Method for preparing resin grinding wheel

A grinding wheel and resin technology, which is applied in the field of preparation of resin grinding wheels, can solve the problems of easily corroded metals and harmful substances, and achieve the effects of strong grinding force, lower cutting temperature, and reduced friction

Inactive Publication Date: 2014-02-19
CHANGSHU JULI GRINDING WHEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing grinding wheels mainly use pyrite as a lubricant, but the main component of pyrite is iron disulfide, which is easily oxidized into ferric oxide and sulfur dioxide in the air, and sulfur dioxide gas is harmful to the human body and the environment. Harmful and also prone to corrosion of metals being cut or ground

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for a resin grinding wheel, comprising the steps of:

[0017] 1) First put 85 parts by mass of white corundum into 15 parts by mass of acrylic emulsion for infiltration, then mix 8 parts by mass of polytetrafluoroethylene powder, 2 parts by mass of boron nitride, 20 parts by mass of cryolite and 35 parts by mass of phenolic resin powder with The infiltrated white corundum is evenly mixed, and then passed through a 25-mesh standard sieve to obtain a grinding wheel mixture;

[0018] 2) Take a glass fiber cloth and coat both sides with phenolic resin, put it in an oven, and bake it at 140°C for 20 minutes to obtain a glass fiber sheet;

[0019] 3) Put the grinding wheel mixture into the forming mold and flatten it, and completely embed the glass fiber sheet in the grinding wheel mixture horizontally, and press to form the grinding wheel green body;

[0020] 4) Put the grinding wheel blank into the sintering furnace for sintering. From room temperature...

Embodiment 2

[0023] A preparation method for a resin grinding wheel, comprising the steps of:

[0024] 1) First put 75 parts by mass of white corundum into 13 parts by mass of acrylic emulsion for infiltration, then mix 7 parts by mass of polytetrafluoroethylene powder, 1.5 parts by mass of boron nitride, 18 parts by mass of cryolite and 33 parts by mass of phenolic resin powder with The infiltrated white corundum is evenly mixed, and then passed through a 24-mesh standard sieve to obtain a grinding wheel mixture;

[0025] 2) Take the glass fiber cloth and coat it with phenolic resin on both sides, put it in an oven, and bake it at 138°C for 17 minutes to get a glass fiber sheet;

[0026] 3) Put the grinding wheel mixture into the forming mold and flatten it, and completely embed the glass fiber sheet in the grinding wheel mixture horizontally, and press to form the grinding wheel green body;

[0027] 4) Put the grinding wheel blank into the sintering furnace for sintering. From room temp...

Embodiment 3

[0030] A preparation method for a resin grinding wheel, comprising the steps of:

[0031] 1) First put 70 parts by mass of white corundum into 10 parts by mass of acrylic emulsion for infiltration, then mix 6 parts by mass of polytetrafluoroethylene powder, 1 part by mass of boron nitride, 15 parts by mass of cryolite and 30 parts by mass of phenolic resin powder with The infiltrated white corundum is evenly mixed, and then passed through a 20-mesh standard sieve to obtain a grinding wheel mixture;

[0032] 2) Take a glass fiber cloth and coat both sides with phenolic resin, put it in an oven, and bake it at 135°C for 15 minutes to obtain a glass fiber sheet;

[0033] 3) Put the grinding wheel mixture into the forming mold and flatten it, and completely embed the glass fiber sheet in the grinding wheel mixture horizontally, and press to form the grinding wheel green body;

[0034] 4) Put the grinding wheel blank into the sintering furnace for sintering. From room temperature ...

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PUM

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Abstract

The invention discloses a method for preparing a resin grinding wheel. The method comprises the following steps: (1) placing 70-85 parts by weight of white corundum into 10-15 parts by weight of acrylic emulsion to be soaked, evenly mixing 6-8 parts by weight of polytetrafluoroethylene powder, 1-2 parts by weight of boron nitride, 15-20 parts by weight of cryolite and 30-35 parts by weight of phenolic resin powder with the soaked white corundum, and enabling the mixture to pass through 20-25-mesh standard screens to obtain a grinding wheel mixture; (2) taking a glass fiber cloth, coating the two faces of the glass fiber cloth with phenolic resin, then placing the glass fiber cloth into a drying oven, and baking the glass fiber cloth at the temperature of 135-140 DEG C for 15-20min to obtain glass fiber pieces; (3) placing the glass fiber mixture into a forming mold, spreading the glass fiber mixture, completely embedding the glass fiber pieces into the grinding wheel mixture, and conducting compression forming to obtain a grinding wheel green body; (4) placing the grinding wheel green body into a sintering furnace to be sintered; (5) machining the sintered grinding wheel green body on a lathe and a grinding machine to obtain the finished resin grinding wheel. When resin grinding wheel prepared by the method is used, harmful gas caused by oxidation can not emit.

Description

technical field [0001] The invention relates to a preparation method of a resin grinding wheel. Background technique [0002] Grinding wheel is the main tool for grinding, which is a porous object composed of abrasive and bonding agent. Resin grinding wheel is a grinding wheel whose binder is resin. It has the advantages of small grinding force, low grinding temperature, good self-sharpening, and high grinding efficiency. It is widely used in the grinding of hard and brittle materials such as cemented carbide, ceramics, and glass. Processing. [0003] In order for the grinding wheel to play the role of grinding lubrication during cutting or grinding, lubricants and stabilizers must be included in the filler used to prepare the grinding wheel. Existing grinding wheels mainly use pyrite as a lubricant, but the main component of pyrite is iron disulfide, which is easily oxidized into ferric oxide and sulfur dioxide in the air, and sulfur dioxide gas is harmful to the human bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D18/00
Inventor 邵国良
Owner CHANGSHU JULI GRINDING WHEEL
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