2.Cover with glass wool on entire mass except weld/repair area
3. Preheat to min 200 degree celsius and maitain till completion of weld
4. Carry out peening for every weld metal of each electrode till make the weld metal almost flat
5. after completion of weld, cover with glass wool.
Pandithan
Welding Consultant
-- On Sun, Dec 23, 2012 at 11:41 PM, pgoswami <pgoswami@quickclic.net> wrote:
--Dudy,
By and large Gray and nodular cast irons are weldable, NOT THE WHITE CAST IRONS.
The recommended electrodes for welding these two mentioned varieties are :- Pure -99% Nickel type, and 55 -45 Ni-Fe type . By and large a sustained preheat & interpass temperature control would be recommended - of the range 150-250 Deg C. Note cast iron can be only repaired,do not expect to have very high level of metallurgical integrity from this repair.
Please find the links below as useful guidelines.
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Dudy Firdaus
Sent: Sunday, December 23, 2012 1:50 AM
To: materials-welding@googlegroups.com
Subject: [MW:16305] Welding for cast iron repair
Dear Experts,
Could you share me the best experiences regarding with welding for cast iron repair?
What in best process of welding and spec of the electrodes?
Highly appreciated for your help.
Thanks.
Kind Regards,
Dudy Firdaus
m: +62 85859020475 ; +62 81217149000
e: dudy.pfirdaus@yahoo.com.au
www.linkedin.com/pub/dudy-firdaus/1a/44/558
Sent from my Private BlackBerry®
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