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High-wear-resistance Cu-SiC grinding tool material for ceramic-glass grinding and preparation method thereof

A ceramic glass, high wear-resistant technology, applied in the direction of grinding/polishing equipment, grinding devices, chemical instruments and methods, etc., can solve the problem of high cost, achieve the effect of reducing brittleness, improving fracture toughness, and reducing surface damage

Inactive Publication Date: 2020-04-21
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these achievements are not yet mature enough to be applied to industrial mass production, and the cost is relatively high

Method used

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  • High-wear-resistance Cu-SiC grinding tool material for ceramic-glass grinding and preparation method thereof
  • High-wear-resistance Cu-SiC grinding tool material for ceramic-glass grinding and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A kind of preparation method of high wear-resisting Cu-SiC abrasive tool material for ceramic glass grinding, comprises the following steps:

[0032] 1) Weigh 45% (wt) black silicon carbide (1000 mesh), 18% (wt) copper powder (800 mesh), 2% (wt) auxiliary abrasive (800 mesh) and mix evenly, add 35% (wt) resin ( Epoxy modified phenolic resin), stir evenly, obtain compound; The composition of auxiliary abrasive: TiC 15 weight parts, Cr 15 weight parts, zirconium corundum 30 weight parts, microcrystalline corundum 40 weight parts;

[0033] 2) Transfer the mixture into the preheated grinding block mold (scrape the raw material evenly with a scraper, cover it with a mold sticker, and put the mold into the press), at a temperature of 160°C, Under the condition of 15.2MPa, the pressure was hot-pressed for 13 minutes, the grinding block was taken out from the mold, and the burr was cut off after cooling to obtain the grinding block, that is, the abrasive tool.

[0034] After g...

Embodiment 2

[0037] A preparation method of a high wear-resistant Cu-SiC material for ceramic glass grinding, comprising the following steps:

[0038] 1) Weigh 50wt% of black silicon carbide (1000 mesh), 13% (wt) copper powder (800 mesh), 2% (wt) auxiliary abrasive (800 mesh) into the container, use a glass rod to stir continuously, let the ingredients Mix evenly; add 35% (wt) resin (epoxy modified phenolic resin), stir evenly; sieve the mixed formula several times, crush the agglomerates that appear, and remove impurities, so that the raw materials are mixed evenly; auxiliary Abrasive composition: 15 parts by weight of TiC, 15 parts by weight of Cr, 30 parts by weight of zirconium corundum, and 40 parts by weight of microcrystalline corundum;

[0039] 2) Pour the mixture into the mold, spread the material evenly, close the mold and put it into the press for heating and pressing (temperature 160°C, pressure 970KN, pressing time 12min), after the pressing is completed, remove the blank from...

Embodiment 3

[0042] A preparation method of a high wear-resistant Cu-SiC material for ceramic glass grinding, comprising the following steps:

[0043]1) Weigh 55wt% of black silicon carbide (1000 mesh), 8% (wt) copper powder (800 mesh), 2% (wt) auxiliary abrasive (800 mesh) into the container, use a glass rod to stir continuously, let the ingredients Mix evenly; add 35% (wt) resin (epoxy modified phenolic resin), stir evenly; sieve the mixed formula several times, crush the agglomerates that appear, and remove impurities, so that the raw materials are mixed evenly; auxiliary Abrasive composition: 15 parts by weight of TiC, 15 parts by weight of Cr, 30 parts by weight of zirconium corundum, and 40 parts by weight of microcrystalline corundum;

[0044] 2) Put the mixture into the mold by pouring method, remove air bubbles, then put the mold into an oven to dry at 80°C for 3 hours, then cool it, take the mold out of the oven, demould, and solidify at room temperature for 24 hours to obtain an...

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Abstract

The invention belongs to the technical field of surface processing of brittle materials and discloses a high-wear-resistance Cu-SiC grinding tool material for ceramic-glass grinding and a preparationmethod of the high-wear-resistance Cu-SiC grinding tool material. The grinding tool material is prepared from the following raw materials of, by mass percentage, 40-55% of black silicon carbide, 7-20%of copper powder, 1-3% of auxiliary abrasive and 30-35% of an adhesive. The auxiliary abrasive comprises TiC, Cr, zirconium corundum and microcrystalline corundum. The invention further discloses thepreparation method of the grinding tool material. The method is simple, a transfer layer close to micron particles can be formed in the obtained material and product surface grinding process, macroscopic defects such as particle extraction are reduced, surface damage is reduced, the product yield and the good rate are increased, the interface bonding strength of a ceramic-glass composite layer material is maintained, the microscopic defects such as damage and deformation, micro cracks, plastic deformation and the like generated by the sub-surface and the transition layer are reduced, and thefracture toughness, wear resistance and brittleness of a grinding tool are improved

Description

technical field [0001] The invention relates to a high wear-resistant Cu-SiC abrasive tool material for ceramic glass grinding and a preparation method thereof, belonging to the technical field of fine surface processing of brittle materials. Background technique [0002] At the current stage, the most common method used in my country for processing ceramics, glass, glass-ceramic and ceramic-glass composite materials is to use abrasive tools such as silicon carbide to act on the surface of the material for grinding. But the difficulty of this method is that when processing such brittle and high-hardness materials, various surface microcracks, residual stress, damage and subsurface damage will usually occur on the processed components, and even particles on the surface Pull out, forming a dimple. Moreover, in the current surface grinding process, there are still problems such as how to quickly and efficiently remove the materials that appear in the multiple complex grinding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D18/00C09K3/14
CPCB24D18/0009C09K3/1409
Inventor 周松青许泳行邓前军刘少杰侯天翔
Owner FOSHAN UNIVERSITY
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