A kind of cutting fluid for precise manufacturing of automobile aluminum wheel hub and preparation method thereof

Abstract

The invention discloses a cutting fluid for precision manufacturing of automobile aluminum wheel hubs and a preparation method thereof. The cutting fluid includes the following components by mass percentage: antirust agent A 5%-15%, antirust agent B 3%-8%, lubricant 5%-15%, special functional agent 2%-5%, balancer 2 %-5%, microbial control agent 2%-5%, surfactant 5%-15%, mineral oil 30%-50% and the balance of deionized water, wherein, the antirust agent A includes diglycolamine , at least one of monoethanolamine and 2-amino-2-methyl-1-propanol; the rust inhibitor B includes boric acid, decaneddioic acid, undecanedioic acid, tricarboxylic acid, At least one of sodium benzoate and polycarboxylic acid ester; the special functional agent is fatty acid polyol ester. The cutting fluid of the invention has good antirust performance, lubricity, defoaming performance, biological stability and safety in use, and can meet the requirements of precise manufacturing of aluminum wheel hubs of automobiles and even specular high-gloss processing.

Description

technical field [0001] The invention relates to the field of metal cutting lubricating materials for precision manufacturing of automobile aluminum wheels, in particular to a cutting fluid for precision manufacturing of automobile aluminum wheels and a preparation method thereof. Background technique [0002] Cutting fluid is a kind of industrial liquid used in cooling and lubricating cutting tools and workpieces in the process of metal cutting, chipping and grinding, which can meet the higher requirements of workpieces. Demanding precision manufacturing, even specular high-gloss processing requirements. [0003] China is the manufacturing center of the global automobile wheel hub. The high-quality and high-quality aluminum wheel hub cutting fluid is inseparable from the specular high-gloss precision manufacturing of wheel hub products. At present, most of the emulsified oily emulsions used in the processing of automotive aluminum wheels on the market can meet the cooling a...

AI Technical Summary

Problems solved by technology

At present, most of the emulsified oily emulsions used in the processing of automotive aluminum wheels on the market can meet the cooling and lubricating effects required for workpiece processing, but contain a large amount of mineral oil that is easy to nourish bacteria, and the cutting site has a lot of oily fumes. It is difficult to clean after completion, the working fluid is easy to get dirty, the replacement cycle is short, and the overall cost is high. The replaced waste liquid contains a large amount of petroleum organic matter, various electrolytes, and surfactants, and faces environmental protection problems of discharge.

A small number of enterprises use fully synthetic cutting fluid with water as the dispersion medium. This type of cutting fluid uses water as the main component and contains lubricants, anti-rust agents, etc., and has certain lubricating and anti-rust properties, but the existing technology This kind of cutting fluid with water as the dispersion medium has poor lubricity, poor anti-rust performance, low qualified rate of finished products, large tool wear, short anti-corrosion time of aluminum, poor defoaming performance, and is in the technical bottleneck period of qualified rate of precision machining products Some products also add sodium nitrite which is harmful to the human body to make up for the rust resistance defects

For example, some products add (C10-C13) short-chain chlorinated paraffins and sodium nitrite to increase lubricity and rust resistance. Chlorinated paraffins have better lubricity, but these substances are unstable and contain a large amount of Free chlorine will corrode machine tool taps, and it is easy to decompose during processing. The hydrogen chloride gas released will have a certain impact on the liver and kidneys of the human body. Sodium nitrite has good rust resistance, but it is actually a potential carcinogen

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