我分厂三台一甲泵各自的泵出口是焊接高压三通。三通马鞍型的焊缝,平均每年各开裂一次以上,大约使用三年各更换一次三通。本人1983年在淮南化肥厂培训时,就亲眼目睹此焊缝泄漏,短停补焊,但补焊不到十天又开裂,不得不长停的事情。最后请南化机的二位焊工制作 I plant a three-pump their respective pump exports are welded high-pressure links. Three-way saddle-type welds, the average annual cracking more than once, about three years to replace the use of a tee. When I was training at Huainan Fertilizer Plant in 1983, I witnessed the leak of this weld seam and the short-stop repair of the welding seam. However, the repair welding had cracked in less than ten days and had to be stopped for a long time. Finally, ask the South welder two welders