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A method for preparing amorphous alloy thin strip by conical single-roll rapid quenching

A technology of amorphous alloy and thin strip, which is applied in the field of disc-type single-roll quick quenching method, and can solve problems such as air bubbles, difficulty in forming strips, and thin strip Rayleigh defects

Inactive Publication Date: 2016-09-28
河北聚鑫腾达五金工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to provide a new method of throwing strips, which overcomes the problems in the prior art, that is, solves the splashing of liquid droplets of the fast-setting thin strips in the single-roller fast-setting thin strip method, the difficulty of forming strips, and the existence of thin strips. To avoid defects, bubbles and other problems, prepare a rapidly quenched amorphous alloy thin strip with thinner size, higher surface finish and better performance

Method used

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  • A method for preparing amorphous alloy thin strip by conical single-roll rapid quenching
  • A method for preparing amorphous alloy thin strip by conical single-roll rapid quenching
  • A method for preparing amorphous alloy thin strip by conical single-roll rapid quenching

Examples

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Embodiment 1

[0051] A method for preparing a rapidly quenched amorphous alloy thin strip includes batching, smelting, secondary smelting, spraying, and collecting.

[0052] Using 99.5% metal samarium, industrial pure iron, metal cobalt and metal zirconium as raw materials, the medium frequency vacuum induction melting furnace is used for melting. Before melting, the vacuum chamber is evacuated first, and then high-purity argon is used as the protective gas to avoid alloy oxidation. . The melting temperature was 1600°C. The secondary melting is carried out in the induction ladle, and the spray pressure is established in the nozzle package, and the spray pressure is 0.05Mpa. The protective atmosphere pressure is 0.01Mpa.

[0053] A conical cooling roller is prepared with molybdenum, the angle between the conical slope surface and the central axis is 80°, and the inside of the conical cooling roller is cooled by circulating water. The diameter of the conical cooling roll is 400mm, and the ...

Embodiment 2

[0060] The conical fast-setting thin belt method adopted in this example, the prepared Sm 1.0 Zr 0.3 Fe 8.1 Co 0.6 Fast-setting thin belt, the difference is that the angle between the conical slope and the central axis is 45°, and other parameters are as in Example 1. Obtain a thin strip with a thickness of 18-19 μm and a Sm with a surface roughness of less than 0.3 μm 1.0 Zr 0.3 Fe 8.1 Co 0.6 Fast-setting thin belt Fast-setting thin belt, there is no splash phenomenon during the stripping process. There is no a-Fe soft magnetic phase in the alloy, and Sm is formed by grinding and nitriding 1.0 Zr 0.3 Fe 8.1 Co 0.6 N x , after the bonded magnet is made, the magnetic property is B r =0.97T, (BH) max =22.3MGOe.

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Abstract

The invention discloses a method for preparing an amorphous alloy thin strip through quenching conical single roller quickly and belongs to the technical field of alloy thin strip preparation. According to the method, a conical roll wheel is adopted, and melt is sprayed to a conical inclined slope face rotating around a conical central shaft and is made to form an included angle with a contact face from being perpendicular to the contact face due to the function of centrifugal force. On the edge of the conical inclined slope face, the amorphous alloy thin strip cools itself, contracts and comes off a roll wheel by itself under the action of centrifugal force. The thin strip prepared through the method in thinner is size, higher in surface smoothness, and better in performance.

Description

technical field [0001] The invention belongs to the technical field of alloy thin strip preparation, and relates to a novel single-roller stripping method to solve the problems of splashing droplets and difficulty in stripping during stripping, in particular to a disc-type single-roller rapid quenching method. technical background [0002] Single roll quick quenching method, also known as melt chill roll spinning method, continuous casting thin strip method. A method of producing amorphous ribbons invented by Bedell, such as figure 1 and figure 2 shown. The molten metal is sprayed on the surface of the high-speed rotating cooling roll and spreads under the action of gravity and wetting to form a molten pool; the interface layer of the molten pool in contact with the cooling roll is quenched and solidified, and continues to cool with the cooling roll to form a thin metal strip; The metal strip itself shrinks and leaves the rim surface of the roller under the action of cen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06
Inventor 王波朱晓岗严辉李耳王如志张铭宋雪梅侯育冬朱满康刘晶冰汪浩
Owner 河北聚鑫腾达五金工具有限公司
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