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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 the polishing fluid system and affecting the polishing effect. These problems limit the application of diamond polishing fluid

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
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Effect test

preparation example Construction

[0023] The preparation method of above-mentioned aqueous diamond polishing fluid, comprises the steps:

[0024] After mixing deionized water, dispersant, suspension aid and diamond micropowder, disperse into a diamond micropowder solution with loose precipitation. The dispersion method can adopt one or more combinations of mechanical stirring, ultrasonic oscillation, and mechanical ball milling. The dispersion time is preferably 1-2 hours.

[0025] Add the suspending agent into the diamond micropowder solution, and continue to disperse to obtain a suspended and stable water-based diamond polishing liquid. The dispersion method can adopt one or more combinations of mechanical stirring, ultrasonic oscillation, and mechanical ball milling. The dispersion time is preferably 1-2 hours.

[0026] Finally, add a bactericide, a defoamer and a pH regulator, and adjust the pH value of the water-based diamond polishing solution as required, and the adjustment range is 2-12.

[0027] T...

Embodiment 1

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

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

Embodiment 2

[0033] Take a beaker, add 80wt% deionized water, 1wt% sodium hexametaphosphate, 4wt% ethylenediamine, 2wt% single crystal diamond micropowder with a median particle diameter D50 of 3.516 μm, and ultrasonically vibrate for 2 hours. A diamond micropowder solution dispersed into loose precipitates 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 value to 8 with phosphoric acid, and make up the remaining deionized water to obtain a stable suspension The weight ratio is the diamond polishing liquid of 2wt%.

[0034] Use the polishing liquid prepared above 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 rotational speed is 150rpm, the flow rate of the polishing liquid is 5mL / min, and the polishing time is 5min. After polishing, the surface roughness of the stai...

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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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