Water-soluble lubricant for metal processing, metal processing method and metal processing apparatus suitable for use therein

摘要

The present invention provides a water-soluble lubricant for metal processing, which is excellent in processing performance and drying property, and has a very low environmental load, a metal processing method and a metal processing apparatus suitable for use in the same. (A) 1 g of the lubricant was weighed in a container having a bottom area of 50 cm 2 and held in a thermostatic bath at 100 ° C., and the time until 80% by mass of evaporation was within 10 minutes. It consists of 01 mass% or more and less than 5 mass%, (B) 0.05-20 mass% of nonionic surfactant, and water. The metal processing method essentially comprises a step of applying a water-soluble lubricant for metal processing to at least one of the front and back of a thin metal plate, a step of pressing and / or cutting the thin metal plate, Essentially from thin metal housing, drive means for pulling out thin metal plate, application means for applying water-soluble lubricant for metal processing to at least one of the front and back of thin metal plate, processing means for performing press working and / or cutting work Become.