A cutting fluid suitable for fluorine-free refrigeration industry and its preparation method

Abstract

The invention provides a cutting fluid suitable for freon-free refrigeration industry and a preparation method thereof. The preparation method comprises the following steps of: weighing monoethanolamine, fatty acid amide and a lubricating assistant in parts by weight, and stirring and mixing in advance at 50 to 60 DEG C for 2 hours; next, weighing pure water, triethanolamine, a surfactant, benzotriazole and a non-silicone oil defoamer in parts by weight, and proportionally stirring and mixing the materials; sequentially adding the pure water, triethanolamine, surfacant, benzotriazole and the non-silicone oil defoamer, controlling the stirring speed at 100r / min and the stirring time in the range from 1 to 2 hours, thus obtaining the cutting fluid suitable for freon-free refrigeration industry. The cutting fluid provided by the invention is free of utilization of an inorganic salt and fat soap and contains no sulfur, phosphorus and chlorine components; therefore, the cutting fluid is low in aluminium corrosivity and good in defoaming ability.

Description

technical field [0001] The invention relates to a cutting fluid, in particular to a cutting fluid suitable for the fluorine-free refrigeration industry and a preparation method thereof. Background technique [0002] Traditional cutting fluid is made of inorganic salt (nitrite), fatty soap, surfactant, anti-rust additive, lubricating additive, etc., but if it is used in the fluorine-free refrigeration industry, its residue will cause capillary blockage of the refrigeration system , high energy consumption and even scrapping of the refrigeration system, and the traditional cutting fluid is also corrosive to aluminum, which is harmful to product manufacturing, and the defoaming ability needs to be improved. [0003] At present, the domestic refrigeration industry is realizing the conversion of fluorine-free environmental protection technology, and there is an urgent need for a cutting fluid for parts and components that can adapt to new refrigerants. Contents of the invention...

AI Technical Summary

Problems solved by technology

[0002] Traditional cutting fluid is made of inorganic salt (nitrite), fatty soap, surfactant, anti-rust additive, lubricating additive, etc., but if it is used in the fluorine-free refrigeration industry, its residue will cause capillary blockage of the refrigeration system , high energy consumption and even scrapping of the refrigeration system, and the traditional cutting fluid is also corrosive to aluminum, which is harmful to product manufacturing, and the defoaming ability needs to be improved

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