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Making process of protective film used for ferrite sintering

A production process, ferrite technology, applied in the field of production process of protective film for ferrite sintering, can solve the problems of increased magnetic sheet loss, long production cycle, inability to disassemble, etc., to improve the pass rate and reduce adhesion rate, the effect of improving production efficiency

Pending Publication Date: 2019-03-19
绵阳北斗电子有限公司
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Problems solved by technology

During sintering, due to the close bonding between the magnetic sheets and the partial liquefaction of the magnetic sheets during sintering at high temperature, some areas on the surface of the magnetic sheets will fuse together. When the magnetic sheets are cooled to room temperature, t

Method used

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  • Making process of protective film used for ferrite sintering
  • Making process of protective film used for ferrite sintering

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[0021] The present invention will be further described below in conjunction with the accompanying drawings:

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention are described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] A manufacturing process of a protective film for ferrite sintering, comprising the following steps:

[0024] S1. The ferrite powder is made into the green sheet 4 by the casting method or the extrusion method;

[0025] S2. Set the corresponding operating parameters of the laser head in the laser marking machine 1 through the machine operatio...

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Abstract

The invention discloses a making process of a protective film used for ferrite sintering. The making process is used for forming a layer of protective film on the surface after sintering of ferrite raw magnetic sheets, and the protective film can greatly reduce the phenomenon of adhesion of ferrite magnetic sheets in the sintering process, so that the percent of pass of the ferrite magnetic sheetsis increased; after sintering of the ferrite magnetic sheets is completed, sheet setting can be directly performed on the ferrite magnetic sheets without independently cleaning each ferrite magneticsheet, thus saving the single magnetic sheet treatment time and improving the production efficiency of the ferrite magnetic sheets.

Description

technical field [0001] The invention belongs to the technical field of ferrite magnetic sheet production, and in particular relates to a production process of a protective film for ferrite sintering. Background technique [0002] At present, the production process of ferrite magnetic sheet is usually powder making-pulping-casting-swing film-sintering-separation cleaning-film coating. In the lamination section, the multi-layer lamination process is generally adopted, that is, six layers of green magnetic sheets are stacked together, and placed on the setter for high-temperature sintering. When laminating, it is necessary to split the stacked magnetic sheets into single sheets again. During sintering, due to the close bonding between the magnetic sheets and the partial liquefaction of the magnetic sheets during sintering at high temperature, some areas on the surface of the magnetic sheets will fuse together. When the magnetic sheets are cooled to room temperature, the The c...

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
CPCC04B35/26C04B35/622
Inventor 张仕俊蒋志琪李迈
Owner 绵阳北斗电子有限公司
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