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Surface treatment process of high frequency magnetic core blank

A surface treatment and magnetic core technology, applied in the mechanical field, can solve the problems of low operating efficiency and low product yield, and achieve the effects of high processing efficiency, high surface treatment stability, and high practical value

Inactive Publication Date: 2019-11-22
ZHEJIANG TONGDA MAGNET IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing treatment process, the operator usually uses sandpaper to manually polish, which not only has relatively low operating efficiency, but also the quality of the processed product is completely determined by the operator's experience, resulting in a low product yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The surface treatment process of the high-frequency magnetic core blank includes the following steps:

[0027] A. One-time grinding: Put the sintered core into a grinding machine for grinding treatment.

[0028] A zirconia grinding ball with an outer diameter of 3 mm was used, and the grinding treatment time was 1 hour.

[0029] B. Soaking: Put the grinded magnetic core into 10% hydrochloric acid and soak for 2 hours;

[0030] C. Air-drying: Put the soaked magnetic core into the conveyor belt. There is a fan on the side of the conveyor belt, and the air flow conveyed by the fan is directly opposite to the magnetic core on the conveyor belt.

[0031] In this embodiment, the wind speed of the fan is 2 meters per second.

[0032] D. Secondary grinding: Put the air-dried magnetic core into the grinding machine for grinding treatment.

[0033] In this step, an alumina grinding ball with an outer diameter of 0.3 mm is used, and the grinding treatment time is 3 hours.

[0034] E. Surface c...

Embodiment 2

[0038] The surface treatment process of the high-frequency magnetic core blank includes the following steps:

[0039] A. One-time grinding: Put the sintered core into a grinding machine for grinding treatment.

[0040] A zirconia grinding ball with an outer diameter of 10 mm was used, and the grinding treatment time was 2 hours.

[0041] B. Soaking: Put the grinded magnetic core into 30% hydrochloric acid and soak for 4 hours;

[0042] C. Air-drying: Put the soaked magnetic core into the conveyor belt. There is a fan on the side of the conveyor belt. The air flow conveyed by the fan is directly opposite to the magnetic core on the conveyor belt.

[0043] In this embodiment, the wind speed of the fan is 4 meters per second.

[0044] D. Secondary grinding: Put the air-dried magnetic core into the grinding machine for grinding treatment.

[0045] In this step, an alumina grinding ball with an outer diameter of 1 mm is used, and the grinding treatment time is 4 hours.

[0046] E. Surface clean...

Embodiment 3

[0050] The surface treatment process of the high-frequency magnetic core blank includes the following steps:

[0051] A. One-time grinding: Put the sintered and shaped magnetic core into a grinding machine for grinding treatment.

[0052] A zirconia grinding ball with an outer diameter of 4 mm was used, and the grinding treatment time was 1 hour.

[0053] B. Soaking: Put the polished magnetic core into 16% hydrochloric acid and soak for 3 hours;

[0054] C. Air-drying: Put the soaked magnetic core into the conveyor belt. There is a fan on the side of the conveyor belt. The air flow conveyed by the fan is directly opposite to the magnetic core on the conveyor belt.

[0055] In this embodiment, the wind speed of the fan is 3 meters per second.

[0056] D. Secondary grinding: Put the air-dried magnetic core into the grinding machine for grinding treatment.

[0057] In this step, an alumina grinding ball with an outer diameter of 0.6 mm is used, and the grinding treatment time is 4 hours.

[0...

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Abstract

The invention provides a surface treatment process of high frequency magnetic core blank, and belongs to the technical field of machinery. The problem that an existing technology has poor stability issolved. The surface treatment process of the high-frequency core blank includes the following steps that A, one time grinding is carried out, specifically, the sintered formed magnetic core is put into a grinder for grinding; B, soaking is carried out, specifically, the ground magnetic core is put into hydrochloric acid with concentration of 10%-30% for soaking 2-4 hours; C, air drying is carriedout, specifically, the soaked magnetic core is put into a conveyor belt, a fan is arranged on the side part of the conveyor belt, and the air flow conveyed by the fan directly faces the magnetic coreon the conveyor belt; D, secondary grinding is carried out, specifically, the air dried magnetic core is put into the grinder for grinding treatment; and E, the surface is cleaned, specifically, thesurface of the magnetic core after the secondary grinding is washed out with strong air flow to obtain the high-frequency magnetic core. The surface treatment process of the high frequency magnetic core blank has high stability.

Description

Technical field [0001] The invention belongs to the technical field of machinery and relates to a surface treatment process of a high-frequency magnetic core blank. Background technique [0002] After the high-frequency magnetic core blank is sintered, the outer surface roughness value is relatively high, and it needs to be polished to improve its surface quality. [0003] In the existing treatment process, the operator usually uses sandpaper for manual sanding. The work efficiency is not only relatively low, but the quality of the processed product is completely determined by the operator's experience, resulting in low product yield. Summary of the invention [0004] The purpose of the present invention is to provide a surface treatment process for high-frequency magnetic core blanks with high stability and relatively high working efficiency in view of the above-mentioned problems in the prior art. [0005] The purpose of the present invention can be achieved through the following t...

Claims

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Application Information

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IPC IPC(8): B24B1/00H01F41/02B08B5/02
CPCB08B5/02B24B1/00H01F41/0206
Inventor 高其琦徐建定
Owner ZHEJIANG TONGDA MAGNET IND
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