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A kind of semi-hard magnetic material and preparation method thereof

A semi-hard magnetic, mass percentage technology, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of low utilization rate and high cost of cold rolling process materials, and achieve the effect of avoiding magnetic flux leakage

Inactive Publication Date: 2011-12-21
江苏科晶智能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem of low utilization rate and high cost of existing cold rolling process materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1) Put iron, nickel, boron, and silicon into the steelmaking furnace. The mass percentages of iron, nickel, boron, and silicon are 55%, 32%, 8%, and 5%. The steelmaking temperature is 2700°C, and the melting temperature is 1.5 hours, the tapping temperature is 2000°C.

[0016] 2) The molten alloy obtained in step 1) is sprayed, the speed of the spray roller is 700 rpm, and the molten alloy is sprayed on the circumferential surface of the spray roller rotating at a high speed, protected by argon until the alloy on the surface of the roller is solidified to form an alloy sheet Finally, the alloy sheet is removed from the surface of the roller.

Embodiment 2

[0018] 1) Put iron, nickel, boron, and silicon into a steelmaking furnace. The mass percentages of iron, nickel, boron, and silicon are 65%, 22%, 7%, and 6%, and the steelmaking temperature is 2800°C. hours, the tapping temperature is 2100°C.

[0019] 2) Spray the molten alloy obtained in step 1), spray the molten alloy at a speed of 800 rpm on the spray roller, and spray the molten alloy on the circumferential surface of the spray roller rotating at a high speed, under argon protection, until the alloy on the surface of the roller is solidified to form an alloy sheet Finally, the alloy sheet is removed from the surface of the roller.

Embodiment 3

[0021] 1) Put iron, nickel, boron, and silicon into the steelmaking furnace. The mass percentages of iron, nickel, boron, and silicon are 62%, 28%, 5%, and 5%. The steelmaking temperature is 2900°C, and the melting temperature is 2.5 hours, the tapping temperature is 2500°C.

[0022] 2) The molten alloy obtained in step 1) is sprayed, the speed of the spray roll is 900 rpm, and the molten alloy is sprayed on the circumferential surface of the spray roll rotating at a high speed, protected by argon until the alloy on the surface of the roll is solidified to form an alloy sheet Finally, the alloy sheet is removed from the surface of the roller.

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PUM

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Abstract

The invention relates to a semi-hard magnetic material, which contains iron, nickel, boron and silicon, and the mass percentages of each element are 55-65%, 22-32%, 1-8% and 1-8% respectively. A method for preparing a semi-hard magnetic material: 1) putting iron, nickel, boron, and silicon into a steelmaking furnace, the mass percentages of iron, nickel, boron, and silicon being 55-65%, 22-32%, 1-8%, 1-8%, steelmaking temperature 2700-3200°C, smelting for 1.5-2.5 hours, tapping temperature 2000-2500°C; 2) Spraying the molten alloy obtained in step 1), the speed of the spraying roller 700-900 rpm, spray molten alloy on the circumferential surface of the high-speed rotating belt spray roller, protected by argon, until the alloy on the surface of the roller is solidified to form an alloy sheet, and the alloy sheet is removed from the surface of the roller. The semi-hard magnetic material prepared by the method of the invention has high material utilization rate and low cost.

Description

technical field [0001] The invention relates to a semi-hard magnetic material and a preparation method thereof. Background technique [0002] With the development of science and technology, the application of magnetic materials has penetrated into all aspects of the national economy and defense industry. Super-speed motors, computer embroidery machines, magnetic flip cards, anti-theft devices for supermarkets, magnetic markers, counters, signal generators and other equipment all use semi-hard magnetic components. [0003] Semi-hard magnetic materials are magnetic materials whose magnetic properties are between soft magnetic and hard magnetic. The general coercive force is 1-20 kiloampere / meter (kA / m), has good plasticity, and can be cold-rolled or wire-drawn to be made into thin plates and thin wires. [0004] Semi-hard magnetic materials used for magnetic markers usually need to be made into thin plates. Commonly used semi-hard magnetic materials include iron-cobalt-vanad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/047C22C33/04
Inventor 白文丽朱葛俊
Owner 江苏科晶智能科技股份有限公司
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