Practice of reducing breakout for small billet continuous casting
Aiming at the high chance of breakout for the small billet continuous casting in Fushun New Steel Co., Ltd., the causes of high breakout rate was analyzed from the molten steel casting condition, process operation and environmental factors.Through improving mold cooling system, reducing the superheat degree of molten steel in tundish, strictly standardizing mould powder operation and shooting pin to determine the thickness of billet shell, the breakout rate of the small billet continuous casting was significantly dropped and the breakout rate was reduced to 0.03 %.
billet continuous castingcracking breakoutsticking breakoutmould powdercooling system