介绍了坡口加工、焊前清理和上下塔对接施焊进程。
Groove preparation, cleaning before welding and butt welding construction of ther tower were showed.
在氨饱和器焊接中采用钨极氩弧焊与焊条电弧焊相结合的焊接方法，重视焊前清理和焊接线能量控制，既保证焊接质量又提高生产效率。
Applied GTAW and SMAW to weld Ammonia Saturator with emphasis on preweld treatment and controlling welding heat input, high welding quality and efficiency were reached.
应用推荐