Inaccessible leaks repaired from accessible side of tube. Fish-Mouth insert placed in cut in leaky heat-exchanger tube. Insert welded or brazed to tube, and remaining open area of cut patched. Method developed for repairing leaks in nozzle coolant tubes of Space Shuttle main engine. Method also used on other types of tubular heat exchangers.
Repairing Hard-to-Reach Cracks in Heat-Exchanger Tubes
NASA Tech Briefs ; 10 , 3
1986-05-01
Miscellaneous
No indication
English
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