不銹鋼合成塔筒體的焊接工藝方法
合成塔筒(tong)(tong)體采用(yong)材料為(wei)321不銹鋼制作,板(ban)厚(hou)12mm,筒(tong)(tong)體直徑940mm,長9m.工作壓力1.76MPa,溫度≤530℃.筒(tong)(tong)體焊后(hou)要求(qiu)焊縫(feng)總長25%進(jin)行X射線探(tan)傷(shang)檢(jian)測(ce)。 筒(tong)(tong)體縱(zong)縫(feng)、環縫(feng)的(de)坡口(kou)形(xing)式均(jun)為(wei)V形(xing),如圖5-4所(suo)示。坡口(kou)用(yong)機械(xie)加工方法或用(yong)碳弧氣(qi)刨加工,...