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Old timer told me to always preheat my electrodes and I thought he was full of it

Guy named Mike at the union hall in Chicago kept saying I'd get less cracking if I baked my rods first. I ignored him for about six months until I had a big job at a refinery where every single weld on a 3/4 inch plate failed the x-ray. Sure enough, I started running them through the oven at 400 degrees for two hours and my rejection rate dropped to almost nothing. Any of you guys bother with that or am I just late to the party?
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3 Comments
susan81
susan818d ago
400 degrees for two hours fixed my hydrogen problems too.
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danielm80
danielm808d ago
Read an article that said its the hydrogen.
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the_robin
the_robin8d ago
Ran my rods through the oven for a job out in Odessa a few years back, and my helper thought I was crazy. He kept asking if we were baking cookies and I told him yeah, titanium dioxide cookies with a side of flux. Then a week later he dropped his lunch on the floor and picked it up, put it in the rod oven for ten minutes, and ate it. Said it was the best burrito he ever had. Never looked at a low-hydrogen rod the same way after that.
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