Grinding fluid in use for superhard abrasive grinding wheel of metal binding agent electrolyzable online, and preparation method

A metal bond and superabrasive technology, applied in the field of grinding fluid, can solve the problems of short service life and poor geometric shape retention of the working surface, and achieve the effect of fast speed, strong adhesion and uniform texture

Inactive Publication Date: 2005-12-28
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a metal bond superabrasive grinding wheel that can be electrolyzed online to solve the disadvantages of difficult sharpening of resin bond abrasive tools commonly used in precision mirror grinding, poor geometric shape retention of the working surface, and short service life. And the grinding fluid with electrolytic sharpening effect and passive film formation effect used in conjunction with this grinding wheel

Method used

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  • Grinding fluid in use for superhard abrasive grinding wheel of metal binding agent electrolyzable online, and preparation method
  • Grinding fluid in use for superhard abrasive grinding wheel of metal binding agent electrolyzable online, and preparation method
  • Grinding fluid in use for superhard abrasive grinding wheel of metal binding agent electrolyzable online, and preparation method

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: implementation condition: M7130 type horizontal shaft rectangular platform surface grinder, each piece of metal bond CBN grinding wheel and vitrified bond CBN grinding wheel that can be electrolyzed online, the granularity of grinding wheel is 120#, the linear velocity Vs=20m / s of grinding wheel , table feed speed f = 10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is HR-1 hydrogen-resistant stainless steel. The metal bond CBN grinding wheel 1 that can be electrolyzed online is made as follows:

[0033] Abrasive: 120# particle size, 100% concentration of CBN

[0034] Binder: It is made of 80% iron powder, 10% copper powder, 5% nickel powder and 5% ferric oxide powder. Wherein percentage is mass percent.

[0035] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0036] The preparation method of the grinding fluid used in conjunction with the above grinding wheel is as follows:

[0...

Embodiment 2

[0044] Embodiment 2: implementation conditions: M7130 type horizontal shaft rectangular table surface grinder, each piece of metal bond CBN emery wheel and vitrified bond CBN emery wheel that can be electrolyzed online, the granularity of emery wheel is 120#, and the grinding consumption of use is the line of emery wheel Speed ​​Vs=20m / s, table feed speed f=10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is steel bonded carbide.

[0045]The manufacturing method of metal-based diamond and CBN mixed abrasive grinding wheel 2 is as follows:

[0046] Abrasive: 120# particle size, 100% concentration of diamond and CBN mixed abrasive.

[0047] Binder: It is made of 70% iron powder, 10% copper powder, 10% silver powder, 2% tin powder, 3% zinc powder and 5% ferric oxide powder. Wherein percentage is mass percent.

[0048] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0049] The preparation method of the gr...

Embodiment 3

[0057] Embodiment 3: implementation conditions: M7130 type horizontal shaft rectangular table surface grinder, each piece of metal bond CBN emery wheel and vitrified bond CBN emery wheel that can be electrolyzed online, the granularity of emery wheel is 120#, and the grinding consumption that uses is the line of emery wheel Speed ​​Vs=20m / s, table feed speed f=10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is cemented carbide. The manufacture method of metal-based diamond abrasive grinding wheel 3 is as follows:

[0058] Abrasive: 120# particle size, 100% concentration of diamond abrasive.

[0059] Binder: It is made of 60% iron powder, 15% copper powder, 15% tin powder, 5% zinc powder and 5% graphite powder. Wherein percentage is mass percent.

[0060] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0061] The preparation method of the grinding fluid used in conjunction with the above grinding whee...

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Abstract

The invention discloses a grinding fluid used in an on-line electrolyzed metal bond superabrasive grinding wheel and a preparation method thereof, belonging to the technical field of mechanical precision processing. The stock solution of this grinding fluid is composed of 0.1-0.3% sodium molybdate, 2-4% disodium hydrogen phosphate, 0.1-0.5% glycerol, 0.8-1.2% triethanolamine, 0.8-2% borax, 0.12 ~1% sodium sulfite and 0.28~1% red oil are prepared, and the invention is obtained according to the mass ratio of grinding fluid stock solution to water of 1:5~1:20. The preparation method is characterized in that it includes the following steps: ① heating water to 60°C-80°C; ② adding disodium hydrogen phosphate, borax, sodium sulfite, and sodium molybdate into the above water and stirring until dissolved to obtain a solution; ③ adding glycerol, Pour triethanolamine into the above solution and stir until it is completely dissolved; ④Pour in the red oil and dissolve it completely, and cool down to room temperature to obtain the original solution of grinding fluid; invention. It solves the problems of difficult sharpening of resin-bonded abrasive tools commonly used in precision mirror grinding, poor geometric shape retention of the working surface, and short service life.

Description

technical field [0001] The invention relates to a grinding fluid with the function of electrolytic film formation used in conjunction with an online electrolytic metal bond superabrasive grinding wheel. It can realize online electrolytic repairing and online electrolytic metal bond superhard abrasive grinding wheel precision mirror grinding. More strictly speaking, it relates to a grinding fluid with the functions of electrolytic sharpening, electrolytic film formation, rinsing, cooling, activation and soaking used in conjunction with online electrolytic metal bond superabrasive grinding wheels. Background technique [0002] In precision machining, resin bonded grinding wheels (diamond or cubic boron nitride fine grain size) are usually used. It is characterized by certain elasticity and high strength, and good impact resistance. However, its heat resistance and alkali resistance are poor, and the high temperature in the grinding area can burn the bonding agent. The alkali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14C10M173/02
Inventor 关佳亮范晋伟王文超马春敏
Owner BEIJING UNIV OF TECH
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