药芯埋弧焊丝W110熔敷金属的焊接热模拟研究
Study on Welding Thermal Simulation of Deposited Metal of Flux Cored Submerged Welding Wire W110
李晓峰1， 陈冰泉2， 黄永溪3
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作者单位：1.武汉理工大学(余家头校区)工程训练中心，湖北 武汉 430063；2.武汉理工大学 材料学院 ，湖北 武汉 430070；3. 中钢邢台机械轧辊有限公司 修复公司，河北 邢台 054025
中文关键字：轧辊堆焊； W110埋弧焊丝； 焊接热模拟
英文关键字：roller building up; W110-wire for submerged welding; welding thermal simulation
中文摘要：对用于轧辊堆焊的药芯埋弧焊丝W110熔敷金属进行了焊接热模拟研究。通过焊接热模拟试验、硬度测试、微观分析等手段对W110焊丝熔敷金属在七种焊接热循环条件下得到的组织和性能进行了研究。研究表明，该焊丝熔敷金属的Ms点在260～280℃； 用W110焊接时的预热温度可选用280～300℃，层间温度应不低于260℃，回火温度应避开450～550℃。
英文摘要：The deposited metal of flux cored submerged welding wire W110 used for rollers building up was investigated by welding thermal simulation. By means of welding thermal simulation experiment, hardness testing, and micro-analysis, the structure and properties of the deposited metal were analyzed at different welding thermal cycles. The results show that the Ms point of W110-deposited metal is 260～280℃, the preheating temperature of W110-wire is 280～300℃ and the interlayer temperature should be higher than 260℃ during welding, and temperature should be not at 450～550℃.