对于7～14公里钢板不开坡口的对接自动焊早已经实验证明,并在生产上得到应用。但15～22公厘钢板的自动焊对接,差不多都是采用开坡口的形式,或是在各种垫(焊剂、铜板、钢板等)上进行焊接。对于不开坡口不加垫的自动焊对接不但没有采用,而且这方面的资料也很少。 15～22公厘钢板的对接自动电孤焊,虽然以开坡口的形式应用得最广,但在坡口的准备工作上却要花去很多工时,同时_还要消耗很多的填充金属和焊接工时;在 For 7 ~ 14 km steel plate without groove butt welding has already been experimentally proven and used in production. However, 15 to 22 mm of steel plate automatic welding docking, almost all in the form of beveling, or in a variety of pads (flux, copper, steel, etc.) on the welding. Not without groove for automatic welding docking is not only not used, but there is little information in this regard. 15 to 22 mm steel butt joint automatic arc welding, although the most widely used in the form of beveling, but the preparatory work on the groove but it takes a lot of man hours, but also consume a lot of filler metal and Welding work time;