A Comprehensive Electromagnetic Model of Electrical Slag Surfacing with Liquid Metal Process for Preparing Compound rolls:Description and Validation
The process of Electrical slag surfacing with liquid metal(ESS LM)is a complex physical and chemical process including electric field,magnetic field,flow field and temperature field,etc.As the complicated technology and high cost of manufacturing compound rolls,simulating the relationship between ESS LM process parameters and physical fields of ESS LM process is important.Through the numerical simulation of finite volume method to the process of ESS LM in the conditions of different roll core diameters,slag amount,pouring speed,pouring temperature and input power,temperature field and flow field in different conditions were obtained.When the diameter of core material,operation voltage,pouring rate,pouring temperature and slag height of conductive mold was 250mm,40V,8mm/min,1750K and 50mm respectively,the depth of molten metal was 30mm and fusion thickness of core material was 5mm which was consistent with the experiment results.According to the simulation results,operation with voltage of 42V,cladding speed of 10mm/min,pouring temperature of 1760K and slag height of 54mm in the conductive mould,achieved much more shallow metal pool,which is beneficial to vertical crystallization.
ESS LM electromagnetic force heat Production compound Roll
LI Wan-ming GENG Xin LI Hua-bing FENG Hao JIANG Zhou-hua
School of Materials and Metallurgy Northeastern University,Shenyang 110819,Liaoning,China
国际会议
The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)
北京
英文
1-4
2012-10-22（万方平台首次上网日期，不代表论文的发表时间）