Method and device for manufacturing metal amorphous wires

Abstract

The invention relates to a method and a device for manufacturing metal amorphous wires, belonging to the field of the direct forming and the approximate forming of rapid amorphous wire solidification. The device comprises a vacuum system, a smelting system, a drawing system and a master alloy feeding mechanism and is technologically characterized in that alloy well melted according to nominal compositions is made into a preformed rod with the diameter of 6mm to 10mm; a metal roller is processed into an edge-form excircle with a certain angle, and the perform rod is put into a BN crucible to be melted into a protrusion in a steamed bread shape; and a lifting device is utilized at a suitable temperature to slowly lift alloy liquid until rise to the top and contact with the metal roller so as to dip out a melting body layer with a certain thickness under the integrative actions of the momentum transfer and the alloy physical properties and round the melting body layer into wires under the actions of the gravity, the surface tension, the solidification contraction, and the like. The metal amorphous wires produced by the method and the device have the advantages of high de-crystallization degree, good roundness and evenness, and the like, are particularly suitable for production with ferromagnetic wire materials, such as a Co base, a Fe base, and the like and can also be used for the direct forming and the approximate forming of active metal wires, such as a Ti base, an Al base, and the like.

Description

technical field [0001] The invention belongs to direct forming and near-net forming technology for preparing amorphous wire, and mainly provides a method and device for preparing amorphous metal wire. Background technique [0002] It has been nearly 50 years since the discovery of amorphous alloys. During this period, many scholars and experts have carried out a large number of basic research, preparation technology research and application development research, and it has become a branch of material science with rapid development. Amorphous metal wire is a new type of functional material after amorphous thin strips. It has the high strength, high toughness, corrosion resistance and excellent soft magnetic properties of amorphous metals. At the same time, as a round cross-section wire, it has its unique Electromagnetic properties. The electromagnetic properties of Fe-based and Co-based amorphous wires are mainly manifested in high resistivity, high magnetoelasticity, large ...

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Problems solved by technology

[0003] The existing preparation methods of amorphous metal filaments include inner circle water spinning method and glass coating method. Due to the limitation of cooling medium and preparation method, only some alloys with strong glass forming ability and specific composition can be prepared.

The cooling ability of the inner circle water spinning method is poor, and the cooling liquid is easy to react with the high-temperature molten alloy, so it is not easy to use this method for some easily oxidized Ti, Al and other alloys; the glass coating method requires that the melting temperature of the alloy should be equal to the softening temperature of the glass Consistent, good wettability is required between the alloy and the glass, and the universality is poor

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