Continuous Casting Process for Controlling Banded Microstructure of SAE8620HL
IU Cheng-bao1,DOU Sheng-peng2,GE Wen-ying2,ZHAI Zheng-long2
1. Technical R and D Center, Laiwu Branch of Shandong Iron and Steel Co., Ltd., Laiwu 271105, Shandong, China 2. Special Steel Division, Laiwu Branch of Shandong Iron and Steel Group Co., Ltd., Laiwu 271005, Shandong, China
Abstract：Banded structures of gear steel SAE8620H of 100 mm or more in diameter were analyzed. The results showed that improving the superheat of molten steel, accelerating the draw rate of continuous casting and hot transportation and hot charging, increased the formation probability of banded structures more greatly or equal to 2.5 grade, and the cooperation of the disadvantage factor significantly promoted the formation of banding structures. Based on the analyses, the controlling method for banding structures was given.
刘成宝，窦圣朋，戈文英，翟正龙. 控制SAE8620H带状组织的连铸工艺[J]. 中国钢铁期刊网, 2014, 33(1): 11-14.
IU Cheng-bao,DOU Sheng-peng,GE Wen-ying,ZHAI Zheng-long. Continuous Casting Process for Controlling Banded Microstructure of SAE8620HL. Chinese Journal of Iron and Steel, 2014, 33(1): 11-14.
2014, Vol. 33 
