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Iron-chromium-cobalt permanent magnetic alloy compounding vanadium and tungsten and deformation processing technology thereof

A permanent magnet alloy, deformation processing technology, used in metal processing equipment, magnetic materials, electrical components and other directions, to achieve good machinability, reduce solid solution temperature, reduce the effect of cobalt content

Inactive Publication Date: 2008-10-15
天津冶金集团天材科技发展有限公司
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Problems solved by technology

[0008] The problem to be solved by the present invention is to overcome the above-mentioned defects in the existing technology, and provide a ferrochrome-cobalt permanent magnet alloy compounded with silicon and zirconium elements and its deformation processing technology and deformation processing technology

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  • Iron-chromium-cobalt permanent magnetic alloy compounding vanadium and tungsten and deformation processing technology thereof
  • Iron-chromium-cobalt permanent magnetic alloy compounding vanadium and tungsten and deformation processing technology thereof
  • Iron-chromium-cobalt permanent magnetic alloy compounding vanadium and tungsten and deformation processing technology thereof

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Embodiment Construction

[0070] The specific implementation, composition, features and effects provided by the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0071] See Figure 2-3 , a Fe-23Cr-15Co-Si-Zr iron-chromium-cobalt permanent magnet alloy compounded with silicon and zirconium elements, its weight percentage composition is: chromium (Cr) 22-27%, cobalt (Co) 10-16%, silicon (Si) 0.8%-1%, zirconium (Zr) 0.2%-0.8%, the rest is iron and unavoidable impurities;

[0072] The preferred composition weight percentage is: chromium (Cr) 23.1%, cobalt (Co) 14.9%, Si (silicon) 0.98% Zr (zirconium) 0.71%, the rest are iron and unavoidable impurities;

[0073] Since the main component of the Fe-23Cr-15Co alloy is iron (Fe), adding body-centered cubic structural elements silicon and zirconium can expand the α phase region of iron, and the α phase is more stable, thereby effectively reducing the solid solution of the material. temp...

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Abstract

The invention discloses a FeCrCo permanent magnet alloy compounding silicon and zirconium elements and a deformation processing technology thereof, which belongs to the FeCrCo permanent magnet alloy material field. The invention especially relates to a FeCrCo alloy which reduces cobalt content and improves processability and a deformation processing method thereof. The compositions in percentage by weight of the FeCrCo alloy are: 22 to 27 percent of Cr, 10 to 16 percent of Co, 0.8 to 1 percent of Si, 0.2 to 0.8 percent of Zr, the balance being Fe and inevitable impurities. The deformation processing technology of the alloy comprises smelting process, forging process, hot rolling process, pickling process, cold working process and magnetic property treating process. The FeCrCo alloy and the method have the advantages of effectively reducing the cobalt content and the material cost, and improving the magnetic property and machining property of the alloy material; the reasonable arrangement of the processing sequences provided by the invention further improves the magnetic property of the alloy and provides a better method for the deformation processing of the high magnetic property FeCrCo permanent magnet alloy material.

Description

technical field [0001] This case belongs to the field of iron-chromium-cobalt permanent magnetic alloy materials, and in particular involves iron-chromium-cobalt alloys with reduced cobalt content and improved processing performance and their deformation processing methods. Background technique [0002] With the development of product diversification in the electromechanical industry and information industry, deformation processing of high-performance magnetic materials is an urgent problem to be solved. [0003] The permanent magnetic alloy materials widely used in the market mainly include cast AlNiCo, ferrite, rare earth, and NdFeB. These materials are produced by casting or powder metallurgy. Although they have high magnetic properties, they have poor mechanical properties and are not feasible Machinability, with various defects of casting or powder metallurgy, cannot manufacture slender, thin, complex-shaped, and dimensionally accurate permanent magnet components. [0...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/30H01F1/047B21J5/00B21B1/22C23G1/08B23P17/00B21B37/74B21B37/16C21D1/00
Inventor 于庆莲李文芳
Owner 天津冶金集团天材科技发展有限公司
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