Method for preparing metal soft magnetic powder through inorganic insulation coating

A metal soft magnetic, inorganic insulation technology, applied in the direction of inorganic material magnetism, magnetic materials, magnetic objects, etc., can solve the problems of continuous production, easy to agglomerate, etc., to improve production efficiency, high rust resistance, insulation high sex effect

Inactive Publication Date: 2018-08-28
HEFEI ECRIEE TAMURA ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing method for prepari...

Method used

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  • Method for preparing metal soft magnetic powder through inorganic insulation coating
  • Method for preparing metal soft magnetic powder through inorganic insulation coating
  • Method for preparing metal soft magnetic powder through inorganic insulation coating

Examples

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Embodiment 1

[0023] A method for preparing metal soft magnetic powder by inorganic insulating coating, comprising the following steps:

[0024] (1) Weigh sodium metaborate, sodium metaphosphate, nano-magnesium oxide, and nano-alumina respectively according to the proportioning ratio, and dissolve them in distilled water, and fully stir until an emulsion without precipitation at the bottom is obtained, that is, the coating agent is obtained;

[0025] (2) Weigh the iron-silicon-chromium alloy powder according to the proportion, and place it in the mixer, then add the coating agent therein, stir and mix to obtain the original slurry; preferably, the stirring throw in this step adopts double planetary The mixer is carried out, and the parameters are set as follows: the rotation speed is 40r / min, the temperature is 20-25°C, and the stirring time is 15-30min.

[0026] (3) The raw slurry is dried by a flash drying method to obtain a powdery product with uniform particles.

[0027] The dosages of...

Embodiment 2

[0041] The difference between this embodiment and Embodiment 1 is that the soft magnetic metal powder is carbonyl iron powder, and the dosage and related parameters of other raw materials are the same as those in Embodiment 1.

Embodiment 3

[0049] The soft magnetic metal powder used in the present embodiment is iron silicon chromium alloy powder, and its difference with embodiment 1 is that the consumption of described sodium metaborate, sodium metaphosphate, nano magnesium oxide, nano aluminum oxide and distilled water is respectively 1.4%, 2.3%, 0.32%, 0.89%, 12% of the mass of soft magnetic powder.

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Abstract

The invention discloses a method for preparing metal soft magnetic powder through inorganic insulating coating, and belongs to the technical field of preparation of metal soft magnetic powder materials. The method comprises the following steps that 1, sodium metaborate, sodium metaphosphate, nanometer magnesia and nanometer aluminium oxide are weighed in proportion, and dissolved into distilled water, the mixture is fully stirred to be mixed to be uniform, and a coating agent is obtained; 2, the soft magnetic powder is weighed in proportion and put into a stirrer, the coating agent is added into the mixture, stirring and mixing are conducted, and primary pulp is obtained; 3, the primary pulp is subjected to flash drying, and a product is obtained. The method has the advantages that continuous production can be achieved, and the production efficiency is greatly improved; meanwhile, the adopted inorganic coating agent has the advantages of being high in toughness, high in insulating property and good in rust-resisting property.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal soft magnetic powder materials, in particular to a method for preparing soft magnetic metal powder by inorganic insulation coating Background technique [0002] With the rapid development of electronic information technology and electronic information industry, newer and higher requirements are put forward for the high-frequency integrated inductance components in use, especially as components continue to be high-frequency, high-performance, and low-voltage With the development of loss and miniaturization, in order to meet the increasingly sophisticated requirements of inductance components, the performance of soft magnetic materials, which are the main components of inductance components, must be continuously improved. [0003] In order to prevent the performance loss and heat waste caused by eddy current loss during use, and to prevent the catalytic aging effect of iron atoms on the...

Claims

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Application Information

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IPC IPC(8): H01F1/36H01F41/00
CPCH01F1/0054H01F1/36H01F41/00
Inventor 李媛媛李伟健万静龙刘国安柳军涛
Owner HEFEI ECRIEE TAMURA ELECTRIC
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