Method and device for manufacturing metal amorphous wires

A technology of amorphous wire and metal, which is applied in the field of producing amorphous metal wire, can solve the problems of poor cooling capacity and poor universality of wire making, and achieve the effects of short production process, energy saving and high roundness

Inactive Publication Date: 2009-09-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 liq

Method used

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  • Method and device for manufacturing metal amorphous wires
  • Method and device for manufacturing metal amorphous wires
  • Method and device for manufacturing metal amorphous wires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The metal roller is made of copper, with a diameter of 160mm; the shape of the induction coil is incense-like, and the number of turns is 3. The specific steps are:

[0032] (1) Co, Fe metals and Si, B crystals with a purity greater than 99.99% are classified according to Co 68.15 Fe 4.35 Si 12.25 B 15.25 Nominal composition ratio, smelted into an alloy rod 11 with a diameter of 8 mm and a length of 20 mm.

[0033] (2) Put the fused preform 11 into the BN crucible 13, adjust the position of the preform 11 through the servo feed motor 17, and the top of the preform 11 is 3mm away from the bottom tip of the copper wheel 10.

[0034] (3) Start the mechanical pump 6 to evacuate the entire furnace cavity 1, and then start the molecular pump 8 after reaching 1.0Pa, and the vacuum degree reaches 6.6×10 -3 After Pa, the molecular pump butterfly valve 7 is closed, and the gas filling valve 3 is filled with high-purity argon gas with a purity of 99.99% to -0.5Pa.

[0035] (...

Embodiment 2

[0040] The alloy composition is Fe 73.5 Si 13.5 B 9 Nb 3 Cu 1 , the rolling speed of the roller is selected as 10m / min, the feeding speed of the master alloy is 200μm / s, and the circular cross-section amorphous metal wire with a diameter of about 150μm can be obtained.

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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 ...

Claims

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Application Information

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IPC IPC(8): C22C45/00B22D18/06
Inventor 孙剑飞邢大伟曹福洋王欢张伦勇张树玲
Owner HARBIN INST OF TECH
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