Pretreatment for the resistance welding of aluminum

Details Pretreatment for the resistance welding of aluminum Pretreatment for the resistance welding of aluminum

1976-08-13

1978-06-27

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 63, 427419D, C23F 706

Patent

active

040973123

ABSTRACT:
This invention relates to a method of pretreating an aluminum surface for the resistance welding thereof wherein an oxide coating is formed on the aluminum surface having a controlled electrical resistance and then the oxidized surface is stabilized by treatment with a hot aqueous alkaline solution containing long chain carboxylic acids.

REFERENCES:
patent: 2963391 (1960-12-01), Kubie
patent: 3734784 (1973-05-01), Bereday et al.
patent: 3799848 (1974-03-01), Kolic et al.

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