Numerical simulation of 80 ℃ temperature field distribution of thick plate multi-pass welding with SYSWELD

作     者：Han Tao Zhang Hongjie Wu Qian Bao Liangliang Zhu Xiaoyu Ding Ling 韩涛;张洪杰;吴倩;鲍亮亮;朱小妤;丁玲

作者机构：College of Mechanical and Electrical EngineeringChina University of Petroleum (East China) 

出 版 物：《China Welding》 (中国焊接（英文版）)

年 卷 期：2018年第27卷第1期

页      面：20-25页

学科分类：080503[工学-材料加工工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：Project(No.2016ZDJS05B03)supported by Shandong Key Research Development Plan,Project(No.17CX06005&No.18CX06054A)supported by Department of Science&Technology of Shandong Province the Fundamental Research Funds for the Central Universities 

主　　题：thick plate multi-pass welding SYSWELD 80℃temperature field distribution 

摘      要：The PPG PITT-CHAR XP flame retardant system has been used by COOEC to preventing the thermal softening of steel in the high temperature,whose degradation temperature is 80 ℃.To prevent damage to PPG PITT-CHAR XP fire retardant paint from excessive heat during welding,it is necessary to get accurately reserved area near the welding joints prior to welding. For the foregoing reasons,the 80 ℃ temperature field distribution of thick plate multi-pass welding was analyzed with *** influence of welding groove form and time interval on welding temperature field was also analyzed. Results showed that the range of 80 ℃ welding temperature field increased with the increasing of weld layers at first and then it inclined to stable value. Interpass time setting was crucial to control the range of 80 ℃ welding temperature field. It was also found that double V groove had better thermal diffusivity than double-bevel *** double-bevel groove was better than single V groove.