在锅炉及化工容器中,大多采用多块瓦瓣拼焊的球形封头。过去焊接这种封头,随焊缝位置的不同,以平焊、立焊等各种不同的操作形式进行焊接。这样工人劳动强度高,工时消耗多,焊接质量差。针对这种情况,我厂老师傅革新了球型封头焊接回转胎,使焊接操作一直保持在平焊位置,提高了生 In the boiler and chemical containers, most of the use of multi-piece welded tile head seal. In the past welding such a head, with the welding seam of different positions, with flat welding, vertical welding and other forms of operation for welding. This high labor intensity, labor-intensive, poor welding quality. In view of this situation, our factory master innovative ball-head welding rotor, the welding operation has been maintained in the flat welding position, improve students