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Anti-wear and high-hardness modified resin grinding wheel and preparation method thereof

A modified resin, high hardness technology, applied in the field of grinding wheels, can solve the problems of high brittleness of pure epoxy resin liquid, affecting the performance of friction materials, insufficient heat resistance, etc., to improve anti-oxidation performance, reduce porosity and compactness Good results

Inactive Publication Date: 2016-10-12
DIAMOND GRINDING WHEEL CO LTD IN ANHUI TOBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure epoxy resin liquid has defects such as high brittleness, poor toughness, high hardness, insufficient heat resistance, low strength and high noise during use, which greatly affects the performance of friction materials. Improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Abrasion-resistant and high-hardness modified resin grinding wheel, prepared from the following raw materials in parts by weight: 28 parts of dodecyl siloxane, 26 parts of silane coupling agent, 28 parts of white corundum, 11 parts of zirconium corundum, and 18 parts of formaldehyde solution 13 parts of silicon carbide, 31 parts of phenol, 16 parts of barium stearate, 40 parts of epoxy resin liquid, 27 parts of polypropylene alcohol, 28 parts of hexamethylenetetramine, 26 parts of barite, polytetrafluoroethylene 23 parts of resin.

[0018] The preparation steps of the anti-wear high hardness modified resin grinding wheel are as follows:

[0019] (1) Hexamethylenetetramine and barite were calcined at 700°C for 3 hours, cooled, and ground into fine powder;

[0020] (2) Add polypropylene alcohol to 180 times of water, stir evenly, add white corundum and zirconium corundum, and stir at 50°C for 15 minutes to obtain emulsion A;

[0021] (3) Add silicon carbide and barium s...

Embodiment 2

[0030] Abrasion-resistant and high-hardness modified resin grinding wheel, prepared from the following raw materials in parts by weight: 29 parts of dodecyl siloxane, 25 parts of silane coupling agent, 30 parts of white corundum, 10 parts of zirconium corundum, and 19 parts of formaldehyde solution 12 parts of silicon carbide, 30 parts of phenol, 15 parts of barium stearate, 44 parts of epoxy resin liquid, 26 parts of polypropylene alcohol, 30 parts of hexamethylenetetramine, 25 parts of barite, polytetrafluoroethylene 24 parts of resin.

[0031] The preparation steps of the anti-wear high hardness modified resin grinding wheel are as follows:

[0032] (1) Hexamethylenetetramine and barite were calcined at 750°C for 2.5 hours, cooled, and ground into fine powder;

[0033] (2) Add polypropylene alcohol to 190 times of water, stir evenly, add white corundum and zirconium corundum, and stir at 55°C for 12.5 minutes to obtain emulsion A;

[0034] (3) Add silicon carbide and bari...

Embodiment 3

[0043] Abrasion-resistant and high-hardness modified resin grinding wheel, prepared from the following raw materials in parts by weight: 30 parts of dodecyl siloxane, 24 parts of silane coupling agent, 32 parts of white corundum, 9 parts of zirconium corundum, and 20 parts of formaldehyde solution 11 parts of silicon carbide, 33 parts of phenol, 14 parts of barium stearate, 48 parts of epoxy resin, 25 parts of polypropylene alcohol, 32 parts of hexamethylenetetramine, 24 parts of barite, polytetrafluoroethylene 25 parts of resin.

[0044] The preparation steps of the anti-wear high hardness modified resin grinding wheel are as follows:

[0045] (1) Hexamethylenetetramine and barite were calcined at 800°C for 2 hours respectively, cooled, and ground into fine powder;

[0046](2) Add polypropylene alcohol to 200 times of water, stir evenly, add white corundum and zirconium corundum, and stir at 60°C for 10 minutes to obtain emulsion A;

[0047] (3) Add silicon carbide and bari...

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Abstract

The invention discloses an anti-wear and high-hardness modified resin grinding wheel and a preparation method thereof. The anti-wear and high-hardness modified resin grinding wheel is prepared from dodecyl siloxane, a silane coupling agent, white fused alumina, fused alumina zirconia, a formaldehyde solution, silicon carbide, phenol, barium stearate, epoxy resin liquid, polypropylene glycol, hexamethylenetetramine, barite and polytetrafluoroethylene resin. According to the anti-wear and high-hardness modified resin grinding wheel and the preparation method thereof, the modification is carried out by adopting nano ceramic, silicone resin, the fused alumina zirconia and the like; the hardness is high; the compactness is good; the revolving strength is high; the anti-wear and high-hardness modified resin grinding wheel is resistant to a high temperature and resistant to ablation; the contact between an abrasive material and oxygen can be effectively reduced; the antioxygenic property of a finished product is improved; a gas volume generated in a sintering process can be also decreased; and the porosity of the interior of a finished-product grinding wheel is decreased.

Description

technical field [0001] The invention relates to a grinding wheel, in particular to a modified resin grinding wheel with high abrasion resistance and high hardness 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. Epoxy resin liquid, epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene can be used as the matrix of friction materials, but pure epoxy resin, styrene-butadiene rubber and polytetrafluoroethylene have poor wear resistance, Heat resistance and bonding properties limit its application in friction materials. The advantages of epoxy resin liquid in heat resistance, bonding performance, mechanical properties, molding processing performance and cost make it the most...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D3/34B24D18/00
CPCB24D3/28B24D3/34B24D18/00
Inventor 高铁军
Owner DIAMOND GRINDING WHEEL CO LTD IN ANHUI TOBE
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