406-paper-节约型钢铁材料制造过程 revised.docVIP

Cost-saving steels and their manufacturing processes WANG Guo-dong, LIU Xiang-hua, WU Di (The State Key Laboratory of Rolling Automation (Northeastern University), Shenyang, 110004, China) Abstract: Resources-conserving manufacturing is becoming an important tendency in materials production. Cost-saving steels and their manufacturing processes were explored, during which the viewpoint in energy saving and sources-saving to realize cost-saving production was discussed. There were about four aspects in detail: design and production technology for cost-saving steels, cost-saving production processes, cost-saving production lifecycle and environment-friendly production. Keywords: Cost-saving steels, Manufacturing process, Environment-friendly production China has issued the medium-term and long-term development planning compendium, which is a guiding document for the development of science and technology. It has been pointed out that manufacturing process for new generation steels needs to be developed, and three major functions need to be realized during the production, including raw iron and steel supplying, energy and disposing waste transferring. To realize cost-saving manufacturing processes of new generation steels will promote continuous socio-economic development of our country. Designing and manufacturing process for cost-saving steels Iron and steel materials are widely used for two reasons. On the one hand, they are inexpensive and in large scale production, on the other hand, they may possess different strengths in a large range by applying suitable controlled rolling and controlled cooling, or the so-called TMCP. The chief goal of controlled rolling is to control the state of the austenite, while controlled cooling is to control the phase transformation of deformed austenite and to refine ferrite grain, or improve the steel performance by controlling the phase proportion to form complex phase structure. Intensively utilizing the characteristics of p