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High-thermal-reduction abrasive material resin grinding wheel and manufacturing method thereof

A resin grinding wheel and abrasive technology, used in the field of grinding wheels, can solve the problems of high brittleness of pure phenolic resin, affecting the performance of friction materials, insufficient heat resistance, etc., and achieve the effects of less volatile substances, reducing porosity and improving heat resistance.

Inactive Publication Date: 2016-02-17
WUHU HONGKUN AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure phenolic resin has defects such as high brittleness, poor toughness, high hardness, insufficient heat resistance, low strength, and high noise during use, which greatly affect the performance of friction materials. Therefore, modifying phenolic resin is to improve its comprehensive performance. effective method

Method used

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Embodiment Construction

[0023] A high-heat reduction abrasive resin grinding wheel, which is composed of the following raw materials in parts by weight:

[0024] CBN abrasive 430, quartz sand 70, cerium nitrate 10, ethylene glycol 40, 25wt% ammonia water 10, hydrogen peroxide 2, phenol 90, 35% formaldehyde solution 96, boric acid 5, hexamethylenetetramine 2, aniline 13, chloride Barium 10, Coke 13, Sodium Chloride 1.

[0025] A preparation method of the described high-heat reduction abrasive resin grinding wheel, comprising the following steps:

[0026] (1) Mix the above-mentioned 25wt% ammonia water and hydrogen peroxide, and stir evenly;

[0027] (2) Mix the above-mentioned ethylene glycol with 40% by weight of deionized water, stir evenly, add cerium nitrate, keep stirring at 70 ° C for 20 minutes, dropwise add the above-mentioned 25wt% ammonia water, hydrogen peroxide mixed solution, after the dropping is completed Adjust the pH of the solution to 9, stir and react for 120 minutes, filter with ...

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Abstract

The invention discloses a high-thermal-reduction abrasive material resin grinding wheel. The high-thermal-reduction abrasive material resin grinding wheel is composed of, by weight, 430 to 500 parts of a CBN adhesive material, 70 to 100 parts of quartz sand, 10 to 17 parts of cerous nitrate, 40 to 50 parts of ethylene glycol, 10 to 14 parts of 25-28wt% ammonium hydroxide, 2 to 3 parts of hydrogen peroxide, 90 to 100 parts of phenol, 96 to 110 parts of a 35-40% formaldehyde solution, 5 to 7 parts of boric acid, 2 to 6 parts of hexamethylenetetramine, 13 to 20 parts of phenylamine, 10 to 13 parts of barium chloride, 13 to 20 parts of coke and 1 to 2 parts of sodium chloride. The coke is adopted for conducting thermal reduction on a cerium precursor, so that a high-strength reducing abrasive material is obtained, and the self-sharpening performance of the grinding wheel can be improved.

Description

technical field [0001] The invention relates to the technical field of grinding wheels, in particular to a high-heat reduction abrasive resin grinding wheel and a preparation method thereof. Background technique [0002] With the continuous improvement of the speed of automobiles and airplanes, the requirements for friction materials such as transmission and braking are more stringent, and the matrix as an important part of friction materials has always been the focus of development and research. Phenolic resin, epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene can all be used as the matrix of friction materials, but epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene have poor wear resistance, heat resistance and The adhesive properties limit its application in friction materials. The advantages of phenolic resin in terms of heat resistance, adhesion, mechanical properties, molding performance and cost make it the most commonly used binder mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/34B24D18/00C08G8/28C09K3/14
CPCB24D3/28B24D3/342B24D18/0009C08G8/28C09K3/14
Inventor 黄浩
Owner WUHU HONGKUN AUTO PARTS
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