Adhesively bonded aluminum

Details Adhesively bonded aluminum Adhesively bonded aluminum

1991-11-04

1994-06-28

McCamish, Marion E.

Stock material or miscellaneous articles

Composite

Of metal

428416, 205 58, 148253, 148255, 148256, 204 90, C25D 1118

Patent

active

053245873

ABSTRACT:
A laminate suitable for vehicular applications includes at least two sheets of aluminum alloy and an adhesive layer between the sheets bonding them together. An oxide layer on surfaces of the sheets is treated with a phosphorous acid electrolyte, so that a coordination number of four predominates for the aluminum-oxygen-phosphorous bond. Equivalent bonding strengths in the laminates are obtained in substantially less time with phosphorous acid treatment compared with phosphoric acid treatment.

REFERENCES:
patent: 4025681 (1977-05-01), Donnelly et al.
patent: 4085012 (1978-04-01), Marceau et al.
patent: 4127451 (1978-11-01), Marceau et al.
patent: 4604341 (1986-08-01), Mohr

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