High-efficiency diamond polishing agent and preparation method thereof

Abstract

The invention discloses a high-efficiency diamond polishing agent which is prepared from the following raw materials in percentage by weight: 5-20 percent of ultra-precision diamond micro powder, 10-20 percent of ethyl orthosilicate, 20-30 percent of solvent, 0.2-0.8 percent of strong acid, 10-30 percent of surface active agent, 10-25 percent of wetting agent, 5-15 percent of dispersing agent and 0.1-5 percent of PH conditioning agent. According to the high-efficiency diamond polishing agent, the diamond micro powder is subjected to surface modification by using ethyl orthosilicate, so that a silicon dioxide coating layer is formed on the surface of the diamond micro powder, and during polishing, the coating layer plays a role in buffering the diamond micro powder on the inner layer; through performing multiple times of crushing and shaping on the diamond micro powder and improving surface modification process, the morphology of the diamond micro powder is closer to an octahedron; the prepared polishing agent has a better polishing effect to high-hardness metal materials such as high-carbon steel, also has a better polishing effect to crisp and hard materials such as Cr2O3, ceramics, jade and quartz, and is capable of completely preventing the damage on the surface of a material to be polished, and free from generating scratches, black points, and particle surface residues during polishing.

Description

technical field [0001] The invention relates to a high-efficiency diamond polishing agent and a preparation method thereof. Background technique [0002] With a Mohs hardness of 10, diamond is much harder than other materials. As a superhard material, diamond is widely used in high-speed, high-efficiency grinding and precision, ultra-precision grinding and other fields. In addition to being used in the field of material processing such as cutting tools, diamond powder is also more and more popular in the field of grinding and polishing technology. , which is characterized by fast grinding speed, which can prevent quality defects such as scratches, black spots, and particle surface residues on the polished surface during the polishing process, and has the characteristics of no corrosion, low cost, environmental protection, and non-toxicity. [0003] CN102391789A discloses a nano-diamond polishing liquid, which can be used for the polishing of soft materials such as glass, so...

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Problems solved by technology

[0003] CN102391789A discloses a nano-diamond polishing liquid, which can be used for the polishing of soft materials such as glass, solves the problem of nano-diamond agglomeration, and can make it stably suspended in water, but this invention does not solve the problem of polishing well. Quality problems, in addition, the invention cannot be used for polishing of high-hard metal materials such as high-carbon steel and soft materials such as ceramics, and the scope of application is very narrow

[0004] CN1940003A discloses a water-based diamond polishing liquid, which can be suspended stably without settling, but still does not solve the polishing quality problem well

[0005] CN103525314A discloses a high-efficiency diamond lubricating and cooling polishing liquid. The polishing liquid uses silicon carbide micropowder, aluminum oxide micropowder and chromium oxide micropowder as grinding aids. The prepared polishing agent is mainly used for the polishing of metallographic samples. The polishing agent to Cr 2 o 3 , ceramics, jade, quartz and other materials, the petrographic analysis and polishing effect is still not good

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