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连铸保护渣的结晶过程 被引量:6

Crystallization Process of Casting Mold Fluxes
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摘要 连铸保护渣在结晶器内的结晶行为无法直接观测。为了模拟保护渣在结品器内的结晶行为,采用热丝法研究保护渣在高温下等温和连续冷却下结晶性能,直接观察保护渣析晶的全过程,发现温度影响析出晶体的形貌和结晶率。绘制保护渣TTT曲线和CCT曲线,表征保护渣析晶行为与时间、温度的关系。在冷却速率5~25℃/min范围内,DSC法测定保护渣结晶温度下降110℃;在冷却速率6~30℃/min范围内,热丝法测定保护渣结晶温度下降86℃。 The crystallization process was not observed directly in the mold. The crystallization properties of mold fluxes were studied and the crystallization process can be observed directly using the single hot thermocouple technique in isothermal and continuous cooling process at high temperature in order to simulate the crystallization behavior of mold fluxes. It can be found that temperature is one important factor to determine crystalline phase and crystallization rate. Time temperature transformation (TTT) diagram and continuous cooling transformation (CCT) diagram were determined to show the relationship among the behavior of crystallization, temperature and time. The crystallization temperature dropped 110 ℃ at the cooling rate ranging from 5-25 ℃/min using differential scanning calorimetry (DSC) and dropped 86 ℃ at the cooling rate ranging from 6-30 ℃/min using the single hot thermocouple technique.
出处 《钢铁研究学报》 CAS CSCD 北大核心 2007年第12期26-30,共5页 Journal of Iron and Steel Research
基金 国家自然科学基金资助项目(50474024) 重庆市自然科学基金资助项目(2006BB4200)
关键词 保护渣 结晶 热丝法 mold flux crystallization single hot thermocouple
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参考文献8

  • 1Jung W C, Hiroyuki S. Effect of Solidification of Mold Fluxes on Heat Transfer in Casting Mold [J]. Journal of Non-Crystalline Solids,2001,282(1) :110.
  • 2朱立光,王硕明.高速连铸保护渣结晶特性的研究[J].金属学报,1999,35(12):1280-1283. 被引量:16
  • 3Yoshiaki K, Carlos E C. Development of Double and Single Hot Thermocouple for in Situ Observation and Measurement of Mold Slag Crystallization [J]. ISIJ International,1998,38 (4) : 348.
  • 4Yoshiaki K, Kuniyoshi I. Factors on Measurement of Diffusivity of Molten Slag Using Double Hot Thermocouple Technique [J]. ISIJ International,2002,42(1) :71.
  • 5Yoshiaki K, Carlos E C. Investigation of Crystallization of Continuous Casting Mould Slag Using Single Hot Thermocouple Technique [J]. ISIJ International, 1998,38(4):357.
  • 6周亚栋.无机材料物理化学[M].武汉:武汉工业大学出版社,1992..
  • 7黄希牯.钢铁冶金原理[M].北京:冶金工业出版社,1997.
  • 8舒俊,金山同,张丽,曹卫文,宋任波,王向光.冷却速率对连铸保护渣结晶性能的影响[J].北京科技大学学报,2001,23(5):421-423. 被引量:6

二级参考文献9

  • 1[1]Bhamra M S, Charlesworth M G, Wong S, et al. Crystallization of Fluxes Under Varying Cooling Rates. In: ISS 1996 Electric Furnace Conference Proceedings. 1996. 557
  • 2[2]Kashiwaya Y, Cicutti C E, Cramb A W. Development of Douoble Hot-Thermocouple Technique for Direct Observation of Mold Slag Crystallization. In: ISS 1997 Electric Furnace Conference Proceedings. 1997. 617
  • 3[3]Kashiwaya Y, Cicutti C E, Cramb A W, et al. Development of Double and Single Hot Thermocouple Technique for in Situ Observation and Measurement of Mold Slag Crystallization. ISIJ International, 1998, 38 (4): 348
  • 4[4]Orrling C , Tilliander A , ashiwaya Y K, et al. Melting and Solidification of Mold Salgs. In: ISS. 1999 Steelmaking Conference Proceedings. 1999. 417
  • 5Lee I R,Conf Continnuous Casting of Steel in Developing Countries,1993年,832页
  • 6西北轻工业学院,陶瓷工艺学,1993年,4页
  • 7饶东生,硅酸盐物理化学,1991年,11页
  • 8浙江大学,硅酸盐物理化学,1980年,7页
  • 9朱立光,万爱珍,唐国章,金山同.神经网络连铸保护渣性能预测模型研究[J].炼钢,1998,14(3):37-39. 被引量:3

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