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Polishing wheel for processing hard and brittle material and preparation method thereof

A technology of hard and brittle materials and polishing wheels, which is applied to wheels with flexible working parts, metal processing equipment, grinding/polishing equipment, etc., which can solve the problem of inability to prepare fine-grained abrasive polishing pads and low porosity of polishing pads. , easy to block and other problems, to achieve the effect of easy implementation and promotion, low subsurface damage, and uniform removal

Active Publication Date: 2020-10-16
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a polishing wheel for processing hard and brittle materials in view of the technical problems of the existing fixed abrasive polishing pads such as low porosity, easy clogging, and inability to prepare fine-grained abrasive polishing pads.

Method used

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  • Polishing wheel for processing hard and brittle material and preparation method thereof
  • Polishing wheel for processing hard and brittle material and preparation method thereof
  • Polishing wheel for processing hard and brittle material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S1. Cleaning of non-woven fabric: Take a piece of nylon non-woven fabric 4 and use surfactant to clean the non-woven fabric, then wash it with deionized water, anhydrous ethanol, and finally dry it in a hot oven;

[0032] S2, base liquid preparation: get 25g abrasive material 3 particle diameters and be the diamond of 5 micrometers, 1g potassium tripolyphosphate dispersant, 100g deionized water, 5g sodium carbonate additive 5 are mixed evenly, add 3g titanate coupling agent, then in Continuous vibration and stirring in a water bath at 20°C;

[0033] S3. Impregnation of non-woven fabric: put the base liquid prepared in S2 into a water bath at 20°C, then put the non-woven fabric 4 obtained in the first step into the base liquid, dip it and stir it slowly and uniformly for 10 minutes, and dry it in a hot oven;

[0034] S4. Press molding: put the nylon non-woven fabric 4 impregnated in S3 into a mold, and press at a temperature of 150° C. and a pressure of 50 kg for 5 minut...

Embodiment 2

[0037] S1. Cleaning of non-woven fabric: Take a piece of wool non-woven fabric 4 and use surfactant to clean the non-woven fabric, then wash it with deionized water, anhydrous ethanol, and finally dry it in a hot oven;

[0038] S2. Preparation of base liquid: Take 35g of abrasive 3, silica abrasive with a particle size of 200nm, 5g of sodium hexametaphosphate dispersant, 150g of deionized water, and 10g of potassium permanganate additive 5, mix well and add 3g of titanate coupling agent, then vibrate and stir continuously in a water bath at 40°C;

[0039] S3. Impregnation of non-woven fabrics: put the base liquid obtained in S2 into a water bath at 30°C, then put the wool non-woven fabric 4 obtained in the first step into the base liquid, dip it and stir it slowly and evenly for 10 minutes, and dry it in a hot oven ;

[0040] S4. Press forming: the wool non-woven fabric 4 impregnated in S3 is put into a mold, and pressed at a temperature of 180° C. and a pressure of 30 kg for...

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Abstract

The invention provides a polishing wheel for processing a hard and brittle material and a preparation method thereof. The method comprises the following steps of taking a non-woven fabric as a polishing layer matrix, cleaning the non-woven fabric with a surfactant, then washing the non-woven fabric with deionized water and absolute ethyl alcohol successively, and finally drying the non-woven fabric; mixing and stirring screened abrasive particles, a dispersant, an additive and deionized water and adding a coupling agent, and placing the mixture in a water bath at a certain temperature to be stirred and vibrated continuously; placing the dried non-woven fabric in a base solution to be impregnated, slowly and uniformly stirring the non-woven fabric in the water bath at a certain temperaturefor a certain time, and drying the non-woven fabric; and placing the dried non-woven fabric in a die, and pressing the non-woven fabric for a certain time to prepare a polishing layer. The method is simple in process, low in cost and easy to implement and popularize.

Description

technical field [0001] The invention relates to a finishing tool, in particular to a polishing wheel containing abrasives for polishing, in particular to a polishing wheel for processing hard and brittle materials and a preparation method thereof. Background technique [0002] Hard and brittle materials such as engineering ceramics, optical glass, and semiconductor wafers have the characteristics of high hardness, high strength, high brittleness, low density, wear resistance, corrosion resistance, and good chemical stability. They are widely used in military and civilian industries such as aerospace, precision optical instruments, etc. In the field of instrumentation and semiconductors. Whether it is engineering ceramics and optical glass used in instruments and equipment in the defense field, or wafers used in the semiconductor industry, there are high requirements for the integrity and precision of surface processing. Machining hard and brittle materials to an ideal surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D13/14B24D18/00C09G1/02
CPCB24D13/14B24D18/0027B24D18/0009B24D18/0072C09G1/02
Inventor 康仁科高尚牟宇张瑜董志刚朱祥龙
Owner DALIAN UNIV OF TECH
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