Brief Introduction of Packaging Steel Strip Production Process

Brief Introduction of Packaging Steel Strip Production Process
Traditional high-strength packaging steel strip production processes generally have two processes. One is the use of lead bath austempering and bainite strengthening treatment, and the other is the use of cold rolling strengthening and annealing processes. The former is due to the environmental impact of lead. Pollution, the country began to restrict the use, the latter requires high quality of raw materials and the quality is not easy to stabilize, development is restricted.
Production process route of packaging steel strip
The high-strength packaging steel strip production line adopts induction heating quenching and tempering heat treatment process, and the process route is
Continuous casting billet->Hot rolled steel strip->Cold rolled steel strip->Slitting->Unwinding->Welding->Entrance looper->Trimming treatment->High frequency heating->Water cooling quenching-> Tempering induction heating -> heat preservation treatment -> wax coating -> export looper -> steel strip coiling.
Two steel belts in the production line are paralleled, quenching, tempering, and bluing are performed continuously, which not only improves production efficiency, but also appropriately slows down the line speed, which is convenient for workers to operate. If the high-frequency heating water-cooled quenching equipment is disabled, the production line can be used The production of annealed bluing packaging steel strips has dual purposes on the first line, expanding the scope of equipment use and enhancing the ability of production enterprises to adapt to the market.