For the high carbon SWRH82B steel strand drawing wire tip break and net carbon over standard defect

we studied the mechanism of carbon segregation in the center of 180 mm x 180 mm high carbon steel SWRH82B billet. The superheat extent of molten steel

casting speed

finished electromagnetic stirring and two-stage cooling water strength were analyzed. The results show that the relationship between carbon segregation and superheat of steel SWRH82B in 180 mm X 180 mm section is y = 1.0929 - 0.008x + 3. 1069 x 10

-4

x

2

superheat

and the optimum process parameter for controlling carbon segregation is superheat extent 20 ~30 °C

the pulling speed is 1.4 m/min

the terminal electromagnetic stirring current is 400 A frequency 10 Hz and the weak cooling ratio 0.4 L/kg of second cooling wate is adopted.