start-up tabs/high-frequency 怎讲(焊接)? starts / stops : by either start-up tabs or by high-frequency starting. scratch starting is not permitted. starts and stops shall be staggered as much as possible on successive weld passes. all craters shall be ground with a metal burring tool before the next pass of weld metal is deposited. (焊接)启/停点: 可以从启动点处或利用高频开始焊接。不允许从刻槽处开始。对于连续焊道, 启/停点 要尽量错开。所有弧坑处在下一道焊缝金属熔敷之前都应该用金属打磨工具进行修磨。 查看更多