我厂在生产中常用的中厚板,厚度在14～30毫米之间。这个厚度范围内的板材对接焊,过去通常是先加工出不同形式的坡口,以保证焊透。为了简化焊前加工,提高生产率,我们采用了不开坡口留适当缝隙埋弧自动焊的工艺方法,经几年来生产实践的证明,这种方法是可行的。和开坡口焊的老方法相比,有简单易行的优点。下面从实际操作的角度,将我们的做法和体会简要介绍一下: I plant in the production of commonly used plate, the thickness of 14 to 30 mm. The thickness of the plate butt welding, the past is usually processed into different forms of bevel to ensure penetration. In order to simplify the welding pre-processing, increase productivity, we have adopted a non-groove to leave the appropriate submerged arc automatic welding process, after years of production practice proved that this method is feasible. Compared with the old method of grooved welding, there is an advantage of simplicity. The following from the practical point of view, our practice and experience a brief introduction: