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《Iron & Steel》 2009-12
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Temperature Detection and Heat Transfer Analysis for Copperplate of CSP Process Funnel Shaped-Mould in Masteel

DING Yi1,2,ZHANG Hui1,TAO Hong-biao1,ZHANG Zong-ning2,CHEN Yuan-qing1,LIU Ai-qiang1(1.National Engineering and Research Center of Continuous Casting Technology,CISRI,Beijing 100081,China;2.Technology Center of Ma'anshan Iron and Steel Co.,Ltd.,Ma'anshan 243000,Anhui,China)  
The copperplate temperature in different conditions and different time were collected on line using mould temperature monitoring soft of the continuous thin slab caster in Ma'anshan Iron and Steel Co.,Ltd.,and also the mould copperplate temperature change regularity was analyzed in order to obtain proper heat flux boundary conditions for solving thin slab flow,heat transfer and solidification model and references for revealing crack formation mechanism of mould copperplate and slab.According to actual cooling parameter and measured temperature of copperplate,the mould heat flux field has been calculated while producing the SPHC steel slabs whose section were 1 275 mm × 70 mm and 1 525 mm × 70 mm respectively at different casting speed.The results show that distribution of copperplate temperature and heat flux of the mould was similar on the same conditions.Both of them had downtrend in the longitudinal direction of mould.Their fluctuations are obvious in the transverse direction of mould especially near meniscus.While the slab whose width was 1 275 mm and 1 525 mm were cast with the same nozzle,distribution curves of copperplate temperature and heat flux of the mould on the whole presented to be "M" and "W" shape in the transverse direction respectively.In another word,the maximum value of copper temperature and the heat flux were in the quarter and centerline of copperplate broadside respectively.The maximum heat flux was 4.6 MW/m2.
【Fund】: 国家自然科学基金资助项目(50674034)
【CateGory Index】: TF777
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