水轮机导叶多为铸钢件,不仅加工、铲磨量大,难以保证导叶型线的正确,而且由于铸钢件质量不高,在划线工序时就报废不少,粗加工后常出现砂眼、气孔还需补焊,再打磨又费工时,影响工人健康,加上不能及时提供毛坯,影响加工周期。近年来我厂设计了焊接导叶,现介绍如下: Turbine guide vanes are mostly cast steel parts, not only processing, scooping a large amount, it is difficult to ensure the correct guide vane line, and because the quality of castings is not high, a lot of scrapped in the marking process, often appear after roughing Trachoma, stomata still need to repair welding, grinding again and working hours, affecting the health of workers, coupled with the timely provision of rough, affecting the processing cycle. In recent years, I plant the design of the welding guide vane, are introduced as follows: