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Method for preparing specific squareness ratio nanocrystalline soft magnetic material without magnetic field treatment

A nanocrystalline soft magnetic and magnetic field processing technology, which is applied in the field of nanocrystalline soft magnetic materials to obtain a special square ratio, can solve problems such as numerous processes, increased costs, and complex magnetic field processing equipment, and achieve process technology optimization, reduce procedures, Eliminates the effect of magnetic field loading devices

Inactive Publication Date: 2005-06-01
NO 52 INST OF CHINA NORTH IND GRP CORP
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Problems solved by technology

Its fatal flaw is: the magnetic field treatment equipment is complex, including magnetic field generating device, heating device, atmosphere control, etc., with various processes and increased cost, which is several times the cost of samples without magnetic field treatment

Method used

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Embodiment Construction

[0016] The specific embodiment of the present invention is: a method for obtaining special square ratio nanocrystalline soft magnetic materials without magnetic field treatment, and its composition includes industrial pure iron Fe, electrolytic copper Cu, metal niobium Nb, metal vanadium V, crystalline silicon Si and boron-iron alloy B, each element is approved according to the atomic ratio as follows:

[0017] Fe 76.5-x-y Cu 1 Nb x V y Si z B 9

[0018] Where 0

[0019] And must meet: (76.5-x-y)+1+X+Y+Z+9=100

[0020] The element Cu in the formulation of ingredients is the core of amorphous crystallization, which is conducive to the formation of finer grains. Nb has the function of inhibiting grain growth in the process of amorphous crystallization, and the adjustment of Si and B content will further improve and perfect the comprehensive soft magnetic properties of the alloy, so that the brittleness of the new nanocrystalline soft magnetic alloy mat...

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Abstract

The present invention relates to method of no-magnetic field treating process to obtaining nanometer crystal soft magnetic material with special squareness ratio. The material has component of Fe76.5-x-yCu1NbxVySizB9, where x is 0-5, y is 0-7 and z is 0-20; and is prepared through vacuum inducing furnace smelting to obtain mother alloy, single-roller quick quenching process to prepare non-crystal alloy belt, winding in winding machine, and crystallizing to prepare nanometer crystal alloy. The present invention prepares medium and high squareness ratio material and medium and low squareness ratio material directly, needs no magnetic field apparatus, and has less preparing steps and low cost, and the prepared material has low loss and high magnetic permeability.

Description

technical field [0001] The invention relates to a method for preparing a nanocrystalline soft magnetic material, in particular to a method for obtaining a nanocrystalline soft magnetic material with a special rectangular ratio (Br / Bs) without magnetic field treatment. Background technique [0002] Compared with traditional soft magnetic materials, nanocrystalline soft magnetic materials have higher soft magnetic properties, and are widely used in the manufacture of devices in the electronics and power industries, especially to meet the demand for special rectangular ratio soft magnetic materials. At present, the method of obtaining materials with special squareness ratio is generally through magnetic field heat treatment process, that is, obtaining rectangular soft magnetic materials with high squareness ratio by applying longitudinal magnetic field, and obtaining flat soft magnetic materials by applying transverse magnetic field, or using composite magnetic field treatment p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06
Inventor 纪松谭锁奎张延松钱坤明吴敏徐云娥
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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