LUBRICANT FOR FORMING ALUMINUM AND ALUMINUM ALLOY PLATES, AND ALUMINUM AND ALUMINUM ALLOY PLATES FOR FORMING

摘要

A lubricant for forming aluminum and aluminum alloy plates, which is easy to remove after the formation and assembly of the plates, enables the plates to be bonded or welded as coated with the lubricant, and provides the strength of bonding or welding equal to that observed when the lubricant is absent. The lubricant comprises mainly polyalkylene oxide or a derivative thereof and a salt of a higher fatty acid and contains preferably water. The content of the oxide or derivative is 50-2 wt.% and the ratio of the salt to the oxide ranges from 1/12 to 1/4. The lubricant is suitable for the formation of an aluminum plate or an aluminum alloy plate, when it is applied to the surface of the plate in the form of solid coating in a coating weight of 0.2-2.0g/m2.