Method for increasing the corrosion resistance of aluminum and a

Details Method for increasing the corrosion resistance of aluminum and a Method for increasing the corrosion resistance of aluminum and a

1995-09-28

1997-07-29

Pianalto, Bernard

Coating processes

With post-treatment of coating or coating material

Heating or drying

427435, 4274432, B05D 302

Patent

active

RE0355763

ABSTRACT:
Aluminum and aluminum alloys are protected from corrosion by immersion in an alkaline lithium or alkaline magnesium salt solution. Immersion in the salt solution causes the formation of a protective film on the surface of the aluminum or aluminum alloy which includes hydrotalcite compounds. A post film formation heat treatment significantly improves the corrosion resistance of the protective film.

REFERENCES:
patent: 3973998 (1976-08-01), Datta et al.
patent: 4004951 (1977-01-01), Dorsey , Jr.
patent: 4054466 (1977-10-01), King et al.
patent: 4063969 (1977-12-01), Howell, Jr.
patent: 4319924 (1982-03-01), Collins, Jr. et al.
Abstract from Dialog File 33: Aluminum Industry Abstract Patent No. Japanese J7 7026,211 (16 Feb. 1973) Journal Announcement: 7801.
Isobe, y. et al., "Chemical Conversion Treatment of Aluminum Alloys with the Mixed Solution of MgSO.sub.4 and NaHCO.sub.3 ", Boshoku Gitutsu (Corrosion Engineering), 38, pp. 161-166 (1989) (including English Translation) (no month avail.).
Tanaka, S., et al., "Chemical Treatment of Aluminum Alloys with the Mixed Solution of LiNO.sub.3 and NaHCO.sub.3 ", Boshoku Gijutsu (Corrosion Engineering) 39, pp. 425-431, Aug. 15, 1990 (and English Translation).
Mushiro, M., et al., "Studies on Aluminum Oxide Film Formed in Alkaline Baths Containing Nitrates, Part 1", Metal Finishing Society of Japan, 23, pp. 370-374 (1972) (no month avail.).
Uchiyama, T., "Recent studies on chemical oxide coatings of aluminum," Japan Institute of Light Metals (Kei-Kimz oku), 32, pp. 202-210 (1982) (no month avail.).
Uchimaya, T., "A Study on Chemical Conversion Coatings Formed on Aluminum in Boiling Sea Water," Metal Finishing Society of Japan (Kinzoku Hyomen Gitjutsu), 37, pp. 178-183 (1986). (No month avail.).

Affiliated with

Also associated with

Rating

Method for increasing the corrosion resistance of aluminum and a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for increasing the corrosion resistance of aluminum and a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for increasing the corrosion resistance of aluminum and a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-626482