Summary of packaging steel strip production

Cold rolled steel sheet packing belt production: cold rolled sheet steel belt packaging has the advantage of product is very thin, size tolerance is very small, good surface quality and mechanical properties. Cold rolled steel sheet packing belt production of the main processes are: raw material plate volume of acid pickling, cold rolling, degreasing, annealing, flat and coating. The thickness of the product is 0. 25 - 3. 1700-5 mm, roll length At the end of the 2135 mm, frame for 25 - rolling speed 30-27 m/s, volume weight 45 tons. Skim the purpose is to remove surface oil pollution, in order to avoid the formation of floor during annealing spots. The purpose of annealing is to eliminate work hardening. During cold rolling, so repeatedly, until the required thickness. Packaging steel strip coating plate, which has two kinds of coating metal and nonmetal. The former including tin and galvanized, etc, the latter including enamel, etc.