Lubricated cupreous sheet comprising an organophosphonate layer

Details Lubricated cupreous sheet comprising an organophosphonate layer Lubricated cupreous sheet comprising an organophosphonate layer

1980-01-11

1982-01-26

Cannon, James C.

Stock material or miscellaneous articles

Composite

Of silicon containing

148 615R, 148 616, 252389A, 427327, 4274071, 427409, 427417, 428457, 428470, 428497, B05D 508, B32B 1518, C23F 700

Patent

active

043129226

ABSTRACT:
Copper or copper alloy sheet or foil displaying improved forming and working properties is prepared by the provision over its surface of a thin coating containing a copper salt of an organophosphonic acid, and subsequently, an outer film of lubricant strongly retained by the coating is applied. To form the coating, the sheet or foil is immersed for a short time in an aqueous solution containing a phosphonic acid, rinsed and dried, the treatment being combined with or preceded by oxidation of the sheet surface, and the lubricant film is applied prior to forming operations, preferably as the final step in the production of the cupreous sheet.

REFERENCES:
patent: 3293088 (1966-12-01), Hofheim
patent: 3431217 (1969-03-01), Hwa
patent: 3630796 (1971-12-01), Schmidt
patent: 3634146 (1972-01-01), Wystrach
patent: 3899364 (1975-08-01), Evans et al.

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