Control of Transverse Corner Cracks on Continuous Casting Slab for HSLA of Panzhihua Steel

CHEN Yong; YANG Subo; ZHU Miaoyong

Volume 29 Issue 3

Aug. 2008

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CHEN Yong, YANG Subo, ZHU Miaoyong. Control of Transverse Corner Cracks on Continuous Casting Slab for HSLA of Panzhihua Steel[J]. IRON STEEL VANADIUM TITANIUM, 2008, 29(3): 55-62.

Citation:

CHEN Yong, YANG Subo, ZHU Miaoyong. Control of Transverse Corner Cracks on Continuous Casting Slab for HSLA of Panzhihua Steel[J]. IRON STEEL VANADIUM TITANIUM, 2008, 29(3): 55-62.

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Control of Transverse Corner Cracks on Continuous Casting Slab for HSLA of Panzhihua Steel

1. School of materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China;
2. Panzhihua Iron and Steel Research Institute, Panzhihua 617000, Sichuan, China;
3. Vanadium Recovery&Steelmaking Plant, Panzhihua New Steel&Vanadium Co., Ltd., Panzhihua 617062, Sichuan, China

Received Date: 2008-01-30
Available Online: 2023-12-05

Abstract

Abstract

Factors influencing transverse corner cracks in continuous casting slab,such as level fluctuation of molten steel in mold,mold taper,primary cooling,casting powder,secondary cooling,process parameters of CC,etc.,have been analyzed.Based on this,some effective countermeasures have been proposed,such as stabilizing steel level,optimizing the mold taper,weakening the primary cooling and the secondary cooling,reforming the casting powder,and so on.With all these countermeasures,transverse corner cracks on continuous casting slab have been significantly reduced,and the edge cracks on hot rolled sheet have been eliminated due to the transverse corner cracks.
- continuous casting,
- slab,
- transverse corner cracks,
- HSLA,
- mold level control,
- cooling process

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