Amorphous alloy member cast forming device and process

Abstract

Provided is a device for casting forming of amorphous alloy components. The device comprises an injection system, an alloy smelting system, a raw material feeding system, a mould system, a vacuum system and a protective atmosphere system. The vacuum system comprises a vacuum tank (6). The protective atmosphere system comprises a gas cylinder (1) for a protective atmosphere. The vacuum tank or the gas cylinder for a protective atmosphere is provided to effectively realize the acquisition of a vacuum or a protective atmosphere with a positive pressure in the forming process so as to achieve the casting forming of the amorphous alloy components under the protection of the vacuum and the protective atmosphere with a positive pressure. The mould is provided with an exhaust port to prevent the formation of micro shrinkage cavities on the surface in the process of forming the alloy components. Also provided is a process for the casting forming of the amorphous alloy components. The device and process substantially reduce the space of the vacuum or the protective atmosphere with a positive pressure, and can improve the quality of the amorphous alloy components, save on cost and improve the production efficiency.

Description

technical field [0001] The invention relates to the technical field of amorphous alloy forming, in particular to an amorphous alloy component casting forming equipment and process. Background technique [0002] Due to its unique long-range disordered and short-range ordered atomic arrangement structure, bulk amorphous alloys exhibit a series of excellent physical, chemical and mechanical properties, such as high strength, high elasticity, high fracture toughness, high specific strength, Superplasticity, high corrosion resistance, outstanding magnetic properties, excellent formability, etc., are more and more widely used in aviation, aerospace and civil fields. At present, the most successful performance of amorphous alloy application is its outstanding soft magnetic properties, which has made amazing progress and great benefits. Small motors and transformers using amorphous alloys as magnetic components have achieved initial commercial success. The high elasticity of Zr-ba...

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Problems solved by technology

Among them, U.S. patents US6021840, US6070643 and Chinese patent CN102527982A report die-casting equipment for amorphous alloy workpieces. In these technologies, alloy melting and injection cylinder are two independent working units, both of which are placed in a larger vacuum chamber In the chamber and the chamber protected by the protective atmosphere, when all the actions of each molding are completed, the vacuum of the main chamber must be broken, or a large amount of gas will be wasted, which will lead to the extension of each working cycle of the amorphous alloy workpiece and reduction in production efficiency

In addition, in order to realize the molding under vacuum conditions, the mold adds a sealing ring, which leads to no vent holes around the mold cavity during the filling process, making it easy to form air holes or shrinkage cavities on the surface of the amorphous alloy component

In the reported technologies, the vacuum chamber or protective atmosphere chamber needs to be evacuated for a period of time, or filled with gas with a certain pressure, which leads to a decrease in the forming efficiency of amorphous alloy components

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