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| Application of Chamfered Mould on Slab Continuous Casting Production in Lianyuan Iron and Steel Company |
| CAO Jian-xin1,TAO Hong-biao2,ZHANG Hui2,ZHOU Ming-wei1, ZHANG Liang-zhou1,PENG Ming-yao1 |
（1. Lianyuan Iron and Steel Group Ltd., Loudi 417000, Hunan, China
2. Central Iron and Steel Research Institute, Beijing 100081, China） |
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Abstract In order to eliminate continuous casting slab corner crack defects of micro-alloyed steels so that the slab can meet rolling need when it is unnecessary to offline cut the corner, a lot of industrial trials were made by using the chamfered mould technology. The problem that there were some longitudinal corner cracks and sticking scars were analyzed and solved. For this reason, the chamfered mould technology can be used for large-scale continuous production. Industrial applied trials results show that the chamfered mould technology can not only control slab corner transverse cracks but also reduce substantially the rate of side direct crack occurred on the surface of hot rolling sheet of super low carbon steel. Therefore, the chamfered mould technology can bring huge economic benefit for iron and steel company.
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Received: 04 January 2013
Published: 25 November 2013
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2013, Vol. 48 
