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Method for grinding zirconia ceramics

A zirconia ceramic and grinding method technology, which is applied in chemical instruments and methods, grinding devices, grinding machine tools, etc., can solve the problems of low yield and low efficiency of processed products, achieve high yield, reduce processing difficulty, and improve processing efficiency. effect of time reduction

Active Publication Date: 2019-01-25
DONGGUAN HUAJING POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a grinding method for zirconia ceramics in view of the problems that the current grinding methods for zirconia ceramics have low efficiency and the yield rate of processed products is low.

Method used

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  • Method for grinding zirconia ceramics
  • Method for grinding zirconia ceramics

Examples

Experimental program
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Effect test

Embodiment 1

[0106] (1) Grinding treatment of zirconia ceramics with grinding fluid and diamond grinding wheel. Among them, the particle size of the diamond abrasive used to prepare the diamond grinding wheel is 80 μm; the linear speed of the diamond grinding wheel is 35 m / s, the spindle speed is 1100 r / min, and the back cutting amount is 0.015 mm; the time for grinding is 6 min.

[0107] (2) The ground zirconia ceramics were roughly ground with boron nitride grinding liquid and cast iron disk. Among them, the boron nitride grinding liquid includes 30g of boron nitride fine powder, 2g of dispersant polyoxyethylene ether, 1g of suspending agent polyacrylamide, 1g of antirust agent dimethylformamide and 90g of water, boron nitride The particle size of the micropowder is 65μm, and the material of the cast iron disc is ductile iron; during rough grinding, the rotational speed of the cast iron disc is 30r / min; the processing pressure is 100g / cm 2 , the flow rate of the boron nitride grinding l...

Embodiment 2

[0112] (1) Grinding treatment of zirconia ceramics with grinding fluid and diamond grinding wheel. Wherein, the particle size of the diamond abrasive for preparing the diamond grinding wheel is 180 μm; the linear speed of the diamond grinding wheel is 35m / s, the spindle speed is 1100r / min, and the back cutting amount is 0.02mm; the removal amount of the grinding process is 0.2mm; The grinding time is 4min.

[0113] (2) The ground zirconia ceramics were roughly ground with boron nitride grinding liquid and cast iron disk. Among them, the boron nitride grinding liquid includes 5g of boron nitride fine powder, 1g of dispersant nonylphenol polyoxyethylene ether, 0.1g of suspending agent sodium polyacrylate, 0.1g of antirust agent nitrogen nitrogen dimethylacetamide and 50g of water, the particle size of boron nitride micropowder is 65μm, and the material of the cast iron disc is gray cast iron; during rough grinding, the rotational speed of the cast iron disc is 30r / min; the proc...

Embodiment 3

[0118] (1) Grinding treatment of zirconia ceramics with grinding fluid and diamond grinding wheel. Wherein, the particle size of the diamond abrasive for preparing the diamond grinding wheel is 180 μm; the linear speed of the diamond grinding wheel is 35m / s, the spindle speed is 1100r / min, and the back cutting amount is 0.02mm; the removal amount of the grinding process is 0.2mm; The grinding time is 4min.

[0119] (2) The ground zirconia ceramics were roughly ground with boron nitride grinding liquid and cast iron disk. Wherein, the boron nitride grinding liquid includes 20g of boron nitride micropowder, 2g of dispersant triethanolamine, 1g of suspending agent sodium polyacrylate, 1g of antirust agent nitrogen nitrogen dimethylethanolamine and 80g of water, boron nitride micropowder The particle size of the cast iron disc is 45 μm, and the material of the cast iron disc is nodular cast iron; during rough grinding, the rotational speed of the cast iron disc is 40r / min; the pr...

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Abstract

The invention relates to a method for grinding zirconia ceramics, which comprises the following steps of: grinding the zirconia ceramics by using grinding liquid and a diamond grinding wheel for 4 minutes to 6 minutes; carrying out coarse grinding treatment on the zirconia ceramics for 5 minutes to 6 minutes by adopting boron nitride grinding liquid and a cast iron disc, carrying out medium grinding treatment on the zirconia ceramics for 20 minutes to 30 minutes by adopting a first diamond grinding liquid and a first copper disc, carrying out fine grinding treatment on the zirconia ceramics for 15 minutes to 25 minutes by adopting a second diamond grinding liquid and a second copper disc, and polishing the zirconia ceramics for 50 minutes to 70 minutes by adopting a polishing pad and a polishing solution. According to the method for grinding zirconia ceramics, grinding treatment is firstly carried out, then rough grinding treatment is carried out to reduce surface roughness and flatness, middle grinding treatment and fine grinding treatment are further carried out to reduce crack depth, surface roughness and flatness, so the processing difficulty during polishing treatment is reduced, the total processing time is less than 130 minutes, the processing time is obviously reduced, the processing efficiency is improved, and the yield of processed products is improved.

Description

technical field [0001] The invention relates to the technical field of zirconia ceramic processing, in particular to a grinding method of zirconia ceramics. Background technique [0002] Zirconia ceramics are widely used in structural ceramics, functional ceramics and decorations due to their advantages of high toughness, high bending resistance and high wear resistance. Therefore, there are higher requirements for the surface processing technology of zirconia ceramics. Require. However, zirconia ceramics have properties such as high hardness, corrosion resistance, and high brittleness, which make their grinding and polishing more complicated. In order to achieve higher surface smoothness, the conventional grinding and polishing process of zirconia ceramics generally includes rough Grinding, fine grinding and polishing are three-step processes. However, the current grinding and polishing methods often require a long processing time and low efficiency to achieve a good surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B19/22B24B37/00B24B29/02C09K3/14
CPCB24B1/00B24B19/22B24B29/02B24B37/00C09K3/1472
Inventor 张文杰谢庆丰彭毅萍
Owner DONGGUAN HUAJING POWDER METALLURGY
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