Preparation method and preparation device of amorphous alloy fine part based on vacuum suction casting

Abstract

The invention discloses a preparation method of an amorphous alloy fine part. The preparation method of the amorphous alloy fine part comprises the following steps: various types of pure metal needed by amorphous alloy is prepared according to a proportion to form raw materials of the amorphous alloy and is arranged in a vacuum melting cavity of a vacuum arc suction casting furnace; a silicon mold used for preparing the amorphous alloy fine part is prepared and arranged into a copper mold, an inner cavity of the copper mold is a through hole, and the copper mold is arranged in a lower cavity of the vacuum arc suction casting furnace; the vacuum melting cavity is pumped to be vacuum and is filled with protective gas, the raw materials of the amorphous alloy are melted, and melted amorphous alloy liquid is sucked into the silicone mold from the vacuum melting cavity through the through hole by lowering the pressure inside the copper mold; and the amorphous alloy fine part is obtained after demolding. The invention further discloses a preparation device of the amorphous alloy fine part. By means of vacuum suction casting, the defects that the amorphous alloy melt is poor in fluidity and difficult in mold filling are overcome, and the prepared amorphous alloy fine part is high in quality, and free of the defects like air holes.

Description

technical field [0001] The invention belongs to the technical field of preparation of amorphous alloy materials, and in particular relates to a method and device for preparing amorphous alloy fine parts. Background technique [0002] Amorphous alloys are a major discovery in the field of materials in the 20th century. The atomic arrangement inside the material is a long-range disordered short-range order structure, without defects such as dislocations and grain boundaries. This unique structure makes amorphous alloy materials have many excellent properties, such as high strength, hardness, wear resistance, corrosion resistance, excellent soft magnetic properties, etc., and is widely used in military, micro / nano manufacturing, sports equipment , optical communications, optical integration, lasers, new solar cells, high-efficiency magnetic and power transmission materials and other fields. Amorphous alloys are promising new structural materials and functional materials, which...

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Problems solved by technology

Hot press forming to make parts first needs to make the original material into an amorphous alloy, and then hot press the amorphous alloy. This method requires two steps, both of which are indispensable. It takes a lot of time and energy, and the cost is high. The pressing step may cause its secondary oxidation, and its engineering value is limited and cannot be fully utilized

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