LUBRICATING OIL COMPOSITION FOR USE IN WORKING ALUMINUM TUBE

摘要

A lubricating oil composition for use in working an aluminum tube, characterized in that it comprises at least one selected from polybutene and a polyalkylene glycol, as a base oil, and at least one oily agent selected from among a partially etherificated compound from a multivalent alcohol, an ester, an alcohol and a fatty acid in an amount of 0.5 to 40 mass % relative to the total amount of the composition. The above lubricating oil composition for use in working an aluminum tube exhibits excellent lubricity in the tube drawing, form rolling or the like of an aluminum tube, and allows the satisfactory reduction of the amount of an oil remaining in a tube in an annealing step.