|
|
|
| Intermediate Crack Analysis and Control Practice of FTSC Thin-Slab |
| HAN Li-hai,ZHANG De-hui,GUAN Chun-li,XIN Li-hui |
| Steelmaking and Rolling Plant of Tonghua Iron and Steel Co., Ltd.,Tonghua 134003, Jilin,China |
|
|
|
|
Abstract Abstract:The causes of intermediate crack generated in the Tonggang FTSC thin-slab of SS400 whose cross-section is 1250×72 were analyzed. The defects ratio of SS400 was effectively controlled by optimization of reduction end point of the segment, the rolling reduction of the segment entry and export, the secondary cooling water; changing the segments with rollers which do not rotate on time and removing scale between segment rollers to decrease torsion of pinch rolls.
|
|
Received: 31 March 2012
Published: 26 September 2012
|
|
|
|
| [1] |
YUAN Peng-fei, JIANG Zhao-hui, ZHAO Hai-ming. Cause analysis and control of intermediate crack in Q345B continuous casting slab[J]. CONTINUOUS CASTING, 2021, 40(4): 38-42. |
| [2] |
LAN Peng,HAN Gengwei,LI Liang,WANG Pu,. Formation and control of midway crack in LDCC #br# Q235B steel slab with high casting speed[J]. Iron and Steel, 2019, 54(8): 144-153. |
| [3] |
CHEN Liang，，SONG Bo，CHEN Tian-ming，CHEN Xiong，YANG Wen-zhong. Control countermeasures of center porosity and shrinkage in 45 steel continuous casting bloom[J]. Iron and Steel, 2018, 53(8): 49-54. |
| [4] |
LI Yu-jun，LI Liang，LAN Peng，ZHANG Jia-quan，CHEN Lie，KOU Yu-shan. Reduction amount model for dynamic soft reduction in bloom continuous casting of special steels[J]. , 2018, 37(4): 27-32. |
| [5] |
LIN Peng，ZHANG Hong-cai，MA Jian-chao，ZHAI Wan-li，YIN Chuan-lei. Study on the typical quality defect control process of 65Mn billet[J]. , 2018, 37(4): 42-45. |
| [6] |
YANG Jie，YAO Hai-ming，LI Meng-ying，HAO Chang-xin，FU Jian-jun. Key quality control technologies of FTSC thin slab in tangsteel[J]. , 2018, 37(4): 56-63. |
|
|
|
|
2012, Vol. 31 
