Study on Cleanliness of gas cylinder steel during Vacuum Degassing
The Cleanliness of gas cylinder steel (30CrMo) was studied during vacuum degassing by interrupting vacuum after the start of operation. Steel samples were collected to analyze with respect to steel composition, total oxygen content, number and account of inclusions in the molten steel. The results showed the content of total oxygen increases firstly and decreases latter, and the total oxygen content seems to reach a minimum value after around 12 min of vacuum degassing. The vacuum degassing effectively reduces the number of inclusions in steel, but increases the amount of macro-inclusions.
Cleanliness inclusions vacuum degassing gas cylinder steel
YANG Shu-feng LI Jing-she LIN Xiao-chuan JIANG Gui-lian
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Be Steelmaking Plant, Tianjin Pipe Company Ltd., Tianjin 300301, China
国际会议
沈阳
英文
490-493
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）