高中压外缸焊接及补焊的工艺研究  

Study of the Welding and Repair welding Technology for High Inter Case of Turbine

作　　者：黄勇[1] 刘贻兴[1] 

机构地区：[1]东方汽轮机厂,四川德阳618201

出　　处：《东方电气评论》2004年第2期78-81,120,共5页Dongfang Electric Review

摘　　要：高中压外缸材质为珠光体耐热钢,其焊接性较差,焊接时易产生冷裂纹、热裂纹、再热裂纹。在焊接中针对性地采用适当的焊接工艺方法,从而避免产生裂纹;在补焊过程中,采用合适的工艺方法和措施,保证了补焊质量。The material of the high inter case of the turbine is the heatproof steel.Because the capability of welding is not fine,the tendency of the cold crack,hot crack and re hot crack is greater.In order to avoid the cracks,the proper welding technology and method are adopted in welding.According to the different status,the different welding technology and method are applied in repair welding,so the quality of the repair welding is ensured.

关 键 词：蒸汽轮机 汽缸 高中压外缸 焊接工艺 补焊工艺 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]