| Quantitative study on solid slag film’s crystallinity of mould fluxes by using DSC method |
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| 作者姓名： | WEN Guanghu WANG Zhe ZHANG Quan HU Quan LU Yifan and YANG Changlin |
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| 作者单位： | College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China,College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China,College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China,College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China,College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China and College of Materials Science and Engineering, Chongqing University, Chongqing 400030, P.R.China |
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| 基金项目： | Supported by National Natural Science Foundation of China(51274260); and Undergraduates Scientific Research Training Plan of Chongqing University. |
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| 摘 要： | The method to determine the crystallinity of solid slag film is established by analyzing the DSC curve of solid slag film and corresponding quenched slag. The accuracy of the method is investigated by measurements of prepared samples whose crystallinity is given. In addition, the solid slag films of mold slags used to cast medium carbon steel and low carbon steel are obtained by heat flux simulator in laboratory, and the crystallinity of the two kinds of slag film are also measured by DSC method. Experimental results indicates that the crystallinity of solid slag film can be determined by comparing the crystallization enthalpy of solid slag film and corresponding quenched slag during heating process, and the relative error is within 5.03%. For medium carbon steel, the crystalline fraction of solid slag film is 88.6%, while the crystalline fraction of solid slag film corresponding to low carbon steel is 55.0%. The results are consistent with actual structure of solid slag films.
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| 关 键 词： | continuous casting mould fluxes solid slag film crystallization fraction quantification |
| 收稿时间： | 2014/12/10 0:00:00 |
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