Re: Extreme size welding

Posted by 135 Fan on October 30, 2006 at 10:37:57 from (68.149.51.133):

In Reply to: Re: Extreme size welding posted by mjbrown on October 30, 2006 at 05:22:52:

My friend did a lot of the piping work on the 400 ton cokers [in picture] for Suncor at Dacro. 4 inch double extra heavy pipe welded with an automatic orbital TIG welder. It had to be to nuclear specs!, meaning that if it had a flaw in the X-ray, the complete joint had to be cut out and redone! Most times the weld can be repaired without having to cut the whole joint out. All of this big stuff is pre heated before and during welding and stress releived after welding so there are are absolutely no stress points that could fail. Most vessels have extra thickness built in to allow for some corrosion. The trucking to move these big vessels is astronomical but still not even close to millions some of these vessels cost. Special saddles are made to hold and carry the vessels on the trailers. I think there only used once and there not cheap either. Imagine if there wasn't welding? It is one of the most important technologies needed for daily living. Thought some people might be interested in seeing some big weldments. Dave

Replies:

• Re: Extreme size welding TomH in PA 16:21:50 10/30/06 (0)

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