Composite component containing amorphous alloy and preparation method of composite component

Abstract

The invention discloses a composite component containing an amorphous alloy. The composite component comprises an amorphous alloy prefabricated assembly and a low melting point assembly. The amorphousalloy prefabricated assembly comprises one or more amorphous alloy prefabricated parts, and the low melting point assembly is a combination part comprising a plurality of low melting point materials;the low melting point materials are polymer materials or metal materials with the melting point being lower than 800 DEG C; and the thickness of each amorphous alloy prefabricated part is 0.1-6 mm. The prefabricated assembly with the specific shape is prefabricated through the characteristics that the amorphous alloy has high strength and can be used for forming a complex structure, then the lowmelting point assembly is injected into a mould to be combined with the prefabricated amorphous alloy to form and prepare the composite component, the composite component simultaneously has the characteristics of high strength of the amorphous alloy and high plasticity of the low melting point assembly, thus the prepared composite component can still have sufficient strength and impact resistanceperformance at the weak position of the significantly-thinned component or the component of a special-shaped structure, and meanwhile, the overall weight of the component can also be decreased.

Description

technical field [0001] The invention belongs to the field of metal composite materials, and in particular relates to a composite member containing an amorphous alloy and a preparation method thereof. Background technique [0002] Structural parts in the existing technology tend to be more and more lightweight. For example, in electronic products, their design is getting smaller and smaller, and their functions are more concentrated. As a structural part, it must meet the functions of connecting, fixing and supporting in the product. , but also meet the index requirements such as strength and impact performance, and at the same time, it must be light and thin and have a good appearance effect. Existing single materials are often difficult to meet all the above requirements. For example, plastic materials, although light and thin, have low strength, appearance and use feel, which are not as good as metal materials. Commonly used metal materials, such as stainless steel, have h...

AI Technical Summary

Problems solved by technology

Conventional bonding methods include welding, bonding, etc. However, in the welding process, the secondary heat effect generated is likely to cause the crystallization of the amorphous alloy and the embrittlement of the weld, thereby affecting the bonding performance; in the bonding process, the pretreatment process The requirements for the surface roughness and cleanliness of the materials to be connected are high, and an interface adhesive must be used, which not only increases the complexity of the process, but also the strength and firmness of the bond are limited by the adhesive. The failure speed of the lower adhesive is accelerated, and it is easy to age and break

There is also a method of using a mold to shape the two, but the method of mold processing is selective to the composite material and is not suitable for all materials, and the amorphous alloy has good fluidity, and the overall system has high requirements for temperature control. The composite components made of the advanced mold system not only have weak bonding force at the junction, but also have low density of the amorphous alloy, which affects the dimensional stability of the overall composite component and reduces the strength of the composite component.

In the prior art, there are also amorphous alloy composite component forming methods that use various stages of temperature rise and then compound, but they have not been widely used due to problems such as high processing costs and high failure risks.

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