| 摘要 |
PURPOSE:To increase lubricity at the rolling and to reduce carbon stains after annealing by coating a specific coating agent on a cold-rolled steel plate by using rolling oil contg. no rust preventives prior to annealing said rolled steel plate. CONSTITUTION:Rolling oil contg. no rust preventives is coated on the surfaces of a steel plate and rolls and the steel plate is cold-rolled. Next, >=1 kinds of alcohols of 12-20 carbon numbers, monoesters of 18-28 carbon numbers, hydrocarbon polymers of 400-10,000mol.wts., and mineral oils of 8-120cst viscosisties (100 deg.F) are coated on the surfaces of this rolled steel plate. Thence, the steel plate coated with this coating agent is annealed. |
