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| Experiment on solidification and composition segregation of solidified mold flux film for peritectic steel continuous casting |
| LONG Xiao，HE Sheng-ping，WANG Qian |
| （College of Materials Science and Engineering，Chongqing University，Chongqing 400044，China） |
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Abstract The structure and property of mold flux films are critical factors for enhancing the quality of casting products and maintaining a stable running of casting. An improved water-cooled copper probe was adopted to obtain solid slag films with different probe immersion times. Optical microscopes and SEM were used to inspect the internal structure of films，SEM-EDX was adopted to measure the composition segregation within the film for deducing the composition change of liquid slag at solidification front. The result reveals that the major crystal forms in solid films are cuspidine and carnegieite，the precipitation of cuspidine changes the composition of liquid slag at the solidification front and promotes the precipitation of carnegieite，which leads to the rapid growing of solid slag film.
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Received: 07 November 2016
Published: 04 May 2017
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2017, Vol. 52 
