| 摘要 |
PROBLEM TO BE SOLVED: To provide a solution type cold rolling coolant which exhibits the same extent of lubricity as an emulsion rolling oil, has stabilized coolant properties, and excels in detergent performance.SOLUTION: The coolant comprises 2.0-30.0 mass% polyalkylene glycol having an average molecular weight of 500-5,000 and a total molecular weight of ethylene oxide in the molecule of 5.0-15.0 mass% of the entire molecular weight. |
