Efficient boron carbide grinding fluid and method for preparing same

Abstract

The invention discloses efficient boron carbide grinding fluid and a method for preparing the same, and relates to the field of technologies for grinding sapphire. The efficient boron carbide grinding fluid comprises, by weight, 5-25 parts of boron carbide micro-powder, 1-2 parts of dispersing agents, 0.5-1 part of water-based thickeners, 0.5-1 part of anti-settling agents, 0.5-5 parts of synergists, 0.5-1 part of antirust agents and 65-92 parts of substrate fluid. The substrate fluid can be one of pure water, isopropyl alcohol and polyhydric alcohol or a mixture of the pure water, the isopropyl alcohol and the polyhydric alcohol, and various components of the substrate fluid have equal weight parts or other proportions when the substrate fluid comprises the mixture of the pure water, the isopropyl alcohol and the polyhydric alcohol. The efficient boron carbide grinding fluid and the method have the advantages that the efficient boron carbide grinding fluid is long in service life, good in stability and applicable to rough grinding for processing sapphire wafers, the A-direction and M-direction sapphire grinding rates can be increased, processed products are good in surface flatness, and the like.

Description

technical field [0001] The invention relates to the technical field of sapphire grinding, in particular to a high-efficiency boron carbide grinding liquid and a preparation method thereof. Background technique [0002] Sapphire glass, similar to corundum, has a hardness of 9. Its advantages are higher hardness than ordinary glass, good thermal properties, excellent electrical and dielectric properties, and chemical corrosion resistance. It is resistant to high temperature and conducts heat. Good, high hardness, infrared transmission, and good chemical stability. Therefore, it is often used to replace other optical materials to make optical elements, infrared optical windows, etc. It is widely used in infrared and far infrared military equipment, and is used to make high-grade The mirror of the watch and the touch screen of the mobile phone. [0003] In the sapphire processing industry, A-direction and M-direction sapphires are more difficult to process than C-direction sapp...

AI Technical Summary

Problems solved by technology

[0003] In the sapphire processing industry, A-direction and M-direction sapphires are more difficult to process than C-direction sapphires. Generally, the processing time of boron carbide abrasives is long, the removal rate is low, and the mechanical loss is large, which increases the cost of machines and labor.

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