Gas atomization preparation method for iron-silicon-chromium-germanium-titanium alloy soft magnetic powder
A soft magnetic powder, titanium alloy technology, applied in the field of soft magnetic alloy powder, can solve the problems of low tap density, low magnetic permeability, low loss resistance, etc., to reduce the content of inclusions, improve the structure defects, and improve the magnetic permeability. The effect of the rate characteristic
Pending Publication Date: 2022-01-04
泉州市鑫航新材料科技有限公司
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[0004] The invention provides a gas atomization preparation method of iron silicon chromium germanium titanium alloy soft magnetic powder to solve the defects of low tap density, low magnetic permeability and low loss resistance existing in the existing metal soft magnetic powder
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[0016] The specific implementation manner of the embodiment of the present invention is described below.
[0017] A kind of preparation method of iron silicon chromium germanium titanium alloy soft magnetic powder gas atomization, comprises the steps:
[0018] 1) Add the soft magnetic alloy powder raw material containing iron, silicon, chromium, germanium and titanium into the intermediate frequency induction furnace, and smelt it with vacuum and argon protection to obtain the alloy liquid.
[0019] Further, iron, chromium, and silicon are first added to the intermediate frequency induction furnace in sequence, the furnace body is sealed, the crucible of the intermediate frequency induction furnace is heated, the furnace body is evacuated to 1-100Pa, and nitrogen is filled to 100-102KPa; the raw materials in the induction furnace are completely Melting, and when the temperature reaches 1640-1660 degrees, add germanium and titanium; after sedation and slag removal, alloy liquid...
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The invention relates to a gas atomization preparation method for iron-silicon-chromium-germanium-titanium alloy soft magnetic powder. The preparation method comprises the following steps that (1) a soft magnetic alloy powder raw material containing iron, silicon, chromium, germanium and titanium is added into a medium-frequency induction furnace, and vacuumizing and argon protection smelting are carried out to obtain alloy liquid; and (2) under the argon protection condition, the alloy liquid is poured into an atomizing tower, in the pouring process, high-pressure supersonic argon acts on alloy liquid column flow, and the alloy liquid column flow is dispersed, broken and cooled into nearly-spherical alloy soft magnetic powder. The method can be used for preparing the iron-silicon-chromium-germanium-titanium alloy powder with high tap density, high magnetic conductivity and low loss, and the iron-silicon-chromium-germanium-titanium alloy powder can be widely applied as a powder raw material of inductor devices.
Description
technical field [0001] The invention relates to the technical field of soft magnetic alloy powder, in particular to a preparation method for gas atomization of soft magnetic powder of iron silicon chromium germanium titanium alloy. Background technique [0002] At present, metal soft magnetic powder is usually mainly made of iron silicon chromium, which is made by chemical reaction method, melt atomization method, mechanical crushing method and point solution deposition method. Among them, alloy powder is prepared by melt atomization method It has the same chemical composition as the established molten alloy, and also has a typical rapid solidification structure, a wide range of alloy composition, good sphericity of powder shape, and wide particle size distribution. It is widely used in the production of metal soft magnetic powder. [0003] However, with the development of science and technology, the application of electronic components is becoming wider and wider, and with ...
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IPC IPC(8): B22F9/08C22C38/34C22C38/28H01F1/147
CPCB22F9/082C22C38/34C22C38/002C22C38/28H01F1/147H01F1/14766B22F2009/0836B22F2009/0848B22F2009/0824B22F2009/0844
Inventor 黄莹祥王冲
Owner 泉州市鑫航新材料科技有限公司