Analysis of coiling in tandem cold rolling process of fine blanked steel
CHEN Jin-shan1,LI Chang-sheng1,FU Bo2
1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819,Liaoning, China 2. Baosteel Stainless Steel Co., Ltd., Shanghai 200431, China
Abstract:The realization of coiling of heavy fine blanked strip steels is the key point for implementing tandem cold rolling technology of fine blanked steels successfully. In order to establish the model of deformation resistance for cold rolled fine blanked steels, cold rolling of fine blanked strip steels was studied in the laboratory through cold four-high reversible mill. Meanwhile, stress-strain curves of fine blanked steels were gained with MMS-200 thermo-mechanical simulator. Contraposing the carrousel coiler configured for 1750mm tandem cold rolling mills, mechanism analysis of the coiling process and mechanics analysis of the state of coiling for fine blanked strip steels were conducted in-depth to provide theoretical support for analysis and calculation on coiling capacity of limit thickness in tandem cold rolling of fine blanked steels. On this basis, the limited thickness of coiler in tandem cold rolling of fine blanked steels with multiple sizes was computed under the condition of different friction, and then the corresponding thickness window of safety coiling was also presented. The present work is significant to the research on production process of fine blanked steels in tandem cold rolling, which can be put into practical production.
陈金山,李长生,付博. 精冲带钢冷连轧生产过程的卷取分析[J]. 中国冶金, 2015, 25(05): 1-5.
CHEN Jin-shan,LI Chang-sheng,FU Bo. Analysis of coiling in tandem cold rolling process of fine blanked steel. China Metallurgy, 2015, 25(05): 1-5.