Microemulsion type water-soluble metal cutting fluid and preparation method thereof

Abstract

The invention provides a microemulsion type water-soluble metal cutting fluid and a preparation method thereof. The cutting fluid is prepared from the components in percentage by weight: 5 to 40 percent of base oil A, 3 to 10 percent of surface active agent B, 2 to 27 percent of stabilizer C, 0.1 to 3 percent of extreme pressure agent D, 0.1 to 5 percent of sterilizing agent E, 0.5 to 3 percent of metal antioxidant F, 1 to 3 percent of defoaming agent H, 0.5 to 2 percent of hard water resistance agent G, 1 to 5 percent of sinking agent K, and the balance of distilled water, wherein the stabilizer is a mixture of primary amine and tertiary amine, and can be reacted with the base oil to generate alkanolamine carboxylate, and the mass ratio of the base oil and the stabilizer is 3 to (1 to 2). The cutting fluid has the advantages of superior lubricating property, good corrosion resistance, high stability, long service cycle and the like.

Description

technical field [0001] The invention relates to the field of metal product processing, in particular to a microemulsified water-soluble metal cutting fluid and a preparation method thereof. Background technique [0002] Cutting fluid refers to the lubricant used in various processing processes such as metal and its alloy cutting, stamping, rolling and drawing. The cutting fluid should have the ability to prevent metal parts from rusting, take away the heat generated during the Effectively remove chips and other particles on the surface of parts and tools. The earliest cutting fluid used in the metal processing field was pure water, and then water or oil-based cutting fluids were gradually developed. [0003] According to the composition and medium of the cutting fluid, the cutting fluid can be divided into two types: oil-based and water-based: (1) Oil-based cutting fluid is made of oil-based compounds (mineral oil, vegetable oil), oily anti-rust agent and other Oily additiv...

AI Technical Summary

Problems solved by technology

The oil content of the emulsion is high (70%-85%), which is composed of water-insoluble mineral oil, fatty oil and surfactant, and has good lubricity and machinability; semi-synthetic fluid (10%-50% oil content), Composed of a small amount of mineral oil, an appropriate amount of water and appropriate additives, it has a wide range of applications. Its service life, corrosion resistance, and extreme pressure performance all exceed those of emulsions; synthetic fluids contain a large amount of water and various water-soluble functional additives, but not Contains oil, and becomes transparent after diluted with water. It has good cooling performance and poor lubricity, which is easy to cause corrosion of workpieces.

[0004] Although semi-synthetic fluids have better characteristics than emulsions and synthetic fluids, there are still certainty that emulsions and synthetic fluids exist. For example, semi-synthetic water-based cutting fluids contain mineral oil, fatty acid soaps, amines, sulfonates, and water. components, so susceptible to microbial attack, leading to spoilage and shortened service life

Especially in the hot summer in the south, the use cycle is only one week, or even only two or three days before it stinks, which brings a lot of trouble to the operators

This not only increases the working hours and production cost of changing the machining fluid, but also pollutes the working environment. For example, the semi-synthetic water-based cutting fluid contains a lot of water, which leads to the improvement of the lubricity, machinability and corrosion resistance of the cutting fluid.

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