Preparation method of amorphous product and amorphous product

Abstract

The embodiment of the invention provides a preparation method of an amorphous product and the amorphous product, and relates to the technical field of amorphous product manufacturing. The preparation method of the amorphous alloy product comprises the following steps: preparing a mold, and mounting the mold on a die-casting machine; preparing a metal insert; the metal insert is installed in the mold; heating the amorphous alloy material to a molten state, and adding the amorphous alloy material into a charging barrel of a die-casting machine; the amorphous alloy material in the molten state is injected into the mold cavity provided with the metal insert through the die-casting machine, and an amorphous alloy blank is obtained after cooling; and the amorphous alloy blank is subjected to follow-up treatment, and an amorphous alloy product is obtained. The metal insert is mounted in the mold, so that the amorphous alloy material can be quickly cooled in the mold when being subjected to injection, the thickness of the prepared amorphous alloy product is increased, and the large-thickness amorphous alloy products can be batched.

Description

Technical Field

[0001] The present invention relates to the technical field of amorphous product manufacturing, and in particular to a method for preparing an amorphous product and the amorphous product. Background Art

[0002] Bulk amorphous alloys are formed by rapidly cooling liquid metal, preventing its atoms from aligning in time. They exhibit a microstructure characterized by long-range disorder and short-range order. They offer significant advantages in density, strength, rigidity, and wear resistance, making them a promising new material for harmonic reducers.

[0003] However, bulk amorphous alloys are affected by the cooling rate. Currently, the thickness of industrially mass-produced amorphous alloy monomers is approximately less than or equal to 30 mm, which makes it impossible to apply bulk amorphous alloys to larger structural parts (such as steel wheels). Summary of the Invention

[0004] The present invention provides a method for preparing an amorphous product and an amorphous product, which can rapidly cool a bulk amorphous material, thereby realizing batch preparation of amorphous products with a relatively large thickness.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a method for preparing an amorphous product, which comprises the following steps:

[0007] preparing a mold and installing the mold in a die casting machine;

[0008] preparing metal inserts;

[0009] installing the metal insert into the mold;

[0010] preparing an amorphous alloy material, heating the amorphous alloy material to a molten state, and adding the amorphous alloy material into the barrel of the die-casting machine;

[0011] The die-casting machine injects the molten amorphous alloy material into a mold cavity equipped with the metal insert, and after cooling, obtains an amorphous alloy billet;

[0012] The amorphous alloy blank is subsequently processed to obtain an amorphous alloy product.

[0013] In an optional embodiment, installing the metal insert into the mold includes:

[0014] In the case of an open mold, installing the metal insert into the mold;

[0015] Mold closing.

[0016] In an optional embodiment, after the injection step and before the subsequent processing step, the method for preparing the amorphous product further includes:

[0017] When the mold is opened, the metal insert is implanted into the mold again, and the mold is closed; and the next injection production is performed;

[0018] The above steps may be repeated before performing the subsequent processing.

[0019] In an optional embodiment, the injection molding adopts segmented injection molding, the injection molding speed in the first stage is 0.1m / s to 0.5m / s, and the injection molding speed in the second stage is 1.2m / s to 1.8m / s.

[0020] In an optional embodiment, the cooling time of the injection is 2s to 5s.

[0021] In an optional embodiment, after the step of preparing the amorphous alloy material and before the step of injection molding, the method further includes:

[0022] The mold is heated, and the vacuum degree and melt temperature of the die-casting machine are set.

[0023] In an optional embodiment, the heating temperature of the mold is 260° C. to 300° C.;

[0024] And / or, the vacuum degree is set to be less than or equal to 50 Pa;

[0025] And / or, the melt temperature is set to 900°C to 1000°C.

[0026] In an optional embodiment, the subsequent processing includes:

[0027] performing rough processing on the amorphous alloy blank;

[0028] removing the metal insert;

[0029] The amorphous alloy blank is subjected to fine processing.

[0030] In an optional embodiment, the rough processing of the amorphous alloy billet includes: removing excess cakes of the amorphous alloy billet, and removing flow channels and exhaust defects.

[0031] In an optional embodiment, the material of the metal insert is aluminum alloy, magnesium alloy or copper alloy;

[0032] And / or, the amorphous alloy material is Zr 53 Cu 22.1 Ni 11.9 Al8Ti5.

[0033] An embodiment of the present invention further provides an amorphous product, which is prepared using the method for preparing an amorphous product described in any of the above embodiments.

[0034] The method for preparing the amorphous product according to the embodiment of the present invention and the beneficial effects of the amorphous product include, for example:

[0035] The preparation method of the amorphous product comprises the following steps:

[0036] Prepare the mold and install it on the die casting machine;

[0037] preparing metal inserts;

[0038] Installing the metal insert into the mold;

[0039] Preparing an amorphous alloy material, heating the amorphous alloy material to a molten state, and adding the amorphous alloy material to a barrel of a die-casting machine;

[0040] The die-casting machine injects the molten amorphous alloy material into the mold cavity equipped with metal inserts, and after cooling, obtains the amorphous alloy blank;

[0041] The amorphous alloy blank is subsequently processed to obtain an amorphous alloy product.

[0042] By installing the metal insert into the mold, the amorphous alloy material can be quickly cooled in the mold during injection molding, thereby increasing the thickness of the amorphous product produced and realizing batch production of thicker amorphous products. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 Schematic diagram of the process for preparing an amorphous product provided in an embodiment of the present invention;

[0045] Figure 2 Schematic diagram of the process for preparing an amorphous product provided in an embodiment of the present invention;

[0046] Figure 3 A schematic flow chart of subsequent processing steps provided in an embodiment of the present invention;

[0047] Figure 4 A schematic structural diagram of a mold provided in an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of a mold provided in an embodiment of the present invention;

[0049] Figure 6 A schematic cross-sectional view of a mold provided in an embodiment of the present invention;

[0050] Figure 7 This is an enlarged schematic diagram of the cavity provided in an embodiment of the present invention.

[0051] Icons: 1000-mold; 100-fixed mold module; 110-fixed platen; 120-fixed mold core; 121-second chamber; 200-movable mold module; 210-movable platen; 220-movable mold core; 221-first chamber; 222-exhaust groove; 230-movable mold bottom plate; 240-mold foot; 300-cavity; 400-oil circuit; 410-oil inlet; 420-oil outlet; 500-cooling water circuit; 510-water inlet; 520-water outlet; 600-die-casting channel; 700-ejector module; 710-ejector plate; 720-ejector; 800-mouth sleeve; 2000-amorphous alloy product; 3000-amorphous alloy blank; 4000-metal insert. DETAILED DESCRIPTION

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0055] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the amorphous alloy product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0057] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0058] Harmonic reducers, with their advantages of precise transmission and compact structure, have become core components in high-end manufacturing fields such as robotics and semiconductors. 40CrNiMo alloy is a common material for harmonic reducer sheaves, but my country primarily relies on imports for these sheaves. High material costs and complex manufacturing processes have hampered the development of harmonic reducers in my country.

[0059] Bulk amorphous alloys are formed by rapidly cooling liquid metal, preventing its atoms from aligning in time. They exhibit a microstructure characterized by long-range disorder and short-range order. Their density, strength, rigidity, and wear resistance are significantly superior to those of 40CrNiMo alloys, making them a promising new material for harmonic reducers.

[0060] The formation of amorphous alloys requires extremely high cooling rates to ensure that the liquid metal does not crystallize during solidification. However, the cooling rate affects the bulk of amorphous alloys. Currently, the thickness of industrially mass-produced amorphous alloy monomers is approximately 30mm or less, and amorphous alloy products are mainly used in hinges for folding mobile phones. Because the maximum thickness of industrially mass-produced amorphous alloys is only about 30mm, its application in larger structural parts (such as rigid wheels) is restricted. The outer diameter of a rigid wheel is typically 70.2mm, while the thickness of amorphous alloy products is usually 5.5-8.0mm.

[0061] Based on this, see Figure 1The method for preparing the amorphous alloy product 2000 provided in the embodiments of the present invention can effectively solve the technical problems mentioned above. The method for preparing the amorphous alloy product 2000 can enable the block amorphous material to be quickly cooled, thereby realizing the batch production of amorphous alloy products 2000 with a larger thickness. The method for preparing the amorphous alloy product 2000 is mainly used for the preparation of amorphous alloy products 2000 for the rigid wheel of a harmonic reducer. Of course, the method can also be used to prepare other large-sized amorphous alloy products 2000, which is not limited here. The following takes the preparation of the amorphous alloy product 2000 for the rigid wheel of a harmonic reducer as an example.

[0062] Figure 1 FIG. 1 is a flow chart of a method for preparing an amorphous alloy product 2000 provided in an embodiment of the present invention. Figure 1 As shown, the method for preparing the amorphous alloy product 2000 provided in the embodiment of the present invention includes the following steps:

[0063] S1. Preparing the mold 1000: preparing the mold 1000 and installing the mold 1000 on the die-casting machine;

[0064] The mold 1000 is prepared and the assembled mold 1000 is installed in a vacuum die casting machine.

[0065] Specifically, in this embodiment, the prepared mold 1000 is installed in a horizontal die-casting machine. The injection process of the horizontal die-casting machine is highly controllable, and the molten metal flows in the horizontal pressure chamber and is evenly distributed by gravity, which can reduce defects such as air entrapment and turbulence, and cold shuts. And the filling speed can be accurately controlled by multi-stage injection (such as slow speed → high speed → boost). Moreover, by using a horizontal die-casting machine, the horizontal mold closing method makes the force on the mold 1000 symmetrical, which can reduce eccentric load wear and extend the service life of the mold 1000. In addition, the horizontal die-casting machine has a strong continuous production capacity and high production efficiency, and is suitable for large-scale mass production. Of course, a vertical die-casting machine or other types of die-casting machines can also be used, which are not limited here.

[0066] S2, preparing metal insert 4000;

[0067] The metal insert 4000 is prepared according to the structural design of the amorphous alloy product 2000. That is, the shape and size of the metal insert 4000 match the shape and size of the amorphous alloy product 2000.

[0068] S3, installing the metal insert 4000 into the mold 1000;

[0069] Installing the metal insert 4000 into the mold 1000 includes: installing the metal insert 4000 into the mold 1000 when the mold is open; and closing the mold.

[0070] That is, the mold 1000 is opened, the metal insert 4000 is installed in the cavity 300 of the mold 1000, and then the mold is closed.

[0071] S4, preparing an amorphous alloy material, heating the amorphous alloy material to a molten state, and adding the material to the barrel of the die-casting machine;

[0072] According to the specific amorphous alloy product 2000 to be processed, different amorphous alloy materials are selected, and the required amorphous alloy materials are prepared, and then heated to a molten state and added into the barrel of the die-casting machine.

[0073] The execution order of steps S1, S2, S3, and S4 does not affect the final result. These steps can be performed in a nonlinear manner and do not have to follow a strict sequence.

[0074] S5. Injection: The die-casting machine injects the molten amorphous alloy material into the cavity of the mold 1000 equipped with the metal insert 4000. After cooling, the amorphous alloy blank 3000 is obtained.

[0075] After turning on the die-casting machine and confirming that it is functioning properly, the die-casting process begins. The die-casting machine injects the molten amorphous alloy material into the cavity 300 of the mold 1000, which houses the metal insert 4000. This completes the injection molding of the amorphous alloy product 2000. After the amorphous alloy product 2000 cools and forms, the mold 1000 opens, removing the amorphous alloy blank 3000 embedded in the metal insert 4000.

[0076] Specifically, the ejector pin of the mold 1000 ejects the amorphous alloy blank 3000 embedded with the metal insert 4000, and the robot grips and removes the amorphous alloy blank 3000. Of course, other methods can also be used to remove the amorphous alloy blank 3000 with the metal insert 4000, which are not limited here.

[0077] S6. Subsequent processing: performing subsequent processing on the amorphous alloy blank 3000 to obtain the amorphous alloy product 2000.

[0078] By installing the metal insert 4000 into the mold 1000, the amorphous alloy material can be rapidly cooled within the mold 1000 during injection molding, thereby increasing the thickness of the resulting amorphous alloy product 2000 and enabling mass production of thicker amorphous alloy products 2000. The above method for producing amorphous alloy products 2000 can meet the cooling rate of bulk amorphous alloys during the production process, thereby producing larger amorphous alloy products 2000.

[0079] To ensure both a cooling effect and the service life of the metal insert 4000 without affecting the production of the amorphous alloy product 2000, the metal insert 4000 in this embodiment is made of aluminum alloy, magnesium alloy, or copper alloy. Of course, the metal insert 4000 can also be made of other metal materials with good corrosion and wear resistance, and this is not limited here. As long as the metal insert 4000 does not react with the amorphous alloy material and provides a cooling effect, it will be sufficient.

[0080] During the die-casting process, to avoid turbulence, air entrainment, or localized solidification during the filling process, the injection molding process in this embodiment adopts a staged injection molding process. The injection speed in the first stage is 0.1m / s to 0.5m / s, and the injection speed in the second stage is 1.2m / s to 1.8m / s. Preferably, the injection speed in the first stage is 0.2m / s, and the injection speed in the second stage is 1.5m / s.

[0081] In order to ensure the quality of the processed amorphous alloy product 2000, the cooling time in the injection step in this embodiment is 2s to 5s. Preferably, the cooling time in the injection step in this embodiment is 2s.

[0082] Figure 2 Schematic diagram of the process for preparing the amorphous alloy product 2000 provided in the embodiment of the present invention. Figure 2 In this embodiment, after the step of preparing the amorphous alloy material and before the step of injection, the method further includes:

[0083] The mold 1000 is heated, and the vacuum degree and melt temperature of the die casting machine are set.

[0084] The temperature uniformity of the mold 1000 is crucial to the dimensional accuracy of the amorphous alloy product 2000. Performing filling and die-casting at a stable temperature in the mold 1000 can reduce defects such as short shots and flow marks, thereby improving molding quality. Furthermore, preheating the mold 1000 in advance can also reduce initial production adjustment time, allowing the mold 1000 to enter a stable production state more quickly, thereby improving production efficiency. Furthermore, this design can prevent damage to the mold 1000 due to sudden cooling and heating, thereby increasing the service life of the mold 1000. The vacuum degree and melt temperature settings of the die-casting machine are also important parameters for ensuring the production quality of the amorphous alloy product 2000.

[0085] Specifically, to ensure the production quality of the amorphous alloy product 2000, the heating temperature of the mold 1000 in this embodiment is 260°C to 300°C; and / or the vacuum level is set to be less than or equal to 50 Pa; and / or the melt temperature is set to be 900°C to 1000°C. Preferably, in this embodiment, the temperature of the mold 1000 is set to 280°C, the vacuum level is set to 50 Pa, and the melt temperature is set to 950°C; the mold force is set to 200T. The mold force is the maximum pressing force applied to the movable platen 210 when the mold 1000 is closed, to ensure that the mold 1000 does not open due to the injection force during the injection process, thereby preventing flashing and ensuring smooth injection.

[0086] When the mold temperature controller shows that the return oil temperature of mold 1000 is within the range of 260℃~300℃ and the vacuum degree in the die-casting machine chamber is ≤50pa, close the mold and check whether all parameters are normal. After all the tests are normal, start the die-casting machine and perform injection.

[0087] Please continue reading Figure 2 In order to further accelerate the cooling rate of the amorphous alloy blank 3000, after the injection step and before the subsequent processing steps, the preparation method of the amorphous alloy product 2000 further includes:

[0088] When the mold 1000 is opened, the metal insert 4000 is implanted into the mold 1000 again, and the mold is closed; the next injection production is carried out; this step can be repeated before the subsequent processing is carried out.

[0089] That is, the above steps can be repeated until the amorphous alloy product 2000 of the desired thickness is produced, and then the above steps are stopped and the subsequent processing steps are performed.

[0090] The thickness of the metal insert 4000 may be smaller than the thickness of the amorphous alloy product 2000 to be produced. The amorphous alloy product 2000 of a specified thickness can be produced by accumulating the metal insert 4000 multiple times and performing multiple injection molding.

[0091] The implantation of the metal insert 4000 can be performed manually or automatically by a robot, which is not limited here.

[0092] Figure 3 Schematic diagram of the subsequent processing steps provided in the embodiment of the present invention. Figure 3 , the subsequent processing in this embodiment includes:

[0093] S61: performing rough processing on the amorphous alloy blank 3000;

[0094] In this embodiment, the rough processing of the amorphous alloy blank 3000 includes: removing excess cakes of the amorphous alloy blank 3000 and removing flow channels and exhaust defects.

[0095] Specifically, in this embodiment, laser cutting is used to remove excess cakes of the amorphous alloy billet 3000 and remove flow passages and exhaust defects.

[0096] S62: Remove metal insert 4000;

[0097] Optionally, the metal insert 4000 is removed by numerical control machining. Of course, the metal insert 4000 can also be removed manually or by other methods, which are not limited here.

[0098] S63: performing fine processing on the amorphous alloy blank 3000.

[0099] Specifically, in this embodiment, CNC machining is used to refine the amorphous alloy diamond wheel blank and complete the gear hobbing process on the top of the steel wheel.

[0100] S64: inspecting and cleaning the amorphous alloy product 2000;

[0101] S65: Pack the amorphous alloy product 2000 to complete the finished product.

[0102] The commonly used 40CrNiMo steel wheel preparation process includes forging, upsetting, turning, heat treatment, fine turning, fine grinding, and gear hobbing. The preparation process is long and has high process requirements. The production cycle of amorphous alloy products is as long as 2000, and the material utilization rate is only 20%. The amorphous alloy material used in this embodiment is Zr 53 Cu 22.1 Ni 11.9 Al8Ti5 zirconium-based amorphous alloy, the density of this amorphous alloy material is lower than that of 40CrNiMo, and the density of this material is 6.73g / cm 3 , Vickers hardness (HV) is 568±30, yield strength is 1660Pa, and elastic limit ≈2%. Zirconium-based amorphous alloy has ultra-high strength and hardness, excellent elastic limit and outstanding corrosion resistance, good wear resistance, good formability and surface finish. The amorphous alloy product 2000 prepared using zirconium-based amorphous alloy also has the same properties as mentioned above, and the amorphous alloy product 2000 is of good quality. Of course, other amorphous alloy materials, such as titanium-based amorphous alloys, can also be used according to the prepared amorphous alloy product 2000, which is not limited here.

[0103] An embodiment of the present invention further provides an amorphous alloy product 2000 , which is manufactured using the method for preparing the amorphous alloy product 2000 described in any of the above embodiments.

[0104] Figure 4 Schematic diagram of the mold 1000 provided in an embodiment of the present invention. Figure 4The mold 1000 mentioned above, specifically, the mold 1000 in this embodiment includes a fixed mold module 100 and a movable mold module 200, a die-casting channel 600 is opened on the fixed mold module 100, the movable mold module 200 corresponds to the fixed mold module 100, and a cavity 300 for casting is formed between the movable mold module 200 and the fixed mold module 100, and the cavity 300 is connected to the die-casting channel 600.

[0105] Furthermore, to guide the melt flow and prevent leakage, the die-casting channel 600 in this embodiment is provided with a sprue sleeve 800. To prevent the amorphous alloy material from being directly poured into the mold cavity 300, which would create excessive impact and affect the production quality of the amorphous alloy product 2000, the die-casting channel 600 in this embodiment is not directly connected to the mold cavity 300. Instead, the die-casting channel 600 and the mold cavity 300 are connected via a connecting channel. The central axis of the die-casting channel 600 is not collinear with the central axis of the mold cavity 300.

[0106] Figure 5 Schematic diagram of a mold 1000 provided in an embodiment of the present invention; Figure 6 Schematic cross-sectional view of the mold 1000 provided in an embodiment of the present invention. Figure 5 and Figure 6 As shown, the mold 1000 in this embodiment includes a fixed mold module 100 and a movable mold module 200, and a die-casting channel 600 is provided on the fixed mold module 100; the movable mold module 200 corresponds to and matches the fixed mold module 100, and a cavity 300 for casting is formed between the movable mold module 200 and the fixed mold module 100, and the cavity 300 is connected to the die-casting channel 600; and the movable mold module 200 is movable to approach or move away from the fixed mold module 100; the movable mold module 200 is provided with an oil circuit 400, and the oil circuit 400 is used to pass hydraulic oil to adjust the temperature of the movable mold module 200.

[0107] Specifically, the fixed die assembly 100 is installed on a die-casting machine or other equipment. Before die-casting, the movable die assembly 200 is moved away from the fixed die assembly 100, the mold 1000 is opened, and the metal insert 4000 is placed into the mold cavity 300 of the mold 1000. Then, the movable die assembly 200 is moved so that it cooperates with the fixed die assembly 100 to jointly clamp the metal insert 4000. By introducing hydraulic oil into the oil circuit 400 of the movable die assembly 200 and adjusting the temperature of the hydraulic oil, the temperature of the movable die assembly 200 is adjusted. After it reaches the set temperature, the die-casting machine injects the amorphous alloy material into the mold cavity 300 with the metal insert 4000 through the die-casting channel 600. After the amorphous alloy product 2000 cools, the amorphous alloy product 2000 is removed.

[0108] The die-casting machine performs die-casting on the amorphous alloy material in the cavity 300 through the die-casting channel 600. At the same time, hydraulic oil is introduced into the movable die module 200 through the oil circuit 400 to adjust the temperature of the movable die module 200. The temperature uniformity of the mold 1000 is crucial to the dimensional accuracy of the amorphous alloy product 2000. The above design can reduce thermal stress deformation during processing, and filling and die-casting at a stable temperature can reduce defects such as short shots and flow marks, thereby improving the molding quality. In addition, by introducing hydraulic oil into the oil circuit 400 before processing, the movable die module 200 can be preheated, reducing the initial adjustment time of production, and allowing the mold 1000 to enter a stable production state faster, thereby improving production efficiency. In addition, such a design can also prevent the mold 1000 from being damaged due to sudden cooling and heating, thereby increasing the service life of the mold 1000.

[0109] See also Figure 6 The oil circuit 400 in this embodiment includes an oil inlet 410 and an oil outlet 420, and the oil inlet 410 and the oil outlet 420 are located on the same side of the movable mold module 200. By arranging the oil inlet 410 and the oil outlet 420 on the same side of the movable mold module 200, the flow path of the hydraulic oil in the movable mold module 200 can be extended, so that the hydraulic oil can fully exchange heat with the movable mold module 200. The oil inlet 410 and the oil outlet 420 are arranged on the same side, and the oil circuit 400 can be designed to be U-shaped, spiral-shaped, grid-shaped, etc. The oil circuit 400 runs through the movable mold core 220 of the movable mold module 200 to ensure uniform heat transfer and avoid local overheating or overcooling of the movable mold core 220. Moreover, such an arrangement can also reduce heat loss. Furthermore, the oil inlet 410 and the oil outlet 420 are disposed on the same side, allowing for centralized openings, thereby avoiding multiple openings on multiple sides of the mold 1000. This reduces cutting of the mold 1000 and maintains the rigidity of the mold 1000. Of course, the oil inlet 410 and the oil outlet 420 may also be disposed on opposite sides of the movable mold assembly 200, or on adjacent sides, without limitation.

[0110] In order to improve the processing quality of the amorphous alloy product 2000 placed in the cavity 300, please continue to refer to Figure 6The movable mold assembly 200 in this embodiment includes a movable mold plate 210 and a movable mold core 220. The movable mold plate 210 is provided with a groove for accommodating and fixing the movable mold core 220. That is, the movable mold core 220 is embedded in the movable mold plate 210. The end surface of the movable mold core 220 away from the movable mold plate 210 is provided with a first cavity 221 to form a part of the cavity 300; the movable mold core 220 is provided with an oil circuit 400, and the oil circuit 400 is arranged close to the first cavity 221. Because the oil circuit 400 is arranged close to the first cavity 221, the temperature of the hydraulic oil in the oil circuit 400 can be quickly transferred to the first cavity 221, thereby improving the heating or cooling efficiency and shortening the molding cycle. Moreover, the proximity of the oil circuit 400 to the cavity 300 can make the heat exchange of the cavity 300 more uniform, reduce the alternating thermal stress, and prevent cracks from occurring on the surface of the cavity 300. The oil circuit 400 near the mold cavity 300 also quickly stabilizes the temperature of moving components such as the ejector pin 720, reducing the risk of seizure due to thermal expansion. The oil circuit 400 can also be located elsewhere on the movable mold core 220, without limitation here. The shape of the oil circuit 400 is also not limited and will be determined based on actual processing conditions.

[0111] In order to adjust the height of the movable mold assembly 200, the movable mold assembly 200 in this embodiment also includes a movable mold base plate 230 and a mold foot 240. The movable mold base plate 230 is spaced apart from the movable mold plate 210, and the movable mold base plate 230 and the movable mold plate 210 are connected by the mold foot 240. By providing the mold foot 240 between the movable mold base plate 230 and the movable mold plate 210, surface contact can be changed to point contact, thereby ensuring the stability and balance of the mold 1000. At the same time, the mold foot 240 also serves to support the mold 1000. In addition, by replacing the mold foot 240 with different heights, the overall height of the mold 1000 can be changed to meet the installation space requirements of the mold 1000 of different molding equipment.

[0112] See also Figure 6 To further improve production efficiency, enhance molding quality, and extend the service life of the mold 1000, a cooling water channel 500 is provided on the fixed mold assembly 100 in this embodiment. Cooling water can be introduced into the fixed mold assembly 100 through the cooling water channel 500 to rapidly reduce the temperature. Rapid and uniform cooling can reduce internal stress in the amorphous alloy product 2000, avoiding defects such as warping and sink marks. In addition, periodic heating or cooling can cause cracks in the mold core, and stable temperature control can extend the service life of the mold 1000.

[0113] Please continue reading Figure 6In this embodiment, the cooling water circuit 500 includes a water inlet 510 and a water outlet 520, which are located on the same side of the fixed mold module 100. By arranging the water inlet 510 and the water outlet 520 on the same side of the movable mold module 200, the flow path of the hydraulic oil in the movable mold module 200 can be extended, allowing it to fully exchange heat with the movable mold module 200. The water inlet 510 and the water outlet 520 are arranged on the same side. The cooling water circuit 500 can be designed in a U-shape, spiral shape, grid shape, etc. The cooling water circuit 500 runs through the fixed mold core of the fixed mold module 100 to ensure uniform heat transfer and avoid local overheating or overcooling of the fixed mold core. Moreover, this arrangement can also reduce heat loss. In addition, the water inlet 510 and the water outlet 520 are arranged on the same side, which can concentrate the openings, avoiding openings on multiple sides of the mold 1000, reducing cutting of the mold 1000, and thus maintaining the rigidity of the mold 1000. Of course, the water inlet 510 and the water outlet 520 may also be disposed on two opposite sides of the fixed mold assembly 100 , or on two adjacent sides, which is not limited here.

[0114] To improve the molding quality of the amorphous alloy product 2000, the fixed mold assembly 100 in this embodiment includes a fixed mold plate 110 and a fixed mold core 120. The fixed mold core 120 is provided with a groove for accommodating the fixed fixed mold core 120, that is, the fixed mold core 120 is embedded in the fixed mold plate 110. A second cavity 121 is defined on the end face of the fixed mold core 120 away from the fixed mold plate 110 to form part of the mold cavity 300; both the fixed mold plate 110 and the fixed mold core 120 are provided with a die-casting channel 600, which connects the second cavity 121 with the end face of the fixed mold plate 110 away from the movable mold assembly 200; and a cooling water channel 500 is defined on the fixed mold core 120, and the cooling water channel 500 is disposed near the second cavity 121. Because the cooling water channel 500 is located near the second cavity 121, the temperature of the cooling water in the cooling water channel 500 can be quickly transferred to the second cavity 121, improving heating or cooling efficiency and shortening the molding cycle. Furthermore, the proximity of the cooling water channel 500 to the mold cavity 300 can make the heat exchange in the mold cavity 300 more uniform, reduce alternating thermal stress, and prevent cracking on the surface of the mold cavity 300. The cooling water channel 500 can also be located at other locations on the fixed mold core 120, which is not limited here. The shape of the cooling water channel 500 is also not limited and is determined according to actual processing conditions.

[0115] In addition, in order to facilitate the removal of the formed amorphous alloy product 2000 from the cavity 300, please refer to Figure 6 , and combined with Figure 5, the mold 1000 in this embodiment also includes an ejector module 700, which is connected to the movable mold module 200, and the ejector module 700 is used to eject the amorphous alloy product 2000 after die-casting. Specifically, the ejector module 700 in this embodiment includes an ejector plate 710 and at least one ejector 720, and the ejector 720 is connected to the ejector plate 710; the ejector plate 710 is movably connected to the movable mold module 200, and the ejector 720 is inserted into the movable mold module 200, and the ejector 720 is used to eject the amorphous alloy product 2000 after die-casting. Of course, the ejector module 700 can also be designed in other forms, which are not limited here. For example, the ejector 720 can be elastically connected to the ejector plate 710, such as providing an elastic telescopic column or the ejector 720 and the ejector plate 710 are connected by a spring, etc., which are not limited here. To increase the structural strength of ejector plate 710, ejector plate 710 in this embodiment includes an ejector 720 front plate and an ejector 720 back plate. The ejector 720 front plate is connected to ejector 720, and the ejector 720 back plate is connected to the side of the ejector 720 front plate away from ejector 720. The ejector 720 back plate can be connected to other movable modules, which is not limited here.

[0116] Figure 7 FIG. 3 is an enlarged schematic diagram of the mold cavity 300 provided in an embodiment of the present invention. Figure 6 , and combined with Figure 7 In this embodiment, the movable mold core 220 further defines a venting groove 222, which communicates with the first chamber 221 and is recessed away from the fixed mold assembly 100. After the amorphous alloy product 2000 to be processed is placed in the first chamber 221, the venting groove 222 prevents the processed amorphous alloy product 2000 from being completely sealed within the mold cavity 300. If air within the mold core cannot be promptly expelled during melt filling, it may hinder melt flow and result in incomplete filling. The venting groove 222 allows for communication with the outside air to promptly expel air from the mold core, thereby improving the processing quality of the amorphous alloy product 2000. The venting groove 222 also serves as a slag trap, preventing the melt front from forming a hardened layer due to contact with the low-temperature mold core. The slag trap can contain degradation products or foreign matter in the material and direct them to a non-appearance area to avoid affecting the surface of the amorphous alloy product 2000, thereby improving the processing quality of the amorphous alloy product 2000. In addition, the slag ladle groove can also serve as an auxiliary filling area to absorb excess melt to avoid flash. At the same time, it can reduce sink marks by compensating for shrinkage through subsequent pressure holding.

[0117] In summary, the method for preparing the amorphous alloy product 2000 includes the following steps:

[0118] S1. Preparing the mold 1000: preparing the mold 1000 and installing the mold 1000 on the die-casting machine;

[0119] S2, preparing metal insert 4000;

[0120] S3, installing the metal insert 4000 into the mold 1000;

[0121] S4, preparing an amorphous alloy material, heating the amorphous alloy material to a molten state, and adding the material to the barrel of the die-casting machine;

[0122] S5. Injection: The die-casting machine injects the molten amorphous alloy material into the cavity of the mold 1000 equipped with the metal insert 4000. After cooling, the amorphous alloy blank 3000 is obtained.

[0123] S6. Subsequent processing: performing subsequent processing on the amorphous alloy blank 3000 to obtain the amorphous alloy product 2000.

[0124] By installing the metal insert 4000 into the mold 1000, the amorphous alloy material can be quickly cooled in the mold 1000 during injection molding, thereby increasing the thickness of the amorphous alloy product 2000 and enabling mass production of thicker amorphous alloy products 2000.

[0125] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for preparing an amorphous product, characterized in that: The steps include: preparing a mold (1000), and installing the mold (1000) in a die-casting machine; preparing a metal insert (4000); Installing the metal insert (4000) into the mold (1000); preparing an amorphous alloy material, heating the amorphous alloy material to a molten state, and adding the amorphous alloy material into the barrel of the die-casting machine; The die-casting machine injects the molten amorphous alloy material into a cavity of a mold (1000) on which the metal insert (4000) is installed, and after cooling, obtains an amorphous alloy blank (3000); The amorphous alloy blank (3000) is subsequently processed to obtain an amorphous alloy product (2000).

2. The method for preparing an amorphous product according to claim 1, wherein: The step of installing the metal insert (4000) into the mold (1000) comprises: When the mold is open, the metal insert (4000) is installed in the mold (1000); Mold closing.

3. The method for preparing an amorphous product according to claim 1, wherein: After the injection step and before the subsequent processing step, the method for preparing the amorphous product further includes: When the mold (1000) is opened, the metal insert (4000) is implanted into the mold (1000) again, and the mold is closed; and the next injection production is performed; The above steps may be repeated before performing the subsequent processing.

4. The method for preparing an amorphous product according to claim 1, wherein: The injection is performed in stages, with the injection speed in the first stage being 0.1m / s to 0.5m / s and the injection speed in the second stage being 1.2m / s to 1.8m / s. And / or, the cooling time of the injection is 2s to 5s.

5. The method for preparing an amorphous product according to claim 1, wherein: After the step of preparing the amorphous alloy material and before the step of injecting, the method further includes: The mold (1000) is heated, and the vacuum degree and melt temperature of the die-casting machine are set.

6. The method for preparing an amorphous product according to claim 5, characterized in that: The heating temperature of the mold (1000) is 260°C to 300°C; And / or, the vacuum degree is set to be less than or equal to 50 Pa; And / or, the melt temperature is set to 900°C to 1000°C.

7. The method for preparing an amorphous product according to claim 1, wherein: The subsequent processing includes: Rough processing is performed on the amorphous alloy blank (3000); removing the metal insert (4000); The amorphous alloy blank (3000) is finely processed.

8. The method for preparing an amorphous product according to claim 7, characterized in that: The rough processing of the amorphous alloy blank (3000) includes: removing excess cakes of the amorphous alloy blank (3000), and removing flow channels and exhaust defects.

9. The method for preparing an amorphous product according to any one of claims 1 to 8, characterized in that: The material of the metal insert (4000) is aluminum alloy, magnesium alloy or copper alloy; And / or, the amorphous alloy material is Zr 53 Cu 22.1 Ni 11.9 Al8Ti5.

10. An amorphous product, characterized in that: The amorphous product is prepared by the preparation method of any one of claims 1 to 9.

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