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我们在生产中,经常碰到机床铸件,如床身、齿轮箱、导轨等所产生的缺陷(裂纹、气孔、沙眼)需要焊补,下面根据我们的生产实践,就有关铸铁焊补中的几个问题,谈谈体会,和同行师付们讨论、交流。1.在铸铁焊补中,开好坡口是十分重要的,从而能够保证母材和焊条的更好熔合,避免产生气孔,夹渣。总的来说,开坡口有两个目的,一是为了将整个缺陷全部焊
We often encounter in the production of machine tools castings, such as bed, gear box, rails and other defects (cracks, pores, trachoma) need welding, the following according to our production practices, on the cast iron welding in the few A question, talk about experience, and their colleagues to discuss and exchange. 1. In the cast iron welding, open a good groove is very important, which can ensure a better base metal welding and welding, to avoid porosity, slag. In general, the groove has two purposes, first, in order to weld the entire defect