不銹鋼合成塔筒體的焊接工藝方法
合成塔筒(tong)(tong)體采(cai)用材(cai)料為(wei)321不銹鋼制(zhi)作(zuo),板厚12mm,筒(tong)(tong)體直徑940mm,長9m.工作(zuo)壓(ya)力1.76MPa,溫(wen)度≤530℃.筒(tong)(tong)體焊后要求焊縫(feng)(feng)(feng)總長25%進行X射線探傷檢測。 筒(tong)(tong)體縱(zong)縫(feng)(feng)(feng)、環縫(feng)(feng)(feng)的(de)坡(po)口(kou)形式(shi)均為(wei)V形,如(ru)圖5-4所示。坡(po)口(kou)用機(ji)械(xie)加工方法或用碳弧氣刨加工,...