目前,铸铁焊接工作正在大力推广。开焊接坡口是焊补工作中重要一环。究竟应怎样开坡口,开什么形式坡口最好,是大家所关心的。下面谈谈个人粗浅看法。不当之处请提出商榷,开坡口的目的是为了使零件能够焊透,焊的结实一些。但就铸铁来说,还有清除油污、予热工件并为下一步焊接创造有利条件的作用。因此,坡口的开制方法、坡口 At present, cast iron welding work is vigorously promoted. Open welding groove is an important part of welding work. What should be how to open a groove, what kind of bevel groove is the best, is everyone’s concern. Here to talk about personal superficial view. Inappropriate place, please put forward a question, the purpose of beveling is to make the parts to penetrate, the weld firm. But as far as cast iron is concerned, there is also the role of removing oil stains, giving hot workpieces and creating favorable conditions for the next step of welding. Therefore, the method of preparation of bevel, bevel