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| Effect of CC process on macro carbon segregation in Steel Bloom |
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Abstract Investigation shows that the main reason of macro carbon segregation in steel bloom is nonhomogeneous distribution of carbon during the solidification of bloom, and severity of nonhomogeneous distribution of carbon is proportion to the carbon content of steel. The standard deviation and range of carbon distribution in various steel grades were normalized the distribution of carbon segregation in 20CrMoH, then the data were analyzed in the same scale. In normal continuous casting, the following casting parameters can improve the carbon segregation of casting bloom, such as casting overheat at 15~25 ℃, the amount of secondary cooling water is 0.35L/kg, stirring torque of mold and final electromagnetic stirring are respectively 18 and 15cN•cm. The normalized standard deviation and range of carbon segregation decreased to below 0.015% and 0.025% after the best combination of parameters were used in production practice.
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Received: 16 October 2009
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| [2] |
ZOU Lei-lei, HUANG Jun-xiong, LI Quan-hui, ZHANG Jiang-shan, LIU Qing. Research progress on the crack and segregation prediction of continuous casting strand[J]. CONTINUOUS CASTING, 2022, 41(2): 2-9. |
| [3] |
DENG Xiao-xuan, LI Hai-bo, JI Chen-xi, CHEN Bin, ZHU Guo-sen. Three-dimensional distribution on macro inclusions in surface layer of IF steel slabs[J]. CONTINUOUS CASTING, 2022, 41(2): 35-40. |
| [4] |
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| [5] |
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| [6] |
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2010, Vol. 29 
