Aqueous grinding liquid for optical sapphire

Abstract

The invention relates to the technical field of optical jewel grinding, and especially relates to an aqueous grinding liquid for optical sapphire. The aqueous grinding liquid comprises, by weight, 1.8-3.1% of triethanolamine borate, 2.7-5.2% of polyethylene glycol, 13-22% of glycerin, 13-23% of sorbitol, 0.8-2.2% of a lubricating and anti-wear enhancer, 0.2-1.2% of a settling agent, 0.2-0.6% of a bactericide, and the balance of pure water, wherein the addition amount of the bactericide is extremely small, and the bactericide has especially good anticorrosion and deodorization properties, has long service life, and has low damages to workers. The aqueous grinding liquid for optical sapphire is prepared through strict complexing of above components which are dissolved in each other and are compatible with each other, and has the advantages of moderate pH value, enhanced lubrication effect, low cost, long service life, and realization of no stink or decaying after being disposed at 30-40DEG C for 1-15d, and chippings are solidified after the aqueous grinding liquid settles, and can be prized through a tool blade, so the above formula is very reasonable.

Description

Technical field [0001] The invention relates to the technical field of optical gemstone grinding, in particular to an optical sapphire water-based grinding fluid. Background technique [0002] With the advanced level of high-tech research and development, high-definition cameras on the market generally use sapphire material, which is ten times harder than the previous optical glass material silica. For example, glass processing and cutting such as the touch screen panel of a mobile phone cover, but when used on sapphire, the sapphire is prone to yarn edges and chipping, and the life of the metal grinding head is relatively short. In addition, the existing grinding fluid uses OP-10 as the raw material. Although OP-10 has the same lubricating performance as glycerin, it has a fatal disadvantage that the foam is particularly large when the equipment is repeatedly cycled. Some customers see it in the equipment. Unclear product location. The cloud points of BASF's EO block polyether...

AI Technical Summary

Problems solved by technology

Such as mobile phone cover touch screen panel and other glass processing and cutting, but if it is processed on sapphire, the sapphire is easy to yarn and chip, and the life of the metal grinding head is relatively short

In addition, the existing grinding fluid uses OP-10 as raw material. Although the lubricating performance of OP-10 is the same as that of glycerin, it has a fatal shortcoming that the foam is particularly large when the equipment is repeatedly cycled. Some customers see it in the equipment. Unclear product location

The cloud points of the BASF EO block polyether and PO block polyether contained in it are 37-42 and 47-53 respectively; after compounding, there is a layer (surface) of floating oil, which is difficult to clean for optics; among them, Midea Although "sodium benzoate" has certain anti-corrosion properties, it is added in a large amount and it is a powder. The use of powder is short and the service life is short. Moreover, this sodium benzoate is also harmful to the health of the workers, and the defects are obvious.

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