start-up tabs/high-frequency 怎讲(焊接)? 关于焊接技巧: 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. 开始 /停止 :利用 开始接头 或利用高频开始。不许从划痕开始 。对于连续焊道,开始与停止要尽量交错。所有弧坑在下一道焊缝金属熔敷之前都应该用金属锉进行打磨。(请指正) [ ]查看更多3个回答 . 5人已关注