Water-based grinding fluid suspension additive

An additive and grinding fluid technology, applied in the field of water-based grinding fluid suspension additives, can solve the problems of high abrasive loss of grinding fluid, reduced grinding and polishing efficiency, slow grinding speed, etc. Effect of Grinding Rate

Active Publication Date: 2017-07-11
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the commercially available abrasive liquids use alumina, cerium oxide, silicon carbide, boron carbide, and garnet as abrasives, supplemented by other oil-based dispersing aids to obtain abrasive liquids. This type of abrasive liquid has low polishing precision and slow grinding speed. Difficult to clean, far from meeting the needs of existing production technologies
There are also a small number of manufacturers using water-based abrasives, but due to poor dispersion and suspension performance, ions are easy to reunite, resulting in scratches on the workpiece. At the same time, due to poor suspension cleaning performance, the abrasive wears quickly and is easy to adhere to the surface of the workpiece and the machine. , causing the abrasive to sink to the bottom and agglomerate, reducing the grinding and polishing efficiency
After grinding, there are many abrasives remaining on the surface of the workpiece, which is difficult to clean, which brings difficulties to the normal production in the later stage
It has failed to achieve standardization and serialization, and cannot fully meet the grinding requirements of various industrial fields.

Method used

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  • Water-based grinding fluid suspension additive
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 3 parts of suspension stabilizer SF-1, 5 parts of humectant VK-N80, 8 parts of tripropylene glycol methyl ether, 76 parts of alkaline electrolyzed water, 8 parts of ammonium polyphosphate, among which ammonium polyphosphate with a degree of polymerization of 10 is selected.

[0028] The preparation method of above-mentioned embodiment:

[0029] 1) Add the suspension stabilizer SF-1 into the alkaline electrolyzed water, fully stir and swell with a tissue homogenizer at a speed of 4000r / min, and obtain a transparent gel for use;

[0030] 2) Dissolve humectant VK-N80 and ammonium polyphosphate with alkaline electrolyzed water to obtain a solution for later use;

[0031] 3) Slowly add the material obtained in step 1) into tripropylene glycol methyl ether by using a nano-disperser while adding and dispersing at room temperature, and fully stir and disperse;

[0032] 4) Preheat the material obtained in the above step 3) to 78°C by microwave, and slowly add the material in st...

Embodiment 2

[0034] 5 parts of suspension stabilizer SF-1, 1 part of humectant VK-N80, 7 parts of tripropylene glycol methyl ether, 66 parts of alkaline electrolyzed water, 6 parts of ammonium polyphosphate, and 15 parts of triethanolamine. Among them, ammonium polyphosphate with a degree of polymerization of 6 is selected.

[0035] The preparation method of above-mentioned embodiment:

[0036] 1) Add the suspension stabilizer SF-1 into the alkaline electrolyzed water, fully stir and swell with a tissue homogenizer at a speed of 4000r / min, and obtain a transparent gel for use;

[0037] 2) Dissolve humectant VK-N80, ammonium polyphosphate, and triethanolamine in alkaline electrolyzed water to obtain a solution for later use;

[0038] 3) Slowly add the material obtained in step 1) into tripropylene glycol methyl ether by using a nano-disperser while adding and dispersing at room temperature, and fully stir and disperse;

[0039] 4) Preheat the material obtained in the above step 3) to 75°C...

Embodiment 3

[0041] 2 parts of suspension stabilizer SF-1, 4 parts of humectant VK-N80, 5 parts of tripropylene glycol methyl ether, 81 parts of alkaline electrolyzed water, 5 parts of ammonium polyphosphate, 2 parts of thickener ACRYSOL TT-935, lubricant MPEG -600 0.5 parts, defoamer Surfynol DF-750.5 parts. Among them, ammonium polyphosphate with a degree of polymerization of 18 is selected.

[0042] The preparation method of above-mentioned embodiment:

[0043] 1) Add the suspension stabilizer SF-1 and the thickener ACRYSOL TT-935 into the alkaline electrolyzed water, and use a tissue homogenizer to fully stir and swell at a speed of 4000r / min to obtain a transparent gel for use;

[0044] 2) Dissolve humectant VK-N80, ammonium polyphosphate, lubricant MPEG-600, and defoamer Surfynol DF-75 in alkaline electrolyzed water to obtain a solution for later use;

[0045] 3) Slowly add the material obtained in step 1) into tripropylene glycol methyl ether by using a nano-disperser while adding...

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Abstract

The invention discloses a water-based grinding fluid suspension additive. The water-based grinding fluid suspension additive comprises main components: a suspension stabilizer SF-1, a thickening agent ACRYSOL TT-935, a moisturizing agent VK-N80, ammonium polyphosphate, tripropylene glycol monomethyl ether, a lubricant MPEG-600, a defoaming agent Surfynol DF-75, and alkaline electrolysis water. The water-based grinding fluid suspension additive can be used for uniformly dispersing and suspending various types of unprocessed abrasive particles, such as alumina, zirconia, silicon carbide, boron carbide, natural or synthetic diamond, garnet and the like. The water-based grinding fluid suspension additive has excellent suspension performance, can save as much as 50% of an abrasive, and also can achieve the same or better grinding rate and grinding quality. The water-based grinding fluid suspension additive has excellent chemical and physical performance, is widely applied in industrial grinding, and is suitable for the field of sapphire grinding.

Description

technical field [0001] The invention relates to a suspension additive for water-based grinding fluid, which belongs to the field of grinding and polishing. [0002] technical background [0003] With the development of industry, the sapphire industry has higher and higher requirements for grinding precision. Conventional backward grinding technology and grinding additives can no longer meet the market demand. The existing market demand not only requires the grinding liquid to completely disperse and suspend the grinding powder particles for a long time, but also to keep the physical and chemical properties of the grinding liquid stable for a long time. This poses new challenges to the existing slurry additive market. [0004] At present, most of the commercially available abrasive liquids use alumina, cerium oxide, silicon carbide, boron carbide, and garnet as abrasives, supplemented by other oil-based dispersing aids to obtain abrasive liquids. This type of abrasive liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 李永双
Owner CHINA THREE GORGES UNIV
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