Foced cooling by air on Inconel GTAW overlay

[ABHISHEK SINGH]

Dear Experts, 

             I am doing GTAW inconel overlay in I.D of carbon steel pipe. Can I use forced air cooling form outside on carbon steel pipe for fast cooling to avoid interpass temperature??

Regards

Abhishek

[Nitin Shetty]

Dear Ahishek,

Forced air cooling will not serve your purpose. Since you r doing an ID overlay say for a 2" dia pipe then forced air cooling will not at all help. We use a jacket which is made to the OD of the Pipe with and inlet and an outlet to it. Industrial coolant is used and it passes through this jacket continuously. The ID of the jacket is wound with and copper windings since being a good conductor of heat. This will help you in maintaining the interpass temp. We use this technique even though it might be primitive.

regards

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/f3370615-0c3a-4351-b87f-43595096bc65%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.