A kind of preparation method of high-strength resin grinding wheel

A high-strength resin and grinding wheel technology, used in manufacturing tools, metal processing equipment, grinding/polishing equipment, etc., can solve the problems of unstable resin quality, poor heat resistance of grinding wheels, affecting the strength of grinding wheels, etc., to achieve good self-sharpening, The effect of large cutting ratio and long service life

Active Publication Date: 2019-01-04
惠州捷姆复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to solve the problem that the resin quality is unstable during the use of the traditional resin grinding wheel, which affects the strength of the grinding wheel, and at the same time, the grinding wheel has poor heat resistance and low porosity, resulting in large self-consumption and small cutting ratio during cutting. A filler is prepared by compounding wollastonite, rosin and tung oil are used to synthesize a resin binder, and then boehmite is used to prepare a hard abrasive, and a high-strength resin grinding wheel is obtained through solidification and molding. The present invention first uses wollastonite, Sepiolite is used as raw material to prepare mixed filler powder, then rosin is melted and reacted with tung oil, zinc oxide, etc. The gel is calcined and pulverized, then sintered, and finally the obtained hard abrasive, resin binder, and preheated and melted spare mixed filler powder are pressed and solidified to obtain a high-strength resin grinding wheel. The present invention utilizes wollastonite and sepiolite composite calcined The iron oxide produced is used as a filler to increase the porosity of the grinding wheel, and rosin, tung oil and glycerin are used to react to form a bonding resin, which improves the thermal stability of the grinding wheel, and then combined with boehmite to make a hard abrasive, which improves the wear resistance of the grinding wheel, effectively It solves the problems of large self-consumption and small cutting ratio when cutting with traditional resin grinding wheels, and has broad application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017]First, add 260g of wollastonite and 180g of sepiolite into the pulverizer in turn, and pass through a 120-mesh sieve after crushing to obtain mixed stone powder, then pour the resulting mixed stone powder into a beaker filled with 600mL of 10% ferric chloride solution , stirred and mixed with a glass rod for 10 minutes, and then, under stirring, added dropwise a 10% sodium hydroxide solution until no precipitation occurred, continued to stir and react for 10 minutes, filtered, collected the filter cake, washed and filtered with deionized water The cake is neutralized, then the filter cake is transferred to an oven, and dried to constant weight at a temperature of 105°C, and then the dried filter cake is transferred to a muffle furnace, and calcined at a temperature of 550°C for 45min. Naturally cool to room temperature to obtain mixed filler powder for later use; then weigh 200g of rosin, pour it into a four-necked flask with a stirrer and a reflux condenser, heat until t...

example 2

[0020] First, add 270g of wollastonite and 190g of sepiolite into the pulverizer in sequence, and pass through a 150-mesh sieve after crushing to obtain mixed stone powder, then pour the resulting mixed stone powder into a beaker filled with 700mL of 10% ferric chloride solution , stirred and mixed with a glass rod for 13 minutes, then, under stirring, added dropwise a 13% sodium hydroxide solution until no precipitation occurred, continued to stir for 13 minutes, filtered, collected the filter cake, washed and filtered with deionized water The cake is neutral, then the filter cake is transferred to an oven, and dried to constant weight at a temperature of 108°C, then the dried filter cake is transferred to a muffle furnace, and calcined at a temperature of 575°C for 53 minutes. Naturally cool to room temperature to obtain mixed filler powder for later use; then weigh 250g of rosin, pour it into a four-necked flask with a stirrer and a reflux condenser, heat until the rosin is ...

example 3

[0023] First, add 280g of wollastonite and 200g of sepiolite into the pulverizer in turn, and pass through a 180-mesh sieve after crushing to obtain mixed stone powder, then pour the resulting mixed stone powder into a beaker filled with 800mL of 10% ferric chloride solution , stirred and mixed with a glass rod for 15 minutes, and then added dropwise a 15% sodium hydroxide solution with a mass fraction of 15% under stirring until no precipitation occurred, continued to stir and react for 15 minutes, filtered, collected the filter cake, washed and filtered with deionized water The cake is neutral, and then the filter cake is transferred to an oven, dried to constant weight at a temperature of 110°C, and then the dried filter cake is transferred to a muffle furnace, and calcined at a temperature of 600°C for 60 minutes. Naturally cool to room temperature to obtain mixed filler powder for later use; then weigh 300g of rosin, pour it into a four-necked flask with a stirrer and a re...

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Abstract

The invention discloses a manufacturing method for a high-strength resin grinding wheel, and belongs to the technical field of grinding wheel manufacturing. The manufacturing method comprises the following steps: taking wollastonite and sepiolite as raw materials to prepare mixed filler powder; fusing rosin, enabling the fused rosin to react with tung oil, zinc oxide and the like to prepare a resin binding material; mixing and ball-milling an ethanol solution, boehmite and the like to mix and dry with magnesium nitrate, and roasting, crushing and sintering dried gel; and finally, pressing, curing and forming an obtained hard abrasive material along with the resin binding material, pre-heated and fused standby mixed filler powder, thereby manufacturing the high-strength resin grinding wheel. According to the manufacturing method disclosed by the invention, iron oxide generated by compounding and roasting the wollastonite and sepiolite is taken as filler, so that porosity of the grinding wheel is improved; and the rosin, tung oil and glycerin react to generate adhesive resin, so that thermal stability of the grinding wheel is improved; and the adhesive resin is matched with the boehmite to prepare the hard abrasive material, so that wear resistance of the grinding wheel is improved, and the problems such as great self-consumption and a small cutting ratio during cutting of the conventional resin grinding wheel are effectively solved, and therefore, the manufacturing method has a wide application prospect.

Description

technical field [0001] The invention discloses a preparation method of a high-strength resin grinding wheel, belonging to the technical field of grinding wheel preparation. Background technique [0002] Abrasives are tools used for grinding, grinding and polishing. Most of the grinding tools are artificial grinding tools made of abrasives and bonding agents, and natural grinding tools are also directly processed into natural ore rocks. In addition to being widely used in machinery manufacturing and other metal processing industries, abrasive tools are also used in the processing of non-metallic materials such as grain processing, paper industry, ceramics, glass, stone, plastic, rubber, and wood. [0003] Grinding wheel is a circular bonded abrasive tool with a through hole in the center made by mixing abrasives and binders, compacting, drying, and roasting. It is also the most widely used abrasive tool. It is a tool that can be used for rough grinding, semi-finishing, fine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D3/28B24D3/32B24D3/34
CPCB24D3/28B24D3/32B24D3/34B24D18/0009
Inventor 汪逸凡马俊杰薛国忠
Owner 惠州捷姆复合材料有限公司
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