BHW35锅筒纵、环焊缝焊接缺陷分析及控制

BHW35 boiler longitudinal and circumferential weld defect analysis and control

BHW35钢淬硬倾向显著,容易冷裂,提出了预热和焊后热消氢处理是防止冷裂纹产生的有效措施。通过对某公司锅筒纵、环焊缝焊接常见缺陷分析,说明合理的焊接工艺和焊接工艺条件保证是获得无缺陷优良接头的前提条件。

BHW35 steel has notable hardened trend,and cold cracked easily. The treatment of pre-heat and post-weld hydrogen remove was indicated. After analyzing a company 's boiler drum longitudinal and circumferential weld,it was proved that proper welding process is essential for defect-free joint.