Q345(16Mn) Tube is a kind of commonly used material in mechanism and engineering. Actually, the abnormal magnetization may cause bad effect on welding and even failure in welding. According to the principle of magnetization, adopting electromagnetism-oscillate can facilitate tube welding and clear up the difficulties in removing magnetization in tube welding.
【更新日期】
2010-10-19
【分类号】
TG143
【正文快照】
Q345(16Mn)管材为机械、工程中常用材料,焊接性能较好。在一高压泵站使用的Q345(16Mn)如下规格管材中:中139.7xl6mm、中114.3xl4.2mm、中89 .9 x 11mm、肠0.sxs.srnm、中33.7x6.8mm,出现管材非正常磁化,严重影响焊接。经现场测定管口磁感应强度(B)为l.6xlo一3一2.sxlo一3T,严重
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