Amorphous assembly and preparation method thereof

Abstract

The invention provides an assembly containing an amorphous material. The assembly comprises an amorphous part and an assembly part which are fixedly connected, a riveting column is arranged on the amorphous part, a riveting hole matched with the riveting column is formed in the assembly part, the riveting column on the amorphous part is inserted into the riveting hole in the assembly part, and hot-pressing riveting is carried out on the riveting column on the amorphous part, so that the amorphous part and the assembly part are fixedly connected to form the amorphous-containing combined part; the amorphous part is a thin-wall part with the thickness ranging from 0.1 mm to 2 mm, the assembly part is a non-amorphous alloy metal component, and the thickness of the assembly part ranges from 0.1 mm to 5 mm. The invention further provides a preparation method of the assembly containing the amorphous alloy, and the technical problems that after an existing amorphous alloy part and other assembly parts are assembled, the occupied space is large, and the structural strength is low are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of amorphous composite materials, and in particular relates to an assembly containing amorphous materials and a preparation method thereof. Background Art

[0002] Amorphous alloys, also known as metallic glass, are long-range disordered solid alloy materials obtained when atoms do not have time to arrange and crystallize in an orderly manner during alloy solidification. Due to the long-range disordered arrangement of atoms, amorphous alloys have structural defects strictly limited to the size of a few atoms. Unlike crystalline materials, they will not preferentially slip on specific crystal planes under the action of external forces. Therefore, they have the characteristics of high strength, high hardness, excellent corrosion resistance and high elasticity.

[0003] Bulk amorphous alloys (referring to amorphous alloys with the ability to form within the size range used at the industrial level) with applicable capabilities have been applied in fields such as smart electronic manufacturing. In particular, zirconium-based amorphous alloys with zirconium as the main component have been widely used in products such as smart phones, laptops, sports equipment, medical devices, and automobiles. Among all application cases, the application advantage of bulk zirconium-based amorphous alloys as hinges for folding screen mobile phones is extremely prominent. Zirconium-based amorphous alloys not only have excellent mechanical properties, but also have excellent elasticity, which can greatly improve the service life of the hinge assembly. The above advantages make zirconium-based amorphous alloys an advantageous material for manufacturing components in hinges and hinge assemblies in various equipment and devices.

[0004] The hinge of a folding screen mobile phone made of zirconium-based amorphous alloy needs to be assembled and combined with other metal accessories during assembly to form a complete hinge assembly. In the prior art, the assembly method of the amorphous hinge in the hinge assembly often uses traditional assembly methods such as gluing and snapping. With the increasingly intelligent and lightweight design of modern terminal devices such as electronic products, the above-mentioned traditional assembly methods cannot meet the design requirements due to the excess space they occupy and the limited structural strength. How to develop a method for preparing amorphous alloy assemblies that saves assembly space and improves assembly strength can not only improve the assembly efficiency of amorphous alloy parts, but also enable the application of amorphous alloy parts to keep up with the development pace of modern terminal devices, which has a positive effect on the promotion and use of amorphous alloy materials. Summary of the invention

[0005] The purpose of the present invention is to provide an amorphous assembly and a preparation method thereof, aiming to solve the technical problems of large occupied space and low structural strength after the existing amorphous alloy parts are assembled with other assembly parts.

[0006] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows: The present invention provides an assembly containing an amorphous component, wherein the assembly comprises an amorphous component and an assembly component that are fixedly connected; The amorphous part is provided with a rivet post, the assembly part is provided with a rivet hole matched with the rivet post, the rivet post on the amorphous part is inserted into the rivet hole on the assembly part, and the rivet post on the amorphous part is hot-pressed and riveted to fix the amorphous part and the assembly part to form the assembly part containing the amorphous part; The amorphous part is a thin-walled part with a thickness in the range of 0.1 to 2 mm, and the assembly part is a metal component of a non-amorphous alloy, and the thickness of the assembly part is 0.1 to 5 mm.

[0007] In the prior art, the combination process of amorphous parts and other assembly parts often adopts physical assembly methods such as gluing and snapping. Although the above assembly process is simple, it occupies a specific design space and requires reserving assembly positions at the beginning of product design. For the current smart products with increasingly lighter and thinner designs, the above assembly process can no longer meet the needs of product design.

[0008] The technical solution provided by the present invention is based on actual needs, and utilizes the characteristics of amorphous parts and non-amorphous parts, and adopts a special hot press riveting method to rivet and fix the two. The assembly provided in the present invention is a thin-walled assembly. Amorphous parts exceeding 2 mm and / or assembly parts exceeding 5 mm (referring to either or both of the amorphous parts and assembly parts) need to increase the heat supply when performing fixed-point hot press riveting. The heat energy at the fixed point cannot be discharged rapidly, which will cause the microstructure of the amorphous part to crystallize, thereby causing the mechanical properties of the amorphous part to deteriorate. On the contrary, hot press riveting between thin-walled parts not only has a good fixed connection effect, but also has fast local heat dissipation, which is particularly suitable for the assembly of rotating shaft parts made of amorphous materials and other assembly parts.

[0009] Preferably, the overall height of the rivet post before riveting is 1.1 to 1.8 times the height of the riveting hole of the assembly part. The height of the rivet post is controlled to achieve riveting while taking up as little space as possible.

[0010] Preferably, the rivet post is cylindrical, the rivet hole is a circular through hole matched with the rivet post, and the rivet post forms a dome-shaped protrusion after hot-press riveting and protrudes from the surface of the assembly part. The above assembly method is more suitable for the assembly structure of thin-walled amorphous parts and multiple shaped assembly parts, such as the assembly between multiple assembly holes on an amorphous hinge and multiple assembly parts with different structures. This assembly method is more flexible.

[0011] Preferably, the rivet post is cylindrical, the rivet hole is an inverted conical through hole matched with the rivet post, and the rivet post is flush with the surface of the assembly part after hot-press riveting. The above assembly method is more suitable for compact assembly structures, such as when both the amorphous part and the assembly part are flat-plate assemblies, and this assembly method is more compact.

[0012] Preferably, the number of the amorphous parts is one or more, and the number of the assemblies is one or more, including the combination of one amorphous part and one assembling part, one amorphous part and multiple assembling parts, multiple amorphous parts and one assembling part, and multiple amorphous parts and multiple assembling parts.

[0013] The present invention also provides a method for preparing an assembly containing amorphous materials, comprising the following steps: S1: Prefabricate a thin-walled part made of zirconium-based amorphous alloy, the thin-walled part is a structural part with a thickness in the range of 0.1-2mm, and a rivet post is provided on the amorphous part; prefabricate an assembly part, the assembly part is a metal component of a non-amorphous alloy, the thickness of the assembly part is 0.1-5mm, and a rivet hole is provided on the assembly part that matches the rivet post of the amorphous part, and the rivet post and the rivet hole are clearance-matched; the overall height of the rivet post before riveting is 1.1-1.8 times the height of the rivet hole of the assembly part; S2: pre-assembling the amorphous component and the assembly component by inserting the rivet stud into the rivet hole; S3: placing the preassembled amorphous part and the assembly part into a hot press riveting jig, fixing the preassembled amorphous part and the assembly part, and then hot press riveting the two using the compression rivet head of the hot press riveting jig to fix the amorphous part and the assembly part to form the assembly part containing the amorphous.

[0014] The preparation method of the assembly containing amorphous provided in the present invention can effectively assemble the amorphous thin-walled parts with other metal assembly parts. The two can be fixedly connected by setting the rivet studs on the amorphous parts and the rivet holes on the assembly parts. The clearance fit between the rivet studs and the rivet holes makes the assembly pretreatment simple and easy, which is convenient for operation in the engineering mass production process. The combination of the two by hot press riveting is not only simple and fast, but also does not introduce other bonding materials, which is more environmentally friendly.

[0015] The assembly preparation method of the present invention is not only applicable to the combination of one amorphous part and one assembly part, but also applicable to the combination of one amorphous part and multiple assembly parts, the combination of multiple amorphous parts and one assembly part, and the combination of multiple amorphous parts and multiple assembly parts. By using the preparation method of the present invention, as long as reasonable design is performed in the steps of prefabricating amorphous parts and assembly parts, different combination effects can be achieved and different assemblies can be prepared.

[0016] Preferably, the assembly part described in S1 is an iron-based powder metallurgy part or a titanium-based powder metallurgy part; the tolerance of the clearance fit between the rivet stud described in S1 and the rivet hole described is 0.01~0.03mm. The technical method of the present invention is defined as assembling amorphous parts and non-amorphous metal components. On the one hand, in the prior art, amorphous parts and powder metallurgy parts are often used for assembly and compounding so that the prepared product has the advantages of both materials. On the other hand, powder metallurgy parts are not sensitive to instantaneous heat energy during the riveting process, and the process of the present invention does not affect the performance of the assembly part. In addition, the composite assembly between amorphous parts often adopts the method of overall heating. In the actual manufacturing industry, due to the excellent molding ability of amorphous parts themselves, it is sufficient to manufacture special-shaped parts in one piece, and it is rare to use two amorphous parts to assemble into a combination.

[0017] Preferably, in S3, the hot-press riveting jig comprises a base and the press-fit rivet head, the base is provided with a sample slot for accommodating the pre-assembled part, and the press-fit rivet head is provided with a riveting structure adapted to the amorphous part rivet column; The preassembled amorphous component and the assembly component are fixed in the sample slot, and then the preassembled component is pressed by a pressing rivet head, and the pressing rivet head is electrically heated at the same time, so as to perform hot pressing on the rivet column to deform the rivet column; after the rivet column is deformed, the heating is stopped, and the deformed rivet column is shaped, thereby completing the hot pressing riveting of the amorphous component and the assembly component.

[0018] Preferably, in S3, the press-fit rivet head comprises a press-fit portion, a first electrode head and a second electrode head, the first electrode head and the second electrode head are symmetrical in shape and structure and are respectively located at two ends of the press-fit portion; the first electrode head and the second electrode head are both provided with a power connection hole and a structure connection hole, the power connection hole is connected to a power source, and the structure connection hole is connected to a pressure device; The cross-section of the pressing part and the first electrode head and the second electrode head at both ends at the pressing surface is generally I-shaped, and the cross-sectional area of ​​the single-side electrode head at the pressing surface is 10 to 12 times the cross-sectional area of ​​the pressing part at the pressing surface.

[0019] The assembly preparation method provided by the present invention is based on actual needs, and utilizes the characteristics of amorphous parts and non-amorphous parts, and adopts a special hot-press riveting method to rivet and fix the two. The technical solution in the present invention utilizes the principle that when current passes through an object with resistance, it generates heat, and the greater the resistance, the greater the heat generated. The press-fit rivet head is designed to be a "I"-shaped fixture with large ends and a small middle, and the cross-sectional area difference between the press-fit part and the electrode heads at both ends is huge. When the current passes through the relatively narrow press-fit part in the middle, due to the small cross-sectional area of ​​the press-fit part, its resistance is larger than that of the two ends, thereby generating high temperature in the press-fit part. As long as the set voltage is controlled well, the press-fit part can quickly rise to the set temperature in a short time of power-on, that is, reach the temperature of the supercooled liquid phase region of the zirconium-based amorphous riveted column, and then utilize the characteristics of zirconium-based amorphous easy plastic deformation in the supercooled liquid phase region and no performance degradation under the conditions of rapid heating and rapid cooling, the riveted column is pressed and deformed to complete the preparation of the assembly.

[0020] Preferably, the pressing part is provided with a riveting structure, the riveting structure is adapted to the amorphous part rivet column, and the shape of the riveting structure includes a dome shape and a flat plate shape. The riveting structure of the pressing part can be changed as the design requirements change.

[0021] Preferably, the compression rivet head is made of tungsten or tungsten alloy, which generates high heat and is not easily deformed.

[0022] The assembly containing amorphous provided in the present invention does not occupy extra product design space, meets the demand for lightweight and thin composite products, and the assembly is simple to assemble and has high bonding strength. The preparation method of the assembly containing amorphous provided in the present invention solves the technical problems of large occupied space and low structural strength after the existing amorphous alloy parts are assembled with other assembly parts. It adopts the principle of rapid heating through large resistance by large current, and rapidly heats, and utilizes the characteristics of zirconium-based amorphous softening and easy deformation in the supercooled liquid phase, and the unchanged performance after cooling, so as to realize the riveting combination of zirconium-based amorphous products and other material accessories. The preparation method is fast, reliable in quality, and suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the press-fit rivet head in the present invention; Figure 2 for Figure 1 A top view of Figure 3 It is a schematic diagram of the overall structure of the hot press riveting jig in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the base of the hot press riveting fixture in the present invention; Figure 5 for Figure 4 A top view of Figure 6It is a schematic diagram of the structure of the riveted joint of the assembly; Figure 7 for Figure 6 Schematic diagram of the structure after the middle assembly is riveted; Figure 8 It is a schematic diagram of the structure of another riveted joint of the assembly; Fig. 9 for Figure 8 Schematic diagram of the structure after the middle assembly is riveted; Description of Figure Numbers: 101, first electrode head; 102, second electrode head; 103, pressing part; 104, first connecting hole; 105, second connecting hole; 106, first electrode plug hole; 107, second electrode plug hole; 108, riveting structure; 201, base; 202, first boss group; 203, second boss group; 204, sample slot; 301, amorphous parts; 302, amorphous rivet studs; 401, assembly parts; 11, 21, amorphous parts; 12, 22, assembly parts; 13, 23, pressing parts. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and technical effect of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention is clearly and completely described. The embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. In conjunction with the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer; if the manufacturer of the reagents or instruments is not specified, they are all conventional products that can be purchased commercially.

[0025] In the description of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0026] In addition, unless the context clearly uses otherwise, the expression of the singular form of a word should be understood to include the plural form of the word. The term "includes" or "having" is intended to specify the existence of a feature, quantity, step, operation, element, part or combination thereof, but is not used to exclude the existence or possible addition of one or more other features, quantities, steps, operations, elements, parts or combinations thereof.

[0027] A method for preparing an assembly containing amorphous materials is provided in an embodiment of the present invention, and an assembly containing amorphous materials prepared by the method is provided.

[0028] Specifically, the embodiments of the present invention will be combined with the attached Figure 1 ~Attached Fig. 9 The present invention will describe the method for preparing an assembly containing an amorphous substance and the characteristics of the assembly.

[0029] The method for preparing the amorphous assembly provided in this embodiment uses the following main devices: Figures 1 to 5 As shown, a hot press riveting fixture is used to perform hot press riveting on amorphous parts and assembly parts.

[0030] The specific steps are as follows: S1, prefabricated zirconium-based amorphous alloy parts 301 and assembly parts 401.

[0031] The raw material composition of the zirconium-based amorphous alloy used in this embodiment is Zr 60 Al 15 Cu 10 Ni 10 Nb5 is made into a thin-walled structural part with a thickness of 0.5 mm and a length of 100 mm, and a rivet column 302 is provided in the middle position thereof. The above-mentioned zirconium-based amorphous alloy thin-walled structural part is integrally formed in a mold using a die-casting process.

[0032] The assembly part used in this embodiment is a 316L stainless steel powder metallurgy sheet part with a thickness of 3mm and a length of 25mm. A rivet hole matching the amorphous rivet column 302 is provided in the middle. The amorphous rivet column 302 and the rivet hole are clearance matched, and the matching tolerance is within the range of 0.01-0.03mm. The clearance match between the rivet column and the rivet hole makes the assembly pretreatment simple and easy, and is convenient for operation in the process of mass production of the project. The height of the amorphous rivet column 302 is 3.6mm.

[0033] In some other embodiments, the thickness of the zirconium-based amorphous alloy part is 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2.0mm, respectively.

[0034] In some other embodiments, the thickness of the assembly is 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2. 4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3 .8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm.

[0035] If the amorphous part and the assembly part are special-shaped components (non-uniform parts in the thickness direction), the "thickness" described in the present invention, that is, in the embodiments of the present invention, refers to the thickness of the amorphous part or the assembly part at the riveted joint.

[0036] In some other embodiments, the overall height of the rivet stud before riveting is 1.1 to 1.8 times the height of the rivet hole of the assembly part. If the rivet stud is too low, riveting cannot be achieved, and if it is too high, amorphous material will cause accumulation of the riveted joint, which will not only affect the riveting effect (the amorphous material cannot be completely deformed) but also make the riveted point too large to occupy space.

[0037] S2, pre-assembling the amorphous component 301 and the assembly component 401 by inserting the rivet stud 302 into the riveting hole.

[0038] S3, hot press riveting. The preassembled amorphous part 301 and the assembly part 401 are placed in a hot press riveting jig, and after the preassembled amorphous part and the assembly part are fixed, the two are hot press riveted by using a pure tungsten press rivet head of the hot press riveting jig, so that the amorphous part and the assembly part are fixedly connected to form the assembly containing the amorphous.

[0039] Specifically, the hot-press riveting jig used in this embodiment includes a base 201 and a press-fit rivet head. The base 201 is provided with a sample slot 204 for accommodating the preassembled part, and the press-fit rivet head is provided with a riveting structure 108 adapted to the amorphous rivet column 302. The preassembled amorphous part and the assembly part are fixed in the sample slot 204. The first and second boss groups 202 and 203 are respectively provided at the head and tail ends of the sample slot 204 for fixing and limiting the preassembled part. Then, the preassembled part is pressed by the press-fit rivet head, and the press-fit rivet head is electrically heated at the same time, so as to perform hot pressing on the rivet column 302 to deform the rivet column. After the rivet column is deformed, the heating is stopped, and the deformed rivet column is shaped, completing the hot-press riveting of the amorphous part 301 and the assembly part 401.

[0040] Furthermore, the press-fit rivet head includes a press-fit portion 103, a first electrode head 101 and a second electrode head 102. The first electrode head 101 and the second electrode head 102 are symmetrical in shape and structure and are respectively located at both ends of the press-fit portion 103. The first electrode head 101 and the second electrode head 102 are both provided with a power connection hole and a structure connection hole. The power connection hole is a first electrode socket 106 and a second electrode socket 107 respectively arranged at the ends of both sides of the press-fit rivet head. The two electrode sockets are respectively connected to the positive and negative poles of the external power supply to provide current for the press-fit rivet head. The structure connection hole is a first connection hole 104 and a second connection hole 105 respectively arranged at the two top ends of the press-fit rivet head. The two connection holes are respectively connected to an external pressure device to provide uniform auxiliary pressure for the press-fit rivet head.

[0041] The cross-section of the pressing part 103 and the first electrode head 101 and the second electrode head 102 at both ends at the pressing surface is generally I-shaped, and the cross-sectional area of ​​the single-side electrode head at the pressing surface is 10 to 12 times the cross-sectional area of ​​the pressing part at the pressing surface. In this way, after the two sides of the pressing part 103 are energized, the resistance at the middle pressing part 103 on the pressing surface is the largest and the heat is generated fastest, thereby generating high temperature at the riveting structure 108 of the pressing part 103 to press and deform the riveted column to complete the preparation of the assembly.

[0042] In the embodiment of the present invention, the rivet post 302 is cylindrical, and the riveting hole is a circular through hole adapted to the rivet post. After hot-press riveting, the rivet post 302 forms a dome-shaped protrusion that protrudes from the surface of the assembly. The riveting structure 108 provided on the pressing part is adapted to the amorphous rivet post 302 and is dome-shaped.

[0043] The specific riveting process of the embodiment of the present invention is as shown in the attached Figure 6 , 7 As shown in FIG. 1 , the amorphous rivet column is subjected to hot press riveting to form a dome-shaped riveted structure. Figure 6 As shown, the amorphous part 11 and the assembly part 12 are pre-assembled and then hot-pressed and riveted by the pressing part 13 to prepare the attached Figure 7 The above assembly method is more suitable for the assembly structure of thin-walled amorphous parts and multiple shaped assembly parts, such as the assembly between multiple assembly holes on an amorphous hinge and multiple assembly parts with different structures. This assembly method is more flexible.

[0044] In another embodiment, the rivet post is cylindrical, and the rivet hole is an inverted conical through hole adapted to the rivet post. Figure 8 As shown, the pressing part 23 is in the shape of a flat plate. After the amorphous part 21 and the assembly part 22 are pre-assembled, the pressing part 23 is used for hot-press riveting. After the hot-press riveting, the rivet column is flush with the surface of the assembly part, and the preparation is as shown in the attached figure. Fig. 9The above assembly method is more suitable for compact assembly structures, such as when both the amorphous parts and the assembly parts are flat-plate assemblies, and this assembly method is more compact.

[0045] In some other embodiments, the riveting structure of the pressing portion may be changed as design requirements change.

[0046] In some other embodiments, by designing the rivet studs and rivet holes on the amorphous parts and the assembly parts, not only one amorphous part is riveted to one assembly part, but also one amorphous part is riveted to multiple assembly parts, multiple amorphous parts are riveted to one assembly part, and multiple amorphous parts are riveted to multiple assembly parts. By using the preparation method of the present invention, as long as a reasonable design is made in the steps of prefabricating amorphous parts and assembly parts, different combination effects can be achieved and different assemblies can be prepared.

[0047] In some other embodiments, the assembly may also use titanium-based powder metallurgy parts to obtain the low density and light weight characteristics of titanium-based structural parts.

[0048] The technical method of the present invention is limited to assembling amorphous parts and non-amorphous metal components. On the one hand, in the prior art, amorphous parts and powder metallurgy parts are mostly used for assembly and compounding so that the prepared product has the advantages of both materials. On the other hand, powder metallurgy parts are not sensitive to instantaneous heat energy during the riveting process, and the process of the present invention does not affect the performance of the assembly parts.

[0049] The amorphous assembly prepared in the embodiment of the present invention includes a fixedly connected amorphous part and an assembly part, the amorphous part is provided with a rivet post, the assembly part is provided with a rivet hole matched with the rivet post, the rivet post on the amorphous part is inserted into the rivet hole on the assembly part, and the rivet post on the amorphous part is hot-pressed and riveted to fix the amorphous part and the assembly part to form the required assembly. In the assembly, the amorphous part is a thin-walled part with a thickness in the range of 0.1 to 2 mm, and the assembly part is a metal component of a non-amorphous alloy, and the thickness of the assembly part is 0.1 to 5 mm. The amorphous assembly provided in the present invention does not occupy additional redundant product design space, meets the demand for lightweight and thin composite products, and the assembly is simple to assemble and has high bonding strength.

[0050] It can be seen from the above embodiments that the preparation method of the assembly containing amorphous provided in the present invention solves the technical problems of large occupied space and low structural strength after the existing amorphous alloy parts are assembled with other assembly parts. It adopts the principle of rapid heating through large current through large resistance, and rapid heating is achieved. The characteristics of zirconium-based amorphous softening and easy deformation in the supercooled liquid phase region and unchanged performance after cooling are utilized to realize the riveting combination of zirconium-based amorphous products and other material accessories. The preparation method is fast, reliable in quality, and suitable for industrial production.

[0051] The technical solution provided by the present invention is based on actual needs, and utilizes the characteristics of amorphous parts and non-amorphous parts, and adopts a special hot-press riveting method to rivet and fix the two. The assembly provided in the present invention is a thin-walled assembly. Hot-press riveting between thin-walled parts not only has a good fixed connection effect, but also has fast local heat dissipation, and is particularly suitable for assembling rotating shaft parts made of amorphous materials with other assembly parts.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An assembly comprising an amorphous material, characterized in that: The assembly comprises an amorphous part and an assembly part which are fixedly connected; The amorphous part is provided with a rivet post, the assembly part is provided with a rivet hole matched with the rivet post, the rivet post on the amorphous part is inserted into the rivet hole on the assembly part, and the rivet post on the amorphous part is hot-pressed and riveted to fix the amorphous part and the assembly part to form the assembly part containing the amorphous part; The amorphous part is a thin-walled part with a thickness in the range of 0.1 to 2 mm, and the assembly part is a metal component of a non-amorphous alloy, and the thickness of the assembly part is 0.1 to 5 mm.

2. The assembly comprising amorphous material according to claim 1, characterized in that: The overall height of the rivet stud before riveting is 1.1 to 1.8 times the height of the riveting hole of the assembly part.

3. The assembly comprising amorphous material according to claim 2, characterized in that: The rivet stud is cylindrical, the rivet hole is a circular through hole matched with the rivet stud, and the rivet stud forms a dome-shaped protrusion and protrudes from the surface of the assembly after hot-press riveting; or, the rivet stud is cylindrical, the rivet hole is an inverted conical through hole matched with the rivet stud, and the rivet stud is flush with the surface of the assembly after hot-press riveting.

4. The amorphous assembly according to claim 2, characterized in that: The number of the amorphous parts is one or more, and the number of the assembly parts is one or more.

5. A method for preparing an assembly comprising an amorphous material, characterized in that: It includes the following steps: S1: Prefabricate a thin-walled part made of zirconium-based amorphous alloy, the thin-walled part is a structural part with a thickness in the range of 0.1-2mm, and a rivet post is provided on the amorphous part; prefabricate an assembly part, the assembly part is a metal component of a non-amorphous alloy, the thickness of the assembly part is 0.1-5mm, and a rivet hole is provided on the assembly part that matches the rivet post of the amorphous part, and the rivet post and the rivet hole are clearance-matched; the overall height of the rivet post before riveting is 1.1-1.8 times the height of the rivet hole of the assembly part; S2: pre-assembling the amorphous component and the assembly component by inserting the rivet stud into the rivet hole; S3: placing the preassembled amorphous part and the assembly part into a hot press riveting jig, fixing the preassembled amorphous part and the assembly part, and then hot press riveting the two using the compression rivet head of the hot press riveting jig to fix the amorphous part and the assembly part to form the assembly part containing the amorphous.

6. The method for preparing an assembly containing amorphous materials according to claim 5, characterized in that: The assembly part described in S1 is an iron-based powder metallurgy part or a titanium-based powder metallurgy part; the tolerance of the clearance fit between the rivet stud and the rivet hole described in S1 is 0.01-0.03 mm.

7. The method for preparing an assembly containing amorphous materials according to claim 5, characterized in that: In S3, the hot-press riveting jig comprises a base and the press-fit rivet head, the base is provided with a sample slot for accommodating the pre-assembled part, and the press-fit rivet head is provided with a riveting structure adapted to the amorphous part rivet column; The preassembled amorphous component and the assembly component are fixed in the sample slot, and then the preassembled component is pressed by a pressing rivet head, and the pressing rivet head is electrically heated at the same time, so as to perform hot pressing on the rivet column to deform the rivet column; after the rivet column is deformed, the heating is stopped, and the deformed rivet column is shaped, thereby completing the hot pressing riveting of the amorphous component and the assembly component.

8. The method for preparing an assembly containing amorphous materials according to claim 7, characterized in that: In S3, the press-fit rivet head comprises a press-fit portion, a first electrode head and a second electrode head, the first electrode head and the second electrode head are symmetrical in shape and structure and are respectively located at two ends of the press-fit portion; the first electrode head and the second electrode head are both provided with a power connection hole and a structure connection hole, the power connection hole is connected to a power source, and the structure connection hole is connected to a pressure device; The cross-section of the pressing part and the first electrode head and the second electrode head at both ends at the pressing surface is generally I-shaped, and the cross-sectional area of ​​the single-side electrode head at the pressing surface is 10 to 12 times the cross-sectional area of ​​the pressing part at the pressing surface.

9. The method for preparing an assembly containing amorphous materials according to claim 8, characterized in that: The pressing part is provided with a riveting structure, which is matched with the amorphous rivet column, and the shape of the riveting structure includes a round cap shape and a flat plate shape.

10. The method for preparing an assembly containing amorphous materials according to claim 9, characterized in that: The press-fit rivet head is made of tungsten or tungsten alloy.

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