Simulation of Compound Rolls Produced by Electroslag Remelting Cladding Method

Metals

Ganna Stovpchenko¹  Lev Medovar¹  Xin Deng²  Zhiwen Hou³  Yanwu Dong³  Yulong Cao³  Haibo Cao³  Zhouhua Jiang³ 

[1] E.O. Paton Welding Institute of Ukraine, 03150 Kyiv, Ukraine;School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China;School of Metallurgy, Northeastern University, Shenyang 110819, China;

关键词: compound roll;    electroslag remelting cladding;    dynamic mesh;    interface bonding quality;    multiphase flow;    t-shaped current carrying mold;   

DOI  :  10.3390/met8070504

来源: DOAJ

【 摘 要 】

Electroslag remelting cladding (ESRC) with a t-shape current carrying mold was adopted to make a compound roll including a working layer and mandrel. A comprehensive coupled transient model was established to reveal the basic phenomena of electromagnetic fields, flow fields, temperature fields, and multiphase flow. Meanwhile, the movement of the mandrel and working layer relative to the slag pool was simulated by dynamic mesh technology to reveal the interface bonding mechanism. The mechanism is as follows: The temperature of the mandrel increases and the mandrel melts slightly when the mandrel passes through the slag pool. The fusion layer is a mixture of molten steel of mandrel and working layer that is the connector between the mandrel and the working layer. Therefore, the interface bonding quality is dependent on a fusion layer that is affected by the voltage/power. The investigation indicates that the fusion layer thickness is between 2 and 4 mm in the condition of 40 V that benefits from obtaining a good interface bonding quality.

【 授权许可】

Unknown