Apreparation method of high-performance metal magnetic core and alloy powder for a device

A technology of alloy powder and metal powder, which is applied in the field of preparation of high-performance metal magnetic core and alloy powder for devices, can solve the problems of high oxide inclusion content, uneven structure, poor compactness, etc. Effects of production efficiency and high magnetic permeability

Inactive Publication Date: 2018-12-07
绵阳西磁科技有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-performance metal magnetic core and The preparation method of alloy powder for devices can produce metal p

Method used

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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0021] A method for preparing high-performance metal magnetic core and alloy powder for devices thereof includes the following steps:

[0022] (1) Ingredients: FeSi is used as the base material, and trace elements are added at the same time.

[0023] (2) Smelting: Place the ingredients in step (1) in a smelting furnace and melt them into molten metal at 1450~12000℃, and the molten metal flows into the high-pressure atomization equipment at a flow rate of 6~13Kg / min;

[0024] (3) Gas-water combined atomization: The molten metal in step (2) flows out from a small hole with a diameter of 3 to 5 mm, and the nozzle in the high-pres...

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Abstract

The invention discloses a preparation method of a high-performance metal magnetic core and alloy powder for devices thereof, belonging to the technical field of metal powder manufacture. The technicalscheme comprises the following steps: (1) ingredients: FeSi as a base material, trace elements; (2) smelting: placing the batch in the step (1) in a smelting furnace, melting at 1450-12000 DEG C to form a molten metal, and flowing the molten metal into a high-pressure atomizing equipment at a flow rate of 6-13 Kg/min; (3) Air-water atomization: outflow the metal liquid in the step (2) from the small hole with the diameter of 3-5mm, and the nozzle in the high-pressure atomizing equipment carries out high-speed impact on the metal liquid outflow from the small hole, wherein the ejection pressure in the nozzle is 2MPa, the ejection water pressure in the nozzle is 100MPa, and the metal powder with the particle size of 10-100mu is prepared; (4) dynamic rotating annealing; The invention has theadvantages of improving the performance of the metal powder and controlling the parameters of the metal powder according to the requirements.

Description

technical field [0001] The invention belongs to the technical field of metal powder manufacturing, and in particular relates to a method for preparing a high-performance metal magnetic core and an alloy powder for devices thereof. Background technique [0002] As an important magnetic functional material, metal soft magnetic powder core has a very broad application prospect in various inductance components, power transformers and other fields with the development of miniaturization and high frequency of electronic devices. Soft magnetic powder cores with unique properties The application of magnetic powder cores in the above fields will generate huge economic benefits. Metal magnetic powder core is a powder made of metal or alloy soft magnetic material. The soft magnetic composite material prepared by powder metallurgy production process has obvious magnetic and physical properties affected by raw material powder, forming process and post-processing process. In order to imp...

Claims

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Application Information

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IPC IPC(8): H01F1/153H01F41/00B22F9/08B22F1/00
CPCH01F1/1535H01F41/00B22F9/082B22F1/142
Inventor 侯超王玄哲邓诗志
Owner 绵阳西磁科技有限公司
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