王韬, 陈伟庆, 王宏斌, et al. Effect of Concasting Parameter and F-EMS on Center Carbon Segregation of 82B Steel Billet[J]. Special Steel, 2013, 34(1): 49-51.DOI:
The effect of final electromagnetic stirring (F-EMS) (160 A/4 Hz 〜280 A/8 Hz)
temperature of liquid in tundish (1 500 〜1 542 ℃)
casting speed (1.7 ~ 1. 9 m/min) and secondary cooling water ratio (0. 7 ~ 1. 1 L/kg) on center carbon segregation of 150 mm x 150 mm billet of 82B steel (/%: 0. 81C
0. 76Mn
0. 25Si
0. 2Cr) with mold electromagnetic stirring (M-EMS) 240 A/4 Hz has been tested and studied. Results show that in condition without using FEMS
with decreasing overheat extent of liquid in tundish and casting speed
and increasing secondary cooling water ratio
the center carbon segregation index of billet decreases ; and in condition with using F-EMS with optimized parameter 160 A/ 6 Hz the carbon segregation of billet of 82B steel is minimum