Φ508mm×9.5mm L450MB钢级ERW管线管的试制  

Trial Manufacture of Φ508mm×9.5mm L450MB ERW Linepipe

作　　者：史宏德[1] 叶欢[1] 夏喜红[1] 熊建辉[1] 

机构地区：[1]宝山钢铁股份有限公司宝钢分公司钢管厂,上海201900

出　　处：《钢管》2007年第6期29-31,共3页Steel Pipe

摘　　要：焊缝冲击功低且不稳定是ERW管线管生产的一大技术难点。针对高钢级L450MB焊管存在焊缝冲击功不稳定的情况,宝山钢铁股份有限公司宝钢分公司钢管厂采取降低焊接速度、调整热处理工艺的技术方案,试制出焊缝冲击韧性符合标准要求的L450MB钢级ERW管线管。Low and inconsistent impact energy of the weld seam is regarded as a major technological problem relating to manufacturing of ERW linepipe. Addressing the problem of inconsistent impact energy of the hi-grade L450MB ERW pipe, the Steel Tube Plant, Baogang Co., Baoshan Iron ＆ Steel Co., Ltd. has produced by trial the L450MB ERW linepipe which is up to the impact toughness of weld seam as specified in applicable standard by adopting a technical solution involving such actions as reducing the welding speed and adjusting the heat treatment process.

关 键 词：L450MB钢级 ERW管线管 焊缝冲击韧性 焊接速度 热处理 

分 类 号：TG457.6[金属学及工艺—焊接]