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US 4,309,220 AGranted
Inorganic adhesive for assembling metallic components
AssigneeOffice National d'Etudes et de Recherche Aerospatiales
InventorsAndre R. Hivert, Philippe M. Galmiche
Life of this patent
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Abstract
Adhesive composition which can be transformed into a metallo-ceramic cement by heat treatment. The binder for the composition is incorporated in the binder which sodium disilicate and the powdered metallic filler is composed of a mixture of aluminium-coated stainless steel powder and ultrafine chromium powder.
Claims7
Inorganic adhesive composition for bonding porous to non-porous metal structural components by means of heat treatment converting the adhesive compound into a metallo-ceramic cement, said adhesive composition comprising:
- a sodium disilicate binder;
- a powder metallic filler made up of a mixture of stainless steel powder having a grain size lying between 20 and 150 .mu.m, the grains of which are coated with a superficial layer of a diffusion alloy containing aluminium, and of the total weight of the filler being 15-40% ultrafine chromium powder having a grain size lying between 0.5 and 3 .mu.m.
Dependencies are inferred from the claim text.