Analysis on Narrow Side Bulging of Slab and Improvement Measures

Wang Wenxue; Liu Cailing; Yang Chaowu; Zeng Jing; He Yuming; Li Deqing; Wang Haibin

Volume 33 Issue 2

Apr. 2012

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2012 > 33(2): 93-95

Diao Risheng, Wang Jing, Li Hongfang. DESULPHURIZATION AND REDUCTION PROCESS BETWEEN TiO2-CONTAINING SLAG AND MOLTEN PIG IRON[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(1): 10-15.

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Wang Wenxue, Liu Cailing, Yang Chaowu, Zeng Jing, He Yuming, Li Deqing, Wang Haibin. Analysis on Narrow Side Bulging of Slab and Improvement Measures[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(2): 93-95.

Diao Risheng, Wang Jing, Li Hongfang. DESULPHURIZATION AND REDUCTION PROCESS BETWEEN TiO2-CONTAINING SLAG AND MOLTEN PIG IRON[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(1): 10-15.

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Analysis on Narrow Side Bulging of Slab and Improvement Measures

1. China National Heavy Machinery Research Institute, Xi'an 710032, Shanxi, China;
2. Chongqing Iron and Steel Co., Chongqing 400044, China;
3. Dalian Huarui Heavy Industrial Special Spare Co., Ltd., Dalian 116013, Liaoning, China

Received Date: 2011-07-27

Abstract

Abstract

Bulging of 7~8 mm appeared at the narrow side during casting 300 mm thick 16Mn slabs with 3^# caster of Chongqing Iron and steel Company.Problems during casting were identified,such as weak cooling intensity of mold especially at narrow side,too small taper at the narrow side and taper change of narrow side foot roller.After optimizing the structure of narrow side foot roller,taper of mold,alignment of copper plate and narrow side foot roller and secondary cooling of narrow side foot roller,the mold was brought to normal operation.Operating practice indicated that the greatest taper change of the improved mold was merely 0.5 mm and bulging at narrow side smaller than 2 mm.
- slab continuous caster,
- narrow side bulging,
- mold,
- narrow side foot roller,
- cooling intensity

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