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Diamond grinding wheel with ceramic binders and production method thereof

A vitrified bond and diamond grinding wheel technology, which is applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve the problem that the particle size and porosity of the pores cannot meet the processing requirements, and achieve good self-sharpening and not easy to block , the effect of good application prospects

Inactive Publication Date: 2017-02-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the vitrified bond diamond grinding wheel can form some voids by the accumulation of its own particles, the pore size and porosity are far from meeting the processing requirements

Method used

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  • Diamond grinding wheel with ceramic binders and production method thereof
  • Diamond grinding wheel with ceramic binders and production method thereof
  • Diamond grinding wheel with ceramic binders and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of vitrified bond diamond grinding wheel is as follows:

[0031] Step (1): Sieve the alumina hollow spheres to obtain ceramic hollow spheres with a particle size of 100-800 μm and a density of 0.5 g / cm 3 .

[0032] Step (2): 6.24g diamond powder (1-50μm), 10.92g green silicon carbide powder (2-60μm), 4.68g alumina hollow sphere, 9.36g vitrified bond (G068 of Foshan Tao Yise Glaze Co., Ltd. , 1-20 μm) was put into the filling mill and mixed for 2 hours to obtain the mixed powder;

[0033] Step (3): Sieve the mixed powder of step (2), pour it into a grinding bowl, use the solution obtained by mixing phenolic resin and ethanol at a mass ratio of 1:1 as a pre-adhesive, add 3g of pre-adhesive, Stir fully and evenly, and sieve to obtain pre-adhesive powder;

[0034] Step (4): Weigh 1.3g of the pre-bonded powder in step (3) and put it into a forming abrasive tool, and cold press it at room temperature at 5Mpa to obtain a grinding wheel sheet with a th...

Embodiment 2

[0038] The preparation method of vitrified bond diamond grinding wheel is as follows:

[0039] Step (1): Sieve the alumina hollow spheres to obtain ceramic hollow spheres with a particle size of 100-800 μm and a density of 0.8 g / cm 3 .

[0040] Step (2): 15.6g diamond powder (1-50μm), 7.8g green silicon carbide powder (2-60μm), 1.56g aluminum oxide hollow sphere, 6.24g vitrified bond (G068 of Foshan Tao Yise Glaze Co., Ltd. , 1-20 μm) was put into the filling mill and mixed for 2 hours to obtain the mixed powder;

[0041] Step (3): Sift the mixed powder of step (2), pour it into a grinding bowl, use the solution obtained by mixing phenolic resin and ethanol at a mass ratio of 1:1 as a pre-adhesive, and add 2.5g of pre-adhesive , fully stirred evenly, and sieved to obtain pre-adhesive powder;

[0042] Step (4): Weigh 1.3g of the pre-bonded powder in step (3) and put it into a forming abrasive tool, and cold press it at room temperature at 5Mpa to obtain a grinding wheel shee...

Embodiment 3

[0045] The preparation method of vitrified bond diamond grinding wheel is as follows:

[0046] Step (1): Sieve alumina hollow spheres to obtain ceramic hollow spheres with a particle size of 100-800 μm and a density of 1 g / cm 3 .

[0047] Step (2): 14.04g diamond powder (1-50μm), 9.36g green silicon carbide powder (2-60μm), 3.12g aluminum oxide hollow spheres, 4.68g vitrified bond (G068 of Foshan Tao Yise Glaze Co., Ltd. , 1-20 μm) was put into the filling mill and mixed for 2 hours to obtain the mixed powder;

[0048] Step (3): Sieve the mixed powder of step (2), pour it into a grinding bowl, use the solution obtained by mixing phenolic resin and ethanol at a mass ratio of 1:1 as a pre-adhesive, add 2g of pre-adhesive, Stir fully and evenly, and sieve to obtain pre-adhesive powder;

[0049] Step (4): Weigh 1.3g of the pre-bonded powder in step (3) and put it into a forming abrasive tool, and cold press it at room temperature at 5Mpa to obtain a grinding wheel sheet with a ...

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Abstract

The invention discloses a diamond grinding wheel with ceramic binders and a production method thereof. The diamond grinding wheel with the ceramic binders is composed of, by weight, 20-50% of diamond powder, 25-35% of green silicon carbide powder, 5-15% of ceramic hollow balls and 15-30% of the ceramic binders. According to the diamond grinding wheel with the ceramic binders and the production method thereof, the ceramic hollow balls are added, air holes are formed in the grinding wheel, the ceramic binders are used, and therefore the grinding wheel has the advantages that the self-sharpening property is good, the strength is high, the grinding efficiency is high, the rigidity is good, blocking and burning of work-pieces do not occur easily in the grinding process, machining of high-brittleness, hard and difficult-to-machine materials has high grinding efficiency and the application prospects are wide.

Description

technical field [0001] The invention belongs to the technical field of precision grinding, and relates to a vitrified bond diamond grinding wheel and a preparation method thereof. [0002] technical background [0003] Ultra-precision cutting of diamond abrasive tools has achieved great success in processing soft metal materials such as copper, aluminum and their alloys, but in the precision and ultra-precision machining of various hard and brittle materials such as engineering ceramics, semiconductors, optical glass, and stone, However, it relies heavily on grinding, polishing and other processing methods. Although these methods can achieve high precision and extremely low surface roughness, the processing efficiency is low. In terms of ultra-precision processing of complex shapes such as aspheric parts, etc. The application effect is limited. Vitrified bond diamond grinding wheel is an effective grinding method for grinding high brittle and hard materials. Compared with me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/14B24D18/00
CPCB24D3/14B24D18/00B24D18/0063
Inventor 张凤林王超超李伟雄王鹏潘继生
Owner GUANGDONG UNIV OF TECH
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