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A kind of elastic grinding plate and its preparation method

A grinding and elastic technology, which is applied in the field of elastic grinding and its preparation, can solve the problems of hard alloy burns and expensive raw materials, and achieve the effects of strong sharpness, reduced free formaldehyde content, and good water resistance

Active Publication Date: 2019-06-18
珠海泰达砂轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of expensive raw materials in the prior art, satisfy the processing of ordinary metals, glass stones and hard alloys, and solve the burns that occur in the processing of hard alloys, the invention provides an elastic abrasive and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 A kind of elastic grinding disc

[0030] The elastic abrasive disc is composed of the following components and parts by weight thereof:

[0031] 25 parts of white corundum 80#, 20 parts of green silicon carbide 100#, 20 parts of ceramic corundum 100#, 20 parts of phenolic resin powder, 8 parts of phenolic resin liquid, 8 parts of potassium fluoroaluminate, 3 parts of modified nitrile rubber powder and Iron oxide red 1 part.

[0032] The preparation method of described phenolic resin powder may further comprise the steps:

[0033] (1) Take 80g of phenol, 45g of formaldehyde and 0.6g of sulfuric acid and add them to the reaction kettle, stir and raise the temperature to boiling. After reacting for 80min, cool down to 60°C. Add 80g of phenol, 20g of formaldehyde and 0.5g of acetic acid again, stir and raise the temperature to boiling, and react for 90min. Afterwards, obtain material I;

[0034] (2) Add 0.4 g of polyethersulfone and 0.4 g of ethylene-vinyl a...

Embodiment 2

[0041] Embodiment 2 A kind of elastic grinding disc

[0042] The elastic abrasive disc is composed of the following components and parts by weight thereof:

[0043] White corundum 80#30 parts, green silicon carbide 100#30 parts, ceramic corundum 100#30 parts, phenolic resin powder 22.5 parts, phenolic resin liquid 10 parts, potassium fluoroaluminate 10 parts, modified nitrile rubber powder 4 parts and Iron oxide red 2 parts.

[0044] The preparation method of described phenolic resin powder, phenolic resin liquid and modified nitrile rubber powder is similar to embodiment 1.

[0045] The preparation method of described elastic grinding disc is:

[0046] S1. Mixing: Mix white corundum 80#, green silicon carbide 100#, ceramic corundum 100# and phenolic resin solution in mixing pot A for 4 minutes, add iron oxide red and stir for 16.5 minutes, mix phenolic resin powder, fluoroaluminic acid Potassium and modified nitrile rubber powder are mixed uniformly in mixing pot B, and th...

Embodiment 3

[0049] Embodiment 3 A kind of elastic grinding disc

[0050] The elastic abrasive disc is composed of the following components and parts by weight thereof:

[0051] White corundum 80#35 parts, green silicon carbide 100#40 parts, ceramic corundum 100#40 parts, phenolic resin powder 25 parts, phenolic resin liquid 12 parts, potassium fluoroaluminate 12 parts, modified nitrile rubber powder 5 parts and Iron oxide red 3 parts.

[0052] The preparation method of described phenolic resin powder, phenolic resin liquid and modified nitrile rubber powder is similar to embodiment 1.

[0053] The preparation method of described elastic grinding disc is:

[0054] S1. Mixing materials: mix white corundum 80#, green silicon carbide 100#, ceramic corundum 100# and phenolic resin liquid in mixing pot A for 5 minutes, then add iron oxide red and stir for 18 minutes, mix phenolic resin powder, potassium fluoroaluminate and the modified nitrile rubber powder are mixed uniformly in the mixing ...

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PUM

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Abstract

The invention belongs to the technical field of resin grinding wheels, and particularly relates to an elastic abrasive disc and a preparing method thereof. The elastic abrasive disc comprises, by weight, 25-35 parts of white corundum 80#, 20-40 parts of green silicon carbide 100#, 20-40 parts of ceramic corundum 100#, 20-25 parts of phenolic resin powder, 8-12 parts of phenolic resin liquid, 8-12 parts of potassium fluoroaluminate, 3-5 parts of modified nitrile rubber powder and 1-3 parts of iron oxide red. A toughening agent is added in the phenolic resin powder so that the elastic abrasive disc can have certain toughness, and a hardening curve for abrasive disc manufacturing is set more easily; the solid content of the phenolic resin liquid is high, and accordingly the abrasion resistance and cutting efficiency are improved; through adding of the modified nitrile rubber powder, the made elastic abrasive disc does not need to be bent or smoothened, the polishing and grinding feeling is good, durability is high, flexibility is good, and the requirements for machining of glass stone, hard alloys and the like can be met.

Description

technical field [0001] The invention belongs to the technical field of resin grinding wheels, and in particular relates to an elastic grinding disc and a preparation method thereof. Background technique [0002] With the development of building materials and decoration industries, elastic abrasive discs, as a special grinding wheel that can be used for both grinding and polishing, are more and more popular in the market, and are widely used in aerospace, bearings, molds, shipbuilding, automobiles, etc. , building materials, and even fine grinding and polishing in non-metallic fields, while the current elastic abrasives are generally low in durability, poor in flexibility, and the maximum bendable angle is small. There are many processing objects in the market. The existing elastic grinding discs have a single purpose. From ordinary metals to glass stones and even high-hardness cemented carbide, there are few corresponding products that can meet the processing of the above ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D3/28B24D3/34C08G8/10C08G8/28C08L61/10C08L81/06C08L23/08C08K7/08C08F236/06C08F220/44
CPCB24D3/28B24D3/285B24D3/342B24D18/0009C08F236/06C08G8/10C08G8/28C08L61/06C08L2205/03C08L81/06C08L23/0853C08K7/08C08F220/44
Inventor 尹增虎郑国铎
Owner 珠海泰达砂轮有限公司
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