Method and apparatus for grinding magnetic components and method and apparatus for treatment of waste liquid

A technology of grinding fluid and magnetic parts, applied in the direction of grinding/polishing safety devices, fine working devices, grinding/polishing equipment, etc., can solve filter clogging, grinding edge wear, and difficulty in effectively removing sediment and other issues to achieve the effect of easy separation

Inactive Publication Date: 2007-07-25
HITACHI METALS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the latter related technology, the filter is often clogged with these particles, making it difficult to effectively remove the sediment containing these fine particles
[0006] In addition, if the grinding fluid that does not sufficiently remove the deposit is reused, when the magnetic part is cut with a grinding tool containing heat-resistant resin and superabrasive grains, the grinding edge will wear prematurely

Method used

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  • Method and apparatus for grinding magnetic components and method and apparatus for treatment of waste liquid
  • Method and apparatus for grinding magnetic components and method and apparatus for treatment of waste liquid
  • Method and apparatus for grinding magnetic components and method and apparatus for treatment of waste liquid

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Embodiment Construction

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0029] Referring to Fig. 1, as an embodiment of the present invention, the device 10 for grinding magnetic parts comprises a grinding operation part 12 for grinding magnetic parts 54 (will be described hereinafter), for by deposit 90 (It will also be described later) the purification part 14 for separating and purifying the grinding liquid 58 from the grinding liquid 58 used in the grinding operation part 12, and for retransmitting the purified grinding liquid 58 to the grinding operation Circulation section 16 of section 12.

[0030] The grinding operation part 12 includes a base 18 . The base 18 has an upper surface with an upwardly facing disc 22 having a drain 20 for discharging grinding fluid 58 thereon. The disc 22 has an upstanding plate 24 for preventing the grinding fluid 58 from splashing outside.

[0031] The disc 22 has an upper surface wit...

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Abstract

An apparatus for grinding a magnetic member comprises a cutting blade having a cutting edge including heat resistant resin and abrasive grain. A magnetic member including a rare-earth alloy is ground by the cutting blade while grinding fluid primarily made of water is supplied to a grinding region. A magnet separator having a surface magnetic flux density not smaller than 0.25 T magnetically separates sludge from used grinding fluid. Further, the grinding fluid is introduced into a tank, where the sludge contained in the grinding fluid is allowed to coagulate and sediment. The grinding fluid separated from the sludge is used in circulation. The same separation process can be used for separation of sludge containing a rare-earth alloy from waste fluid.

Description

technical field [0001] The invention relates to a method and device for grinding magnetic parts, and a method and device for treating waste liquid. In particular, the present invention relates to a method and apparatus for grinding magnetic members and a method and apparatus for treating waste liquid in which waste grinding liquid containing grinding waste deposits is purified and reused. Background technique [0002] A related technique for purifying grinding fluid is disclosed in Japanese Patent Laid-Open No. 10-309647. According to this related art, grinding fluid containing impurities is stored in a holding tank, and is agitated by a nozzle to separate sediment and abrasive grains from the grinding fluid. The precipitate is then removed from the holding tank by a magnetic separator. [0003] Another related art is disclosed in Japanese Patent Laid-Open No. 8-299717. According to this related art, a filter is used to purify the grinding fluid. [0004] However, accord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B55/03B03C1/06B03C1/28B24B27/06B24B55/02B28D5/00B28D5/02H01F41/02
CPCB28D5/007B03C1/28H01F41/0286B24B55/02B28D5/029B24B27/0683Y02P70/10
Inventor 竹马正则近藤祯彦
Owner HITACHI METALS LTD
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