A method for improving high-temperature and high-salt properties of iron powder by using plasma electrolysis

A plasma electrolysis, high temperature and high salt technology, applied in electrolytic inorganic material coating, metal processing equipment, transportation and packaging, etc. It is easy to completely and uniformly coat problems, and achieve the effect of simplifying the powder modification process, improving the high temperature and high salt performance of iron powder, and reducing the cost.
CN110586932BActive Publication Date: 2020-10-02BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2020-10-02

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Abstract

The invention relates to a method for improving the high-temperature and high-salt properties of iron powder by using plasma electrolysis, and belongs to the technical field of iron powder surface modification. The method adopts the method of transporting the iron powder and the electrolyte solution separately, so that the iron powder and the electrolyte solution are mixed and immediately processed by the electrolytic plasma arc area, so as to avoid the problem of iron powder sedimentation or floating in the one-time preparation of the mixed suspension, and adopt a small The continuous batch processing method ensures the comprehensive quality of the iron powder modification treatment, and at the same time reduces the discharge area of ​​the cathode electrode, which is conducive to reducing costs and improving safety factors. The method of the invention has the advantages of simple operation, high production efficiency and low cost, and can ensure the improvement of the high-temperature and high-salt properties of the iron powder, and has good application prospects.
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Description

technical field

[0001] The invention relates to a method for improving the high-temperature and high-salt properties of iron powder by using plasma electrolysis, and belongs to the technical field of iron powder surface modification. Background technique

[0002] Electronic equipment will inevitably radiate electromagnetic waves during operation. In some specific environments, it is necessary to artificially introduce some external structural materials to reduce or even absorb electromagnetic waves to achieve the purpose of protecting electronic equipment. Therefore, research on microwave absorbing materials is particularly important. .

[0003] As a metal micropowder absorbent, iron powder has become an important magnetic wave-absorbing material due to its high magnetic permeability and magnetization. The purpose of reducing or even absorbing electromagnetic waves. However, at high temperature, the large specific surface area provides more activated attachment points for ...

Claims

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