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Ceramic bond grinding tool

A ceramic bond and abrasive tool technology, applied in abrasives, grinding devices, manufacturing tools, etc., can solve the problems of uneven structure, difficulty in meeting use requirements, uneven pressure transmission, etc.

Active Publication Date: 2022-01-07
白鸽磨料磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The performance of the bond plays a vital role in the performance of the vitrified bonded abrasive tool. In the manufacturing process of the vitrified bonded abrasive tool, due to the pressing process Inhomogeneous pressure transmission is prone to uneven organization, resulting in product scrap; at the same time, clay, as one of the main raw materials of vitrified bond, is affected by the formation, place of origin, manufacturer, etc., and its composition changes greatly, which may easily cause vitrified bond wear. Large fluctuations in quality between different batches
Moreover, due to insufficient wetting of the abrasive by the wetting agent, the molding performance of the molding material mixed with the bond and the abrasive is poor, resulting in uneven hardness and softness of the same vitrified bond abrasive
All of these make the use of vitrified bond abrasives for bearing steel ball processing, resulting in low yield and low precision of the steel balls after grinding, making it difficult to meet the needs of use

Method used

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  • Ceramic bond grinding tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The vitrified bonded grinding tool in this embodiment is a vitrified bonded grinding wheel, which is made of the following raw materials in mass percentage: 20% silicon carbide, 30% corundum, and 50% vitrified bond. The vitrified bond used is composed of the following components by mass percentage: 17% of kaolinite powder, 2% of low-melting glass powder, 3% of nano silicon dioxide, 12% of pyrophyllite, and the balance is feldspar powder. When preparing the vitrified bond, take the formula amount of each component, mill it in a ball mill for 2.5 hours, and then sieve it. Among them, the low melting point boron glass powder is composed of the following components in mass percentage: 36% silicon dioxide, 11% aluminum oxide, 31% boron trioxide, 7% potassium oxide, 15% sodium oxide; low melting point glass powder The refractoriness is 570°C. The average particle diameter of nano silicon dioxide is 600nm.

[0019] The vitrified bond grinding wheel of the present embodiment ...

Embodiment 2

[0021] The vitrified bonded grinding tool in this embodiment is a vitrified bonded grinding wheel, which is made of the following raw materials in mass percentage: 20% silicon carbide, 32% corundum, and 48% vitrified bond. The vitrified bond used is composed of the following components by mass percentage: 17% of kaolinite powder, 2% of low-melting glass powder, 3% of nano silicon dioxide, 12% of pyrophyllite, and the balance is feldspar powder; During preparation, each component in the formula amount is ball milled in a ball mill for 2.5 hours and then sieved to obtain the product. Among them, the low melting point boron glass powder is composed of the following components in mass percentage: 36% silicon dioxide, 11% aluminum oxide, 31% boron trioxide, 7% potassium oxide, 15% sodium oxide; low melting point glass powder The refractoriness is 570°C. The average particle diameter of nano silicon dioxide is 600nm.

[0022] The vitrified bond grinding wheel of the present embodi...

Embodiment 3

[0024] The vitrified bond grinding tool of the present embodiment is a vitrified bonded grinding wheel, made of the raw materials of the following mass percentages: silicon carbide 18%, corundum 32%, vitrified bond 50%; the vitrified bond adopted consists of the following mass percentages Component composition: 17% kaolinite powder, 2% low-melting glass powder, 3% nano-silica, 12% pyrophyllite, and the balance is feldspar powder; when the vitrified bond is prepared, take the components of the formula After ball milling in a ball mill for 2.5 hours, it is obtained by sieving. Among them, the low melting point boron glass powder is composed of the following components in mass percentage: 36% silicon dioxide, 11% aluminum oxide, 31% boron trioxide, 7% potassium oxide, 15% sodium oxide; low melting point glass powder The refractoriness is 570°C. The average particle diameter of nano silicon dioxide is 800nm.

[0025] The vitrified bond grinding wheel of the present embodiment is...

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Abstract

The invention relates to a ceramic bond grinding tool, and belongs to the technical field of abrasive grinding tools. A ceramic bond adopted by the ceramic bond grinding tool is composed of the following components of, by mass, 17%-27% of kaolinite powder, 1%-3% of low-melting-point glass powder, 1%-5% of nano-silica, 7%-12% of pyrophyllite and the balance feldspar powder. The ceramic bond grinding tool has high structure uniformity and quality stability, the pyrophyllite is hydroxyl-containing layered aluminosilicate, the chemical formula of the pyrophyllite is Al2[Si4O10](OH)2, the pyrophyllite has good pressure transmission capacity under large pressure, and the structure uniformity and the quality stability of the ceramic bond grinding tool can be further improved; and in addition, the nano-silica can improve the high-temperature sintering performance of the bond and improve the self-sharpening performance of the ceramic bond grinding tool, and therefore the cutting efficiency is improved.

Description

technical field [0001] The invention relates to a vitrified bonded abrasive tool, which belongs to the technical field of abrasive abrasive tools. Background technique [0002] Vitrified bond is a common bond in the abrasives industry. It has the advantages of light weight, good self-sharpening, easy dressing, good heat resistance, small thermal expansion coefficient, high porosity, and not easy to clog. Vitrified bond abrasives mainly use ceramic powder as the bonding material, superhard materials (diamond, CBN and their modified abrasives) or ordinary materials (corundum, silicon carbide and their modified abrasives) or superhard materials / common material mixtures are Abrasives are products obtained by adding appropriate additives through sintering process. Vitrified bonded grinding tools can be used in most grinding situations, and in the field of bearing steel ball processing, they are usually used in hard grinding processes. [0003] The performance of the bond plays ...

Claims

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Application Information

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IPC IPC(8): B24D3/14B24D3/34B24D18/00
CPCB24D3/14B24D3/342B24D3/346B24D18/0009
Inventor 董德胜王学涛李凌胡慧勇邵冰高秋菊杨崇孙龙
Owner 白鸽磨料磨具有限公司
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