Mold material carried to internal weld joint and removed after impression taken. Remotely operated device makes impression mold of interior surface of tube at weld joint. Mold provides indication of extent of mismatch between members at joint. Maneuvered to weld inspected through curved tube 3 in. in diameter by 50 in. long. Readily adapted to making molds to measure depth of corrosion in boiler tubes or other pipes.
Making Internal Molds Of Long, Curved Tubes
NASA Tech Briefs ; 13 , 9
1989-09-01
Miscellaneous
No indication
English
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