538 1755 5.27 Comparative Example 2 620 1643 6.06 Comparative Example 3 574 1653 5.47 SUS316 200 620 8.03 TC4 400 930 4.5

[0109] Table 1. Performance Test Comparison Table

[0110] The titanium-based amorphous alloy in the present embodiment has a composition as shown in the general formula: TiaCubZrcHfdNieSifSng; wherein a, b, c, d, e, f and g are all atomic percentages, and the sum of a, b, c, d, e, f and g is 100. The titanium-based amorphous alloy thus prepared does not contain the toxic substance Be in its composition, and can improve environmental protection. The titanium-based amorphous alloy prepared according to the above-mentioned proportions and composition has the characteristics of high hardness, high tensile strength and low density, and can meet the demand of precision structural parts. Among them, a, b, c, d, e, f and g satisfy: 30 < a < 50, 20 < b < 40, 2 < c < 10, 1 < d < 10, 1 < e < 10, 0 < f < 3, and 0 < g < 6.

[0111] The value of a can be any value in the range of 30 to 50, such as 30.5, 31, 32, 32.5, 33, 33.5, 34, 34.5, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 47.5, 48, 48.5, 49, 49.5, etc. The value of b can be any value in the range of 20 to 40, such as 20, 20.5, 21, 21.5, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 35.5, 36, 36.5, 37, 37.5, 38, 38.5, 39, 39.5, etc. The value of c can be any value in the range of 2 to 10, such as 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, etc. The value of d can be any value in the range of 1 to 10, such as 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, etc. The value of e can be any value in the range of 1 to 10, such as 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, etc. The value of f can be any value in the range of 0 to 3, such as 0.5, 1, 1.5, 2, 2.5, etc. The value of g can be any value in the range of 0 to 6, such as 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, etc.

[0112] Further, a, b, c, d, e, f and g satisfy: 35

[0113] Preferably, the value of a is 41.5, the value of b is 37.5, the value of c is 2.5, the value of d is 5, the value of e is 7.5, the value of f is 1, and the value of g is 5; that is, the composition expression of the titanium-based amorphous alloy at this time is: Ti 41.5 Cu 37.5 Zr 2.5 Hf5Ni 7.5 Si1Sn5.

[0114] Preferably, the value of a is 40, the value of b is 38.5, the value of c is 3.5, the value of d is 5, the value of e is 7, the value of f is 2, and the value of g is 4; that is, the composition expression of the titanium-based amorphous alloy at this time is: Ti 40 Cu 38.5 Zr 3.5Hf5Ni7Si2Sn4.

[0115] Preferably, a is 41, b is 37, c is 3, d is 4, e is 8, f is 1.5, and g is 5.5; that is, the composition expression of the titanium-based amorphous alloy at this time is: Ti 41 Cu 37 Zr3Hf4Ni8Si 1.5 Sn 5.5 .

[0116] Preferably, a is 44, b is 35, c is 4, d is 3, e is 7, f is 3, and g is 4; that is, the composition expression of the titanium-based amorphous alloy at this time is: Ti 44 Cu 35 Zr4Hf3Ni7Si3Sn4.

[0117] The embodiment of the utility model further provides a structural member, the structural member is prepared by the above-mentioned titanium-based amorphous alloy.

[0118] The titanium-based amorphous alloy in the embodiment can improve environmental protection, and can also improve the hardness and tensile strength of the titanium-based amorphous alloy, and reduce the density. The titanium-based amorphous alloy can be used to make various ornaments or other structural members, and the structural member with the titanium-based amorphous alloy has the same functions as described above, which are not limited herein. The titanium-based amorphous alloy structural member is processed by using the arc smelting suction casting method, the production of the titanium-based amorphous alloy ornament can be quickly realized, a high-brightness surface can be formed on the structural member, the subsequent polishing of the product is reduced, the processing process is simplified, the processing time is saved, the processing efficiency is improved.

[0119] In summary, the mold 1000 provided by the embodiment comprises a center module 100, an upper mold plate 200, a middle mold plate 300, a first module 500 and a second module 600, the upper mold plate 200 is provided with a smelting pool 210; the smelting pool 210 is used for placing raw materials. The upper mold plate 200 is provided with a first containing cavity 220, and the first containing cavity 220 is communicated with the smelting pool 210; the middle mold plate 300 is connected with the upper mold plate 200 and is arranged in a stack manner; the middle mold plate 300 is provided with a second containing cavity 310, and the second containing cavity 310 is communicated with the first containing cavity 220; the first containing cavity 220 and the second containing cavity 310 are used for placing the center module 100 together; there is a gap 400 between the center module 100 and the inner wall of the first containing cavity 220; the first module 500 and the second module 600 are arranged at intervals around the center module 100 and are located in the second containing cavity 310; the first module 500, the second module 600 and the center module 100 jointly enclose a product forming cavity 700. By arranging the center module 100 and the gap 400 between the center module 100 and the inner wall of the first containing cavity 220, the raw materials flow from the smelting pool 210 to the product forming cavity 700 through the gap 400, the flow and flow rate of the raw materials entering the product forming cavity 700 can be slowed down, the purpose of buffering is achieved, and the erosion phenomenon of the raw materials to the product forming cavity 700 of the mold 1000 is effectively alleviated, so that the service life of the mold 1000 is improved.

[0120] The above merely describes the specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A mold characterized in that, The utility model relates to a mold (1000) for product forming, which comprises: a center module (100); an upper mold plate (200) provided with a smelting pool (210); the upper mold plate (200) is provided with a first accommodating cavity (220) in communication with the smelting pool (210); a middle mold plate (300) connected with the upper mold plate (200) and arranged in layers; the middle mold plate (300) is provided with a second accommodating cavity (310) in communication with the first accommodating cavity (220); the first accommodating cavity (220) and the second accommodating cavity (310) are used for placing the center module (100) together; a gap (400) exists between the center module (100) and the inner wall of the first accommodating cavity (220); a first module (500) and a second module (600) arranged at intervals around the center module (100) and located in the second accommodating cavity (310); the first module (500), the second module (600) and the center module (100) jointly enclose a product forming cavity (700).

2. The mold of claim 1, wherein The center module (100) is in the shape of a circular truncated cone and comprises a large end (110) and a small end (120), and the small end (120) is close to the smelting pool (210).

3. The mold of claim 2, wherein, The large end (110) of the center module (100) is further provided with a boss (130) on one side, and the diameter of the boss (130) is greater than that of the large end (110).

4. The mold of claim 1, wherein The upper mold plate (200) is provided with a first screw hole (230), and the middle mold plate (300) is provided with a second screw hole; the first screw hole (230) and the second screw hole are arranged correspondingly; the first screw hole (230) and the second screw hole are used for mounting a threaded fastener to connect the upper mold plate (200) and the middle mold plate (300).

5. The mold of claim 4, wherein, The number of the first screw hole (230) and the second screw hole is multiple; the first screw hole (230) and the second screw hole are arranged one-to-one correspondingly, and the first screw hole (230) is arranged at intervals.

6. The mold of claim 1, wherein The mold (1000) further comprises a lower mold plate (800) connected with the middle mold plate (300) and arranged in layers.

7. The mold of claim 6, wherein The lower mold plate (800) is provided with an air channel (820) for communicating the second accommodating cavity (310) with the outside.

8. The mold of claim 6, wherein, The lower mold plate (800) and the middle mold plate (300) are connected by threads.

9. The mold of claim 6, wherein, The lower mold plate (800) is made of magnesium alloy or aluminum alloy.

10. The mold according to any one of claims 1 to 9, characterized in that, The upper mold plate (200) is made of copper alloy, and / or the middle mold plate (300) is made of mold (1000) steel.

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