Cutting fluid and preparation method thereof

Abstract

The present invention relates to a cutting fluid and a preparation method thereof. The components in the cutting fluid formula comprise, by weight, 22-42 parts of triethanolamine, 9-15 parts of benzoic acid, 15-22 parts of succinic acid, 8-16 parts of boric acid, 7-15 parts of ethylenediamine tetraacetic acid tetrasodium salt, 9-16 parts of sodium thiosulfate, 6-17 parts of glycerol, and the balance of water. The cutting fluid preparation method comprises: (1) weighing triethanolamine, benzoic acid, succinic acid, boric acid and water according to a certain weight ratio, heating to a temperature of 85 DEG C, and uniformly stirring; (2) adding sodium thiosulfate and glycerol according to a certain weight ratio to the obtained solution, uniformly stirring, carrying out cooling precipitation, and filtering to take the supernatant; and (3) taking the supernatant according to a certain weight ratio, adding ethylenediamine tetraacetic acid tetrasodium salt, and uniformly mixing to obtain the finished product. Results of a plurality of tests show that the cutting fluid of the present invention has advantages of long service life, low production cost and environmental protection compared with the cutting fluid in the prior art.

Description

technical field [0001] The invention relates to a cutting fluid and a preparation method thereof. Background technique [0002] In the cold metal processing of automobiles, in order to ensure the accuracy and smoothness of the workpiece surface and prolong the service life of cutting tools, it is necessary to use metal cutting fluid that can lubricate and cool. Before the 1980s, most of the metal cutting fluids used were low-viscosity machine oils or emulsified oily emulsions. These cutting fluids have the cooling and lubricating effects required for metal cold processing, but they are costly and seriously pollute the environment. After entering the 1990s, non-oily cutting fluids with water as the dispersion medium came out one after another. This kind of cutting fluid is mainly composed of water, and contains lubricants, antioxidants, antirust agents, etc., and has the cooling, lubricating, cleaning and other properties required for metal cold processing. However, such cu...

AI Technical Summary

Problems solved by technology

Before the 1980s, most of the metal cutting fluids used were low-viscosity machine oils or emulsified oily emulsions. These cutting fluids have the cooling and lubricating effects required for metal cold processing, but the cost is high and the environmental pollution is serious.

At present, there are still many cutting fluids sampling sodium nitrite as an anti-rust component of synthetic cutting fluids. Sodium nitrite has good anti-rust performance, but it is actually a potential carcinogen