各位前辈：
请问波峰焊运输速度的最大值和最小值是多少？这个最大值和最小值是根据预热来控制的还是根据焊接时间3~5s来控制的？另外这个焊接时间是两个波峰的焊接时间之和还是？如果开一个大波峰关掉小波峰焊接时间也要3~5s吗？谢谢各位指点迷津，非常感谢！！！
Best Regards!
dai hua/代华
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