Synthesized metal cutting fluid taking poly-alpha olefin as base oil and preparation method thereof

Abstract

The invention discloses a synthesized metal cutting fluid taking poly-alpha olefin as base oil, and the synthesized metal cutting fluid comprises the poly-alpha olefin, a nonionic surface-active agent, an anionic surface-active agent, an antirust, a cosolvent, an extreme pressure agent, a defoaming agent, a bactericide and water. The preparation method comprises the following steps of: sequentially adding the defoaming agent, the extreme pressure agent and the bactericide to the poly-alpha olefin base oil, and uniformly stirring to form an oil system; adding the antirust to the water, uniformly stirring to form a water system; and uniformly mixing the water system and the oil system, and then stirring and dripping the nonionic surface-active agent, the anionic surface-active agent and the cosolvent at the same time to finally obtain the synthesized metal cutting fluid taking the poly-alpha olefin as the base oil. The synthesized metal cutting fluid has the advantages of excellent viscosity-temperature property, lubricity, biodegradability, low toxicity and low harmfulness on human bodies and the environment and usage period longer than the usage period of the traditional cutting fluid and is suitable for the cutting machining of high-accuracy and high-demand metal workpieces.

Description

technical field [0001] The invention relates to a synthetic metal cutting fluid with polyalphaolefin as base oil and a preparation method thereof. Background technique [0002] Synthetic metal cutting fluid is a kind of metal processing fluid. During the cutting process, it forms a layer of boundary film between the workpiece and the tool to reduce the friction between the workpiece and the tool during the cutting process and reduce the wear of the tool. And energy loss, to ensure the accuracy and smoothness of processing, so as to meet the requirements of the workpiece. [0003] The current synthetic metal cutting fluids are based on mineral oil and vegetable oil. [0004] The synthetic metal cutting fluid based on mineral oil is refined from crude oil. Although the technology is mature and the price is cheap, the mineral oil is more harmful to the environment and has poor biodegradability. Small molecular hydrocarbons in mineral oil Mineral oil remains in the soil for a ...

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to solve the above-mentioned traditional mineral oil-based metal cutting fluids, due to the poor biodegradability of mineral oil, long-term retention in the soil, polluting groundwater, poisoning aquatic organisms, etc. Synthetic metal cutting fluids based on base oils have a great impact on environmental stability, while synthetic metal cutting fluids based on vegetable oils are not stable at low and high temperatures due to the poor stability of vegetable oils, and are prone to breed bacteria, and the synthetic metal cutting fluids have a short service life A series of problems such as environmental impact is also relatively large, and a synthetic metal cutting fluid based on polyalphaolefin instead of traditional mineral oil or vegetable oil is provided, and the synthetic metal cutting fluid based on polyalphaolefin is biodegradable Good performance, non-toxic and harmless to the environment and human health, and the service life is longer than traditional cutting fluids