Environmental-friendly antirust cutting fluid and preparation method thereof

Abstract

The invention discloses antirust cutting fluid and a preparation method thereof. The antirust cutting fluid comprises the ingredients in percentage by mass: 0.5-2.5% of boric acid, 4.9-30.2% of triethanolamine, 1-5% of oleic acid, 0.5-2% of dodecyl dimethyl betaine, 0.1-2% of rosin, 0.1-0.5% of defoamer, 1-5% of lubricant and the balance of water. The preparation method comprises the steps of firstly enabling boric acid, oleic acid and rosin, which are in the formula ratio, to respectively react with triethanolamine, then, mixing three solutions which are obtained through reaction, then, adding a proper amount of dodecyl dimethyl betaine, a proper amount of defoamer, a proper amount of lubricant and the balance of water, heating and uniformly stirring. The antirust cutting fluid disclosed by the invention has good rust resistance and lubricating property to first-level cast iron; both original cutting fluid and diluted liquid thereof are stable in performance and low in cost and are harmless to environment and human.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and relates to an environmentally friendly antirust cutting fluid and a preparation method thereof. Background technique [0002] Cutting fluid is an industrial liquid used for cooling and lubricating cutting tools and workpieces during metal cutting, cutting and grinding. It should have good cooling performance, lubricating performance, antirust performance, degreasing and cleaning function, and anti-corrosion function. . [0003] In the machining process, people have long used an emulsified cutting fluid formulated with emulsified ointment, sodium carbonate, and sodium nitrite. But this cutting fluid also has some deficiencies. First, the service life is short, especially in summer when the temperature is high, and the cutting fluid is easy to deteriorate, which makes the workpieces using the cutting fluid rusted; secondly, the sodium nitrite contained in the cutting fluid is harmful to the human...

AI Technical Summary

Problems solved by technology

But this cutting fluid also has some deficiencies. First, the service life is short, especially in summer when the temperature is high, and the cutting fluid is easy to deteriorate, which makes the workpieces using the cutting fluid rusted; secondly, the sodium nitrite contained in the cutting fluid is harmful to the human body. , and when sodium nitrite is mixed with sodium carbonate, it is easy to produce hard crystals, which will not only adversely affect the quality of the workpiece, but also bring difficulties to equipment maintenance and maintenance; again, from the perspective of environmental protection, this kind of The emulsified ointment in the cutting fluid is made based on engine oil, which has a high oil content, does not meet the environmental protection emission standards, and consumes a lot of energy and high production costs