[Test everyone] Those who don’t understand can’t figure out what this picture means no matter how much they look at it, but those who understand can understand it at a glance.
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Finally, this post was edited by Mrleeyul on 2020-1-8 15:13. I wanted to expect a like-minded person to be able to see clearly. However, I didn’t get the answer I wanted for a long time, that is, I didn’t find someone who could tell me the answer I wanted. After repeated thinking, I found that the question I asked may not be clear. Now let’s clarify it again. Why are the colors of the welds different for this weld? Those of you who actually work with welding torches should already know the answer by now. Heat exchanger equipment technology circle
This is an argon arc weld made by my second brother from the countryside. The arc starting is poor and it lacks gas protection!
You feel like you understand, but it doesn’t really matter
Let me remind you, why are the two sides different colors?