Process for hydrophilization of metal surfaces and/or metal oxid

Details Process for hydrophilization of metal surfaces and/or metal oxid Process for hydrophilization of metal surfaces and/or metal oxid

1979-09-20

1981-09-29

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 627, 72 46, 204 58, C23F 700, C23F 706

Patent

active

042920957

ABSTRACT:
This relates to the hydrophilization of metal surfaces and/or metal oxide surfaces. In the forming of sheet metal by drawing and wall ironing methods, in the past it has been necessary to provide lubricants so as to not only protect the metal, but also to hold down friction noises. The lubricants are difficult to remove and require expensive washing processes after the forming operation. It has been found that an hydroxide of the metal involved may be readily generated on the surface so that the surface is easily wetted by water, for example, and thereby conventional lubricants are eliminated.

REFERENCES:
patent: 2369596 (1945-02-01), Millen
patent: 3231376 (1966-01-01), Sorkin et al.
patent: 3266900 (1966-08-01), Zelly
patent: 3549372 (1970-12-01), Richlin et al.
patent: 4028205 (1977-06-01), Dorsey
patent: 4149912 (1979-04-01), Craighead
Suzuki, Chem. Abs., 83:83811c (1975).
Swiss Aluminum Ltd., Chem. Abs. 67:14436s (1967).

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