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High-hardness brazing diamond grinding wheel and machining process thereof

A technology of diamond grinding wheel and processing technology, which is applied in the field of diamond grinding wheel to achieve the effects of improving overall grinding performance, improving wear resistance, and improving bonding and fitting

Active Publication Date: 2022-04-26
江阴市方鸿超硬工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Resin bonded diamond grinding wheels are widely used in precision grinding of hard and brittle materials such as engineering ceramics, cemented carbide, glass, and semiconductors. However, when preparing the diamond grinding wheel, it is necessary to improve the bonding performance between the resin bond and the diamond particles. To avoid the diamond particles falling off during the grinding process to improve its grinding performance, and most of the existing solutions are to treat the diamond surface, but the wear resistance of the diamond grinding wheel obtained at present still cannot meet our needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of processing technique of high-hardness brazing diamond emery wheel, comprises the following steps:

[0030] (1) Take diamond particles, the particle size of diamond particles is 40-45μm; soak in 5g / L sodium hydroxide solution to remove oil, the oil removal soaking time is 30min, and the oil removal soaking temperature is 80°C; deionized water ultrasonic Wash until neutral, then roughen it in a solution of 20% nitric acid by volume, the roughening time is 20min, and the roughening temperature is 85°C; after roughening, place the diamond particles in 10g / L stannous chloride , 40ml / L hydrochloric acid mixed solution for sensitization treatment, ultrasonic dispersion for 5min, ultrasonic cleaning with deionized water until neutral;

[0031] Take the sensitized diamond particles, transfer them to a mixture of 0.5g / L palladium chloride and 10ml / L hydrochloric acid, ultrasonically disperse them for 5 minutes, ultrasonically clean them with deionized water until they a...

Embodiment 2

[0038]A kind of processing technique of high-hardness brazing diamond emery wheel, comprises the following steps:

[0039] (1) Take diamond particles, the particle size of diamond particles is 40-45μm; soak in 5g / L sodium hydroxide solution to remove oil, the time of oil removal soaking is 35min, and the temperature of oil removal soaking is 75°C; deionized water ultrasonic Wash until neutral, then roughen it in a solution of 20% nitric acid by volume, the roughening time is 25min, and the roughening temperature is 80°C; after roughening, place the diamond particles in 10g / L stannous chloride , 40ml / L hydrochloric acid mixed solution for sensitization treatment, ultrasonic dispersion for 8min, ultrasonic cleaning with deionized water until neutral;

[0040] Take the sensitized diamond particles, transfer them to a mixture of 0.5g / L palladium chloride and 10ml / L hydrochloric acid, ultrasonically disperse them for 8 minutes, ultrasonically clean them with deionized water until t...

Embodiment 3

[0047] A kind of processing technique of high-hardness brazing diamond emery wheel, comprises the following steps:

[0048] (1) Take diamond particles, the particle size of diamond particles is 40-45μm; soak in 5g / L sodium hydroxide solution to remove oil, the oil removal soaking time is 40min, and the oil removal soaking temperature is 70°C; deionized water ultrasonic Wash until neutral, then roughen it in a solution of 20% nitric acid by volume, the roughening time is 30min, and the roughening temperature is 75°C; after roughening, place the diamond particles in 10g / L stannous chloride , 40ml / L hydrochloric acid mixed solution for sensitization treatment, ultrasonic dispersion for 10min, ultrasonic cleaning with deionized water until neutral;

[0049] Take the sensitized diamond particles, transfer them to a mixture of 0.5g / L palladium chloride and 10ml / L hydrochloric acid, ultrasonically disperse them for 10min, ultrasonically clean them with deionized water until they are ...

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Abstract

The invention discloses a high-hardness brazing diamond grinding wheel and a machining process thereof. According to the preparation scheme, graphene oxide, silicon carbide, copper powder and other components are introduced as reinforcing materials, so that the hardness of the grinding wheel is improved; meanwhile, in order to further improve the wear resistance of the diamond grinding wheel, brazed diamond particles and core-shell diamond particles are introduced, the surfaces of the brazed diamond particles are brazed through a brazing material and then covered with an alloy layer, and the brazed diamond particles conduct surface composite nickel layer plating on the diamond main material. After the surfaces of the two diamond particles are plated with metal, the roughness is improved, bonding and embedding between the diamond particles and a binding agent can be improved, the diamond is not prone to falling off in the grinding process of the grinding wheel, and the overall grinding performance of the grinding wheel is improved; and on the other hand, the hardness and wear resistance of the grinding wheel are further improved through plating of the composite nickel layer and the brazing alloy powder.

Description

technical field [0001] The invention relates to the technical field of diamond grinding wheels, in particular to a high-hardness brazed diamond grinding wheel and its processing technology. Background technique [0002] Resin bonded diamond grinding wheels are widely used in precision grinding of hard and brittle materials such as engineering ceramics, cemented carbide, glass, and semiconductors. However, when preparing the diamond grinding wheel, it is necessary to improve the bonding performance between the resin bond and the diamond particles. To prevent the diamond particles from falling off during the grinding process to improve its grinding performance, most of the existing solutions are to treat the diamond surface, but the wear resistance of the diamond grinding wheel obtained at present still cannot meet our needs. [0003] Based on the above situation, the present application discloses a high-hardness brazed diamond grinding wheel and its processing technology to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D18/00B24D3/02
CPCB24D18/0009B24D3/02
Inventor 颜铸玮沈敏军
Owner 江阴市方鸿超硬工具有限公司