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Ceramic binder for steel ball grinding wheel

A technology of vitrified bond and steel ball grinding wheel, which is applied in the field of vitrified bond grinding steel ball grinding wheel and its preparation, can solve the problems of restricting the efficiency and quality level of steel balls, low impact toughness, high scrap rate of grinding wheel, etc., and achieve electrical Excellent properties, large grinding ratio and good toughness

Active Publication Date: 2012-02-29
江苏华东砂轮有限公司
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AI Technical Summary

Problems solved by technology

The currently used vitrified binder is mainly glass or ceramics, so it has the disadvantages of high sintering temperature, low strength, low impact toughness, uneven hardness, easy to burn the workpiece, and high scrap rate of grinding wheel, which restricts the production of steel balls in modern industry. efficiency and quality level

Method used

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Experimental program
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Effect test

Embodiment Construction

[0040] 1. Raw material of vitrified bond for grinding wheel and its technical conditions Raw material ratio range:

[0041] 1. Feldspar: particle size: all pass through 100# sieve, ≥98% through 240# sieve, moisture: ≤1%;

[0042] 2. Clay: Particle size: all through 100# sieve, ≥98% through 240# sieve, moisture: ≤1%;

[0043] 3. Boron glass: color: white, no impurities, boron ≥ 28.5%, moisture: ≤ 1%;

[0044] Particle size: all through 100# sieve, ≥96% through 240# sieve,

[0045]4. Sodium bentonite: Ca-Benton+Na+——>Na-Benton+Ca2, montmorillonite ≥60-88(%), pH value 8.9-10, expansion capacity: 25-50ml / g, colloid price: ≥ 99ml / 15g, 2h water absorption: 250-350%, wet compressive strength: ≥0.23(Mpa), blue absorption ≥80mmol / g, Na2O≥1.28, moisture: ≤1%;

[0046] 5. Manganese ore powder: MnO2 ≥ 65%, moisture: ≤ 1%, particle size 325 mesh > 98%,

[0047] Weigh feldspar, boron glass, and manganese ore raw materials according to the above formula, put them in a ball mill and mix t...

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Abstract

The invention relates to a structure of a grinding material composited with a novel high-shrinkage engineering ceramic binder for the preparation of a grinding wheel and a preparation method thereof. The preparation method is characterized in that: the high-strength high-shrinkage engineering ceramic binder which is prepared from clay, feldspar, boracic glass, bentonite and manganite is composited with the mixed grinding material, the opacifying effect of the boracic glass promotes the glass nucleation, fluxing agents bentonite and manganite powder promote the preparation of the high-strengthhigh-shrinkage engineering ceramic structure, and the ceramic binder for the steel ball grinding wheel is prepared through carrying out cold-press high-pressure molding, and sintering at a certain temperature. Compared with market products, the strength, the combination degree, the elastic modulus and the linear velocity in usage of the steel ball grinding wheel are greatly improved, the geometric dimension of the steel ball grinding wheel is stable, the steel ball grinding wheel which has a high strength, a high hardness and a uniform tissue density and has the advantages of large grinding ratio, high fineness and no workpiece burning under high speed grinding conditions is a special grinding wheel for a novel high efficiency steel ball. So the steel ball grinding wheel can be widely applied to the mechanical steel ball manufacturing industry and is easy to be automated in the industry.

Description

technical field [0001] The invention relates to a vitrified bond grinding steel ball grinding wheel and a preparation method thereof. Background technique [0002] Grinding wheel is an important tool in machining, it relies on bonding agent to combine loose granular abrasives together. Since the grinding wheel is subject to a large impact force and needs to rotate at a high speed, its strength is the prerequisite for safe and effective use; steel balls are important components of modern machinery and industrial equipment, and improve the quality of grinding materials for processing steel ball grinding wheels It is particularly important to promote the technological progress of steel ball production enterprises and promote the development of the industry. In the past, the binders used to prepare steel ball grinding wheels include ceramics, glass, etc., among which ceramic binders are the most. The currently used vitrified binder is mainly glass or ceramics, so it has the dis...

Claims

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Application Information

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IPC IPC(8): C04B35/16C04B35/622
Inventor 陈瑞和万隆徐会铭王友堂包东风葛宗荣
Owner 江苏华东砂轮有限公司
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