Nano ceramic bond cubic boron nitride (cBN) grinding wheel for cardan joint ball groove grinding as well as preparation method of grinding wheel

A technology of ceramic bond and universal joint ball, which is applied in the direction of grinding/polishing equipment, abrasive materials, grinding devices, etc., can solve the problems of affecting the grinding efficiency, the service life of the grinding wheel, and the poor shape retention of the grinding wheel, so as to improve the grinding efficiency. Effect of speed and correction interval, improvement of grinding efficiency and service life, and improvement of grinding wheel strength

Active Publication Date: 2017-08-15
江苏赛扬精工科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the strength problem of the domestic grinding wheel, the shape retention of the grinding wheel is poor, and the correction interval is 1, which seriously affects the grinding efficiency and the service life of the grinding wheel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A nano-ceramic bond cBN grinding wheel for ballway grinding of universal joints comprises a matrix and an abrasive layer. The composition of the abrasive layer is as follows by weight percentage: cBN abrasive 50%, Al 2 o 3 20% abrasive, 20% vitrified bond, 4% aluminum oxide hollow ball, 6% epoxy resin.

[0036] The substrate is steel base, the above-mentioned cBN abrasive particle size is 100-120 μm, Al 2 o 3 The particle size of the abrasive is 70-90 μm, and the particle size of the aluminum oxide hollow ball is 50-70 μm. Vitrified bond composition by weight percentage is SiO 2 53%, V 2 o 5 25%, Al 2 o 3 7%, Na 2 O 9%, K 2 O 6%, then add the nano-ZrO of 8% by weight 2 , ZrO 2 The particle size is 30-50 nm.

[0037] The preparation process of above-mentioned emery wheel is as follows:

[0038] (1) SiO 2 , V 2 o 5 、Al 2 o 3 、Na 2 O, K 2 O and ZrO 2 Mix evenly according to the weight ratio, heat to 1500°C in a frit furnace, quickly water-cool, ball...

Embodiment 2

[0047] A nano-ceramic bond cBN grinding wheel for ballway grinding of universal joints comprises a matrix and an abrasive layer. The composition of abrasive layer is as follows by weight percentage: cBN abrasive 47%, Al 2 o 3 Abrasive 23%, binder 22%, aluminum oxide hollow ball 2%, epoxy resin 6%.

[0048] The substrate is steel base, the above-mentioned cBN abrasive particle size is 100-120 μm, Al 2 o 3 The particle size of the abrasive is 70-90 μm, and the particle size of the aluminum oxide hollow ball is 50-70 μm. Vitrified bond composition by weight percentage is SiO 2 53%, V 2 o 5 25%, Al 2 o 3 7%, Na 2 O 9%, K 2 O 6%, adding 6% nano ZrO by weight 2 , ZrO 2 The particle size is 30-50 nm.

[0049] The technological process of grinding wheel preparation is identical with embodiment one.

[0050] Compared with the domestic grinding wheel (17.56*22.5*M8) currently on the market when the prepared grinding wheel processes the universal joint bell shell made of ...

Embodiment 3

[0053] A nano-ceramic bond cBN grinding wheel for ballway grinding of universal joints comprises a matrix and an abrasive layer. The composition of abrasive layer is as follows by weight percentage: cBN abrasive 47%, Al 2 o 3 Abrasive 23%, binder 22%, aluminum oxide hollow ball 2%, epoxy resin 6%.

[0054] The substrate is steel base, the above-mentioned cBN abrasive particle size is 100-120 μm, Al 2 o 3 The particle size of the abrasive is 70-90 μm, and the particle size of the aluminum oxide hollow ball is 50-70 μm. Vitrified bond composition by weight percentage is SiO 2 53%, V 2 o 5 25%, Al 2 o 3 7%, Na 2 O 9%, K 2 O 6%, adding 5% nano ZrO by weight 2 , ZrO 2 The particle size is 30-50 nm.

[0055] The technological process of grinding wheel preparation is identical with embodiment one.

[0056] Compared with the domestic grinding wheel (16.85*22.5*M8) currently on the market when the prepared grinding wheel processes the universal joint bell shell made of ...

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Abstract

The invention provides a nano ceramic bond cubic boron nitride (cBN) grinding wheel for cardan joint ball groove grinding as well as a preparation method of the grinding wheel. A nano ceramic bond is prepared from SiO2, V2O5, Na2O, Al2O3 and K2O, and 5%-8% of nano ZrO2 is added. According to the nano ceramic bond grinding wheel, the adopted bond is different from common ceramic bonds in that common B2O3 is replaced with rare metal oxide V2O5, meanwhile, nano ZrO2 is added, the strength and the hardness of the grinding wheel are improved by the aid of the effect that the rare metal oxide can improve the wetting ability of the bond, and the grinding wheel has the better shape retention while the relatively high sharpness is guaranteed, so that the grinding speed and the trimming interval are increased, the grinding efficiency is greatly improved, and the service life of the grinding wheel is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of superhard abrasives and relates to a nano-ceramic bond cBN grinding wheel for universal joint ballway grinding and a preparation method thereof. Background technique [0002] Ceramic cBN grinding wheel is a porous wear-resistant material with high porosity and high strength formed by sintering ceramic bond and cBN abrasive at high temperature. Compared with ordinary abrasives, cBN abrasives not only have the advantages of high hardness, high thermal conductivity, and good wear resistance, but also have strong thermal and chemical stability. Therefore, cBN abrasive wheels have gradually become the first choice for high-speed, high-precision grinding. [0003] During the grinding process of universal joint ballways, due to the large grinding allowance and fast grinding speed, and each ballway is ground in place at one time, the wear of the grinding wheel is serious, and there are high requirements for the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/14B24D18/00B24D3/34
CPCB24D3/14B24D3/342B24D18/0009
Inventor 杨菲涂俊群王凯平
Owner 江苏赛扬精工科技有限责任公司
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