Microscopic pores in thin-walled aluminum castings are sealed by impregnation pretreatment. Technique was developed for investment castings used in hermetically sealed chassic for electronic circuitry. Excessively high leakage rates were previously measured in some chassis.
Sealing micropores in thin castings
NASA Tech Briefs ; 5 , 3
1981-01-01
Miscellaneous
No indication
English
SAE Technical Papers | 1940
SAE Technical Papers | 1940
Repairing sealing surfaces on aluminum castings
NTRS | 1980
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