| 摘要 |
Title: HOT MELT METAL WORKING LUBRICANTS Inventor: Richard William Jahnke Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30-100.degree.C. The composition comprises at least one neutral ester, and preferably a mixture of esters, prepared from polyalkylene glycols and saturated aliphatic alcohols having at least about 10 carbon atoms, and C12-25 aliphatic monocarboxylic acids and C4-20 aliphatic polycarboxylic acids. The preferred ester mixtures are prepared from polyethylene glycols, C14 -20 predominantly straight chain alkanols, stearic acid and adipic, azelaic or sebacic acid. Optional ingredients include phosphorus acid salts and antioxidants. The composition may be applied in liquid form and solidifies on cooling to normal ambient and storage temperatures. |
