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Posted by John S on Saturday, February 23, 2008 at 12:07:02 :
In Reply to: At one of the machine shops where I used to work posted by Clint Dixon on Saturday, February 23, 2008 at 11:19:15 :
Where I work the welders use mica dust to slow cool our hard faced parts. I have had several exhaust manifolds and other cast parts welded with good results. As Clint said after welding we place the part in the dust and leave it there as long as it takes to cool.
We have blankets for large parts as well.