Yu Jie, Tang Ping, Yang Hao, Wen Guanghua, Hu Daofeng, Zhang Yue, Ma Jun, Ma Jun. Research on Quality Control of 45# Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(3): 84-88.
Citation:
Yu Jie, Tang Ping, Yang Hao, Wen Guanghua, Hu Daofeng, Zhang Yue, Ma Jun, Ma Jun. Research on Quality Control of 45# Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(3): 84-88.
Yu Jie, Tang Ping, Yang Hao, Wen Guanghua, Hu Daofeng, Zhang Yue, Ma Jun, Ma Jun. Research on Quality Control of 45# Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(3): 84-88.
Citation:
Yu Jie, Tang Ping, Yang Hao, Wen Guanghua, Hu Daofeng, Zhang Yue, Ma Jun, Ma Jun. Research on Quality Control of 45# Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(3): 84-88.
According to the problem of internal cracks occurred on continuous casting billet at Nanjing Iron & Steel Co.,Ltd.,the species,quantity and size of inclusions on the different position of billet cross section were statistically analyzed.The results showed that: main causes of internal cracks are large sulfide inclusions and large temperature recovery.Through the secondary cooling numerical simulation and the production practice,it proved that the optimization of secondary cooling scheme can be used to control solidification performance of inclusions of billet,reduce segregation and quantity of sulfide in billet.So the internal cracks of billet can be controlled efficiently.
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