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A preparation method of polishing powder for zirconium dioxide ceramic polishing

A technology of ceramic polishing powder and zirconia, which is applied in the direction of polishing compositions containing abrasives, etc., can solve the problem that the wear resistance cannot meet the requirements of zirconia ceramic polishing, achieve the improvement of polishing friction hardness, and facilitate industrial production , the effect that the conditions are easy to control

Inactive Publication Date: 2017-04-19
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compounding of several oxides can overcome the above-mentioned deficiencies. Chinese patent application CN101362925B discloses a compound polishing powder for polishing optical elements and its preparation method and polishing process. There are 0.5 to 3 parts of dichromium trioxide and 1.0 Part of aluminum oxide, but the wear resistance of this composite polishing powder can not meet the polishing requirements of zirconia ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of zirconia ceramic polishing powder, in reactor, add the cerium nitrate of 8g respectively, the tin chloride of 30g is dissolved in water, then add the calcium carbonate of 8g, the silicon dioxide of 5g, the nitriding of 42g Silicon, stir to form a slurry, then add 7mL of ammonia water while stirring, water is not included in the components, under normal temperature and pressure, stir for 3 hours, separate solid and liquid, wash, roast at 1000 ° C for 10 hours, cool, and then crushed by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

Embodiment 2

[0026] A kind of preparation method of zirconium dioxide ceramic polishing powder, in reactor, add respectively the cerium nitrate of 6g, the tin chloride of 25g is dissolved in water, then add the calcium carbonate of 13g, the silicon dioxide of 8g, the nitriding of 43g Silicon, stir to form a slurry, then add 6mL of ammonia water while stirring, water is not included in the components, under normal temperature and pressure, stir for 2 hours, separate solid and liquid, wash, roast at 1020°C for 11 hours, cool, and crush by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

Embodiment 3

[0028] A kind of preparation method of zirconium dioxide ceramic polishing powder, in reactor, add respectively the cerium nitrate of 12g, the tin chloride of 27g is dissolved in water, then add the calcium carbonate of 7g, the silicon dioxide of 4g, the nitriding of 40g Silicon, stir to form a slurry, then add 10mL of ammonia water while stirring, water is not included in the component, under normal temperature and pressure, stir for 4 hours, separate solid and liquid, wash, roast at 1060 ° C for 12 hours, cool, and crush by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

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Abstract

The invention discloses a preparation method of zirconia ceramic polishing powder, which is characterized in that the method has the following process steps: in a reactor, 6% to 12% of cerium nitrate, 22% to 32% Dissolve tin chloride in water, then add 6%~13% calcium carbonate, 3%~7% silicon dioxide, 38%~48% silicon nitride, stir to form a slurry, and then add 3%~10% Add ammonia water during stirring, the sum of each component is 100%, water is not included in the component, under normal temperature and pressure, stir for 2~4 hours, separate solid and liquid, wash, roast at 1000℃~1100℃ for 10~12h, cool Finally, the zirconia ceramic polishing powder is obtained by jet crushing, and the particle size of the obtained zirconia ceramic polishing powder is within the range of 0.2-2.0 μm. The polishing powder has high grinding hardness, good powder polishing effect, high gloss, no scratches, high flatness, and less powder consumption.

Description

technical field [0001] The invention relates to the technical field of preparation of polishing powder, in particular to a preparation process of zirconia ceramic polishing powder and its use in zirconia ceramic polishing. Background technique [0002] In terms of structural ceramics, zirconia ceramics are widely used in the field of structural ceramics due to their high toughness, high flexural strength, high wear resistance, excellent heat insulation performance, and thermal expansion coefficient close to steel. Mainly include: Y-TZP grinding balls, dispersing and grinding media, nozzles, ball valve seats, zirconia molds, micro fan shafts, optical fiber pins, optical fiber sleeves, wire drawing dies and cutting tools, wear-resistant knives, watch cases and Watch straps, bracelets and pendants, ball bearings, golf light bats and other room temperature wear-resistant parts, etc. In terms of functional ceramics, its excellent high temperature resistance is used as induction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 李慧芝李冬梅杨春霞
Owner UNIV OF JINAN
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