Aerospace precision industrial cleaning agent

The invention discloses an aerospace precision industrial cleaning agent which comprises, in weight percent, 85-95% of dichloromethane, 0-15% of ethyl alcohol and 0-15% of ethyl acetate. The cleaningagent is high in dirt cleaning speed, thorough in scale dissolution, low in cleaning cost, low in toxicity for organisms and environments, mild in cleaning condition, independent of reinforcement conditions, nonflammable, non-explosive, free from phosphorus and environmentally friendly, the components are inexpensive and easy to obtain, excessive resource consumption is omitted, COD (chemical oxygen demand) values are decreased, insoluble substances do not remain on the surface of a cleaning object in the cleaning process, new dirt is avoided, a new covering layer harmful to subsequent handling is not formed, product quality cannot be affected, and foam and undesirable odor affecting the cleaning process and spot sanitation are avoided. 本发明公开了种航天精密工业清洗剂，包括按质量百分比计的以下组分：二氯甲烷85-95％；乙醇0-15％；以及乙酸乙酯0-15％。本发明所述的清洗污垢速度快、溶