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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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700° F
Or thereabouts , and the weld didn't crack as it cooled . I used one of my
foundry/forge burners today to heat up that CI fire pot that had me frustrated the other day , and sucessfully repaired the crack . After the repair I wrapped it in fiberglass batt to cool slowly , didn't melt the 'glass . The Invar 42 Dan sent me worked flawlessly . It even looks like a pretty decent TIG weld . After I finished that piece I built up a small firebrick enclosure for the fire grates and did a short test preheat to make sure I wasn't blowing flames out where I didn't want them . In the morning I'll fire up the burner on low and gradually heat them up to about the same temp as the part today . Hmm , better finish veeing out the cracks first ... -- Snag My apologies for posting on topic . |
#2
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700° F
On Monday, December 21, 2015 at 7:16:52 PM UTC-5, Terry Coombs wrote:
The Invar 42 Dan sent me worked flawlessly . It even looks like a pretty decent TIG weld . Snag My apologies for posting on topic . Glad to hear it worked well. When I saw it at Boeing Surplus, I thought it might work for cast iron. And at a dollar a lb. seemed like it might be worth getting. Dan |
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