Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1977-03-09
1978-04-04
Bashore, S. Leon
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
134 21, 134 22R, 134 30, 134 34, 164132, B08B 310, B22D 2900
Patent
active
040825663
ABSTRACT:
Cores made of either Y.sub.2 O.sub.3, Y.sub.3 Al.sub.5 O.sub.12, LaAlO.sub.3, MgAl.sub.2 O.sub.4 or Al.sub.2 O.sub.3 are removed from castings of advanced superalloy materials by immersion in a molten salt bath of either Li.sub.3 AlF.sub.6 or a mixture of CaF.sub.2 -- NaF.
REFERENCES:
patent: 3957104 (1976-05-01), Terpay
Chem. Abstracts, Abstract No. 4676h, vol. 62, 1965, p. 4676.
Arendt Ronald H.
Borom Marcus P.
Huseby Irvin C.
Klug Frederic J.
Bashore S. Leon
Caroff Marc L.
Cohen Joseph T.
General Electric Company
Squillaro Jerome C.
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