Water-based diamond polishing solution and preparation method thereof

A technology of diamond and polishing liquid, applied in the field of polishing liquid, can solve the problems of easy precipitation, poor stability of polishing liquid system, limited application of diamond polishing liquid, etc., and achieve the effect of high polishing efficiency and good stability

Inactive Publication Date: 2015-01-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large specificity of micron-sized diamond powder, it is easy to precipitate, resulting in poor stability of

Method used

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  • Water-based diamond polishing solution and preparation method thereof
  • Water-based diamond polishing solution and preparation method thereof
  • Water-based diamond polishing solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] The preparation method of the above-mentioned aqueous diamond polishing liquid includes the following steps:

[0024] After mixing deionized water, dispersant, suspending aid, and diamond powder, they are dispersed into a precipitated loose diamond powder solution. The dispersion method can adopt one or more of mechanical stirring, ultrasonic vibration, and mechanical ball milling. The appropriate dispersion time is 1-2 hours.

[0025] The suspending agent is added to the diamond powder solution, and the dispersion is continued to obtain a suspension and stable aqueous diamond polishing solution. The dispersion method can adopt one or more of mechanical stirring, ultrasonic vibration, and mechanical ball milling. The appropriate dispersion time is 1-2 hours.

[0026] Finally, add bactericide, defoamer and pH adjuster, adjust the pH value of the water-based diamond polishing liquid as needed, and the adjustment range is 2-12.

[0027] The above water-based diamond polishing l...

Example Embodiment

[0029] Example 1

[0030] Take a beaker, add 80wt% of deionized water, 0.5wt% of polyvinyl alcohol, 2wt% of polyethylene glycol, 2wt% of single crystal diamond powder with a median diameter D50 of 6.065μm in sequence, and ultrasonically shake for 2 hours , To obtain a diamond powder solution dispersed into a loose precipitate. Then add 1.5wt% magnesium aluminum silicate, continue magnetic stirring for 1 hour, and finally add 0.2wt% sodium benzoate and 0.2wt% dimethicone, adjust the pH to 9 with sodium carbonate, and make up the remaining deionized water. A diamond polishing liquid with a stable suspension weight ratio of 2 wt% was prepared.

[0031] Use the above-prepared polishing liquid to polish stainless steel on an automatic polishing machine, and the surface roughness of the workpiece before polishing is about 3 μm. The polishing pressure is 3.0kPa, the rotating speed is 150rpm, the polishing fluid flow is 5mL / min, and the polishing time is 5min. After polishing, the surfac...

Example Embodiment

[0032] Example 2

[0033] Take a beaker, add 80wt% of deionized water, 1wt% of sodium hexametaphosphate, 4wt% of ethylenediamine, 2wt% of single crystal diamond powder with a median diameter of D50 of 3.516μm in sequence, and ultrasonically shake for 2 hours. A solution of diamond fine powder dispersed into a loose precipitate is obtained. Then add 1.5wt% bentonite, continue magnetic stirring for 1 hour, finally add 0.2wt% sodium benzoate and 0.2wt% simethicone, adjust the pH to 8 with phosphoric acid, make up the balance of deionized water to obtain a stable suspension The weight ratio is 2wt% diamond polishing liquid.

[0034] Use the above-prepared polishing liquid to polish stainless steel on an automatic polishing machine. The surface roughness of the workpiece before polishing is about 2 μm. The polishing pressure is 3.0kPa, the speed is 150rpm, the polishing fluid flow is 5mL / min, and the polishing time is 5min. After polishing, the surface roughness of the stainless steel...

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Abstract

The invention provides a water-based diamond polishing solution. The water-based diamond polishing solution consists of the following components in percentage by weight: 0.01-10 percent of diamond micro-powder, 0.2-6 percent of a dispersing agent, 0.1-3 percent of a suspending agent, 0.1-5 percent of a pH adjusting agent, 0.1-0.5 percent of a sterilizing agent, 0.1-0.5 percent of a deforming agent, 2-50 percent of a suspension aid and 40-80 percent of deionized water. The invention further provides a preparation method of the water-based diamond polishing solution.

Description

technical field [0001] The invention relates to a polishing liquid for grinding and polishing, in particular to a water-based diamond polishing liquid and a preparation method thereof. Background technique [0002] Polishing fluid is a key element in polishing technology, and its performance directly affects the surface quality after polishing. Diamond powder is widely used in various fields such as machinery, electronics, metallurgy, construction, and national defense. It is an ideal abrasive for grinding and polishing high-hard materials such as stainless steel, hard alloy, glass, gemstone, ceramics, and integrated circuits. Diamond micropowder can be used not only as granular abrasive, but also as oily or watery polishing liquid, abrasive paste, abrasive sheet, sandpaper, etc. With the rapid development of precision machining, diamond polishing fluid has developed rapidly in recent years. Compared with the grinding paste, the polishing liquid is more suitable for large-...

Claims

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Application Information

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IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 张顾耀张莎唐传梅马洪列李荣得
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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