Paying attention to environmental friendliness and greater safety will be the development trend of the automobile industry, which will inevitably lead to the development of cold-rolled automobile sheets in the direction of ultra-deep drawability, ultra-high strength, coating and speciality.
The emergence of interstitial-free steel (IF steel) has made the industrial production of cold-rolled automotive sheets with ultra-deep drawing performance a reality. Reducing the production cost of IF steel and further improving product grade are currently the focus of IF steel production and research.
With the development of the automobile industry, the quality standards of cold-rolled high-strength automotive sheets are getting higher and higher. While ensuring processing performance, product strength also needs to be greatly improved to ensure that the product's high strength and formability are well matched.
Coated steel plates are more adapted to the requirements of improving automobile life and corrosion resistance. As the coating performance is continuously optimized, the overall quality of coated steel plates is further improved, and the usage will increase rapidly.
The production process of cold-rolled automobile sheets is complex and difficult, and the production and quality conditions of each process restrict each other. In recent years, advanced cold-rolled automobile sheet manufacturers at home and abroad have gradually established, developed and improved the principle of consistent production, and unified the various processes involved in smelting, continuous casting, hot rolling, cold rolling, annealing and coating. Production planning and quality management provide advanced process technology and management support for the production of high-quality cold-rolled automotive sheets.
