Report discloses technique to patch holes in nickel-alloy rocket-engine nozzle parts prior to vacuum brazing. Technique involves lightly spot-welding nickel foil 0.002 in. thick over hole patched, then spot-welding corrosion-resistant steel foil of same thickness over nickel foil. Once patches subject to pressure and temperature of vacuum brazing, nickel foil diffuses to bond with nickel-alloy nozzle, making vacuum-tight seal.


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    Title :

    Foil Patches Seal Small Vacuum Leaks


    Contributors:

    Published in:

    Publication date :

    1995-11-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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