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Composite calcium-based resin grinding wheel and manufacturing method thereof

A resin grinding wheel and composite calcium-based technology, applied in the field of grinding wheels, can solve the problems of affecting the performance of friction materials, high brittleness of pure phenolic resin, insufficient heat resistance, etc., to reduce porosity, less volatile substances, and increase adhesion Effect

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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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] A composite calcium-based resin grinding wheel, which is composed of the following parts by weight:

[0023] CBN abrasive 570, phenol 90, 35% formaldehyde solution 96, boric acid 5, hexamethylenetetramine 2, aniline 13, gibbsite 30, zinc naphthenate 0.1, fatty alcohol polyoxyethylene ether 1, ricinoleic acid Calcium 3, calcium stearate 6, calcium phosphate 10.

[0024] A method for preparing the composite calcium-based resin grinding wheel includes the following steps:

[0025] (1) Mix the above-mentioned calcium ricinoleate and calcium stearate, stir evenly, add water twice the weight of the mixture, raise the temperature to 60°C, keep the temperature and stir for 20 minutes to obtain a complex calcium solution;

[0026] (2) Mix 68% by weight of the above phenol and 70% by weight of 35% formaldehyde solution, stir evenly, add sodium hydroxide, adjust the pH to 8, raise the temperature to 70°C, keep the temperature and stir for 1.6 hours, add boric acid, High temperature is 11...

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Abstract

The invention discloses a composite calcium-based resin grinding wheel. The composite calcium-based resin grinding wheel is composed of, by weight, 570 to 600 parts of a CBN adhesive material, 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, 30 to 40 parts of gibbsite, 0.1 to 0.2 part of zinc naphthenate, 1 to 2 parts of fatty alcohol-polyoxyethylene ether, 3 to 4 parts of calcium ricinoleate, 6 to 10 parts of calcium stearate and 10 to 13 parts of calcium phosphate. The calcium ricinoleate and the calcium stearate are added so that the adhesion performance improving effect can be achieved to a certain extent and the thermal stability can be improved as well.

Description

Technical field [0001] The invention relates to the technical field of grinding wheels, in particular to a composite calcium-based 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 have become more stringent. As an important part of friction materials, the matrix 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 Bonding properties limit its application in friction materials. The advantages of phenolic resin in terms of heat resistance, bonding performance, mechanical properties, molding processability and cost, make it the most commonly used binde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/02B24D3/28B24D3/34B24D18/00C08G8/28C09K3/14
CPCB24D3/02B24D3/28B24D3/342B24D18/00B24D18/0009C08G8/28C09K3/1409
Inventor 黄浩
Owner WUHU HONGKUN AUTO PARTS
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