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Preparation method for ceramic bond diamond grinding wheel

A ceramic bond, diamond grinding wheel technology, applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve the problems of unsatisfactory bonding strength, weak holding force, etc. , The effect of optimizing the glass network structure

Active Publication Date: 2019-05-21
上海邦佳实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention: Aiming at the weak holding force and unsatisfactory bonding strength between the existing vitrified bond and the diamond grinding wheel, a preparation method of the vitrified bonded diamond grinding wheel is provided

Method used

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  • Preparation method for ceramic bond diamond grinding wheel

Examples

Experimental program
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Effect test

example 1

[0031] Take diamond powder, vitrified agent, walnut shell, and corundum sand, and mix diamond powder, vitrified agent, walnut shell, and corundum sand to obtain the matrix; press the matrix at room temperature to obtain the green body , Place the green body in an oven for drying treatment to obtain a dried green body, place the dried green body in a muffle furnace for sintering treatment, and cool to room temperature to obtain a vitrified bond diamond grinding wheel. The preparation steps of vitrified bonding agent are: take silicate glass powder, asphalt, silicon carbide, copper powder, lanthanum oxide, zinc oxide, water glass; Silicate glass powder, pitch, silicon carbide, copper powder, lanthanum oxide, Zinc oxide and water glass are mixed to obtain a blend; the blend is placed in a ball mill for ball milling to obtain a mixture, and the mixture is melted in a high-temperature frit furnace to obtain a melt; The material was poured into deionized water and quenched, filtered t...

example 2

[0033] Take diamond powder, vitrified agent, walnut shell, and corundum sand, and mix diamond powder, vitrified agent, walnut shell, and corundum sand to obtain the matrix; press the matrix at room temperature to obtain the green body , Place the green body in an oven for drying treatment to obtain a dried green body, place the dried green body in a muffle furnace for sintering treatment, and cool to room temperature to obtain a vitrified bond diamond grinding wheel. The preparation steps of vitrified bonding agent are: take silicate glass powder, asphalt, silicon carbide, copper powder, lanthanum oxide, zinc oxide, water glass; Silicate glass powder, pitch, silicon carbide, copper powder, lanthanum oxide, Zinc oxide and water glass are mixed to obtain a blend; the blend is placed in a ball mill for ball milling to obtain a mixture, and the mixture is melted in a high-temperature frit furnace to obtain a melt; The material was poured into deionized water and quenched, filtered...

example 3

[0035] Take diamond powder, vitrified agent, walnut shell, and corundum sand, and mix diamond powder, vitrified agent, walnut shell, and corundum sand to obtain the matrix; press the matrix at room temperature to obtain the green body , Place the green body in an oven for drying treatment to obtain a dried green body, place the dried green body in a muffle furnace for sintering treatment, and cool to room temperature to obtain a vitrified bond diamond grinding wheel. The preparation steps of vitrified bonding agent are: take silicate glass powder, asphalt, silicon carbide, copper powder, lanthanum oxide, zinc oxide, water glass; Silicate glass powder, pitch, silicon carbide, copper powder, lanthanum oxide, Zinc oxide and water glass are mixed to obtain a blend; the blend is placed in a ball mill for ball milling to obtain a mixture, and the mixture is melted in a high-temperature frit furnace to obtain a melt; The material was poured into deionized water and quenched, filtered...

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Abstract

The invention relates to a preparation method for a ceramic bond diamond grinding wheel and belongs to the technical field of ceramic materials. A ceramic bond prepared by the invention can realize low-temperature sintering of the diamond grinding wheel; the ceramic bond has the thermal expansion performance with a diamond abrasive material, so that thermal stress is generated between diamond abrasive particles and the ceramic bond during working of the grinding wheel can be avoided or reduced, and the bonding holding capacity of the bond to the diamond abrasive particles is improved; the ceramic bond has relatively high toughness, and with appropriate toughness, the cutting effect of a micro-edge of the diamond abrasive material can be guaranteed, the impact resistance during grinding ofthe grinding wheel is improved, and the shape stability of the grinding wheel is ensured; and the ceramic bond has good wetting coating performance to the diamond abrasive material, so that improvement on the bonding strength between the ceramic bond and the diamond abrasive material as well as the overall strength of the grinding wheel are facilitated. For the preparation method, by adding lanthanum oxide rare-earth metal oxides or other subgroup metal oxides, the glass network structure can be effectively optimized, the properties, including the strength and the hardness, of the ceramic bondare improved, and the grinding performance of a diamond grinding tool is enhanced.

Description

technical field [0001] The invention relates to a method for preparing a vitrified bond diamond grinding wheel, which belongs to the technical field of ceramic materials. Background technique [0002] Diamond is the substance with the highest hardness known so far. In order to exert the grinding performance of diamond, it is usually necessary to prepare it into an abrasive tool with certain specifications, properties and uses with the help of binders and other auxiliary materials. [0003] Vitrified bonded diamond abrasive tools have important application value and broad application prospects in the field of mechanical processing due to their good heat resistance, water resistance, oil resistance, acid and alkali resistance, good shape retention and high grinding efficiency. However, in the process of abrasive tool preparation, on the one hand, due to the relatively low oxidation resistance temperature of synthetic diamond abrasives, the sintering of vitrified bond abrasive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/14B24D3/18B24D3/34B24D18/00
Inventor 方晓俊
Owner 上海邦佳实业有限公司
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