The application belongs to the technical field of
metal processing fluid, and discloses a low-carbon
biodegradable metal processing fluid, which comprises the following components in percentage by
mass: 4-6% of
isopropyl alcohol amine, 1-3% of
nano silicon corrosion inhibitor, 2-5% of ternary
carboxylic acid rust inhibitor, 0.5-2.5% of
benzotriazole, 5-10% of 182 self-emulsifying ester, 4-6% of
castor oil acid, 40-60% of DOTP, 4-8% of gelberol, 2-4% of
ether carboxylic acid complexing agent, 2-5% of cashew
phenol polyoxyethylene ether 5EO, 4-8% of cashew
phenol polyoxyethylene ether 2EO, 0.4-0.6% of
potassium hydroxide, and the balance of water. The low-carbon
biodegradable metal processing fluid does not contain harmful substances, has excellent
environmental protection performance, has good
lubricity, and can be applied to the processing of metals such as
copper, aluminum and its alloys,
magnesium and its alloys, and has a good application prospect.