Cart Summary
0 item(s) ($0.00)
Product Search
All Products
AIST Transactions
Books
Conference Proceedings
Industry Data
Iron & Steel Technology
About the AIST Resource Center
Product Details:

Effect of Casting Speed on the Inclusion Distribution in a LCAK Steel Rolled Plate Produced by the MCCR Process

The multimode continuous casting and rolling (MCCR) process at Shougang Jingtang Steel is a newly designed multimode thin-slab continuous casting and rolling line which can continuously produce coils without cutting before the coiling machine. Under high-casting-speed conditions, the quality of rolled plates is more sensitive to changes in casting speed. To guarantee a balance between the high steel throughput and the high steel quality, a reasonable high casting speed is required. In the current study, the effect of casting speed on the distribution of inclusions in a low-carbon aluminum-killed steel rolled plate produced by the MCCR process was investigated. Inclusions in the rolled plate were of a Al2O3-CaO-MgO-CaS system. There was only a slight difference in the inclusion composition along the width of rolled plates, with an approximately average composition of 70 wt. % Al2O3, 20 wt. % CaO, and <10 wt. % MgO and CaS. As the casting speed increased from 4.7 to 5.2 m/minute, the average CaO content in inclusions decreased firstly at casting speeds lower than 4.9 m/ minute and then slightly increased at casting speed higher than 5.0 m/minute. The CaS content presented an opposite changing trend. Meanwhile, the distribution patterns of the number density and area fraction of >2 µm inclusions along the width of rolled plates roughly changed from the “?” shape to the “M” shape. By comparison, there was the smallest number density and area fraction of >2 µm inclusions at 4.7 m/minute, while the number density and area fraction of >2 µm inclusions was the highest at 5.2 m/minute. However, the uniformity of the inclusion distribution along the plate width was the smallest at 4.7 m/minute and the highest at 5.0 m/minute.
Product:
2024/10 AIST Iron & Steel Technology October
PR-PM1024-4
Tianxiang Yuan, Wen Yang, Lifeng Zhang, Jingang Liu
October 01, 2024
PDF
$25.00
$35.00
$35.00
Available for Immediate Download