Brighter Aluminum Finishes from a Modified Chemical Brightening Solution Alcan International Limited Kingston Research and Development Centre Kingston, Ontario, Canada

Format:

Conference/Event

Author/Creator:

Fern, D., author.

Conference Name:

SAE International Congress & Exposition (1986-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1986

Summary:

In North America, aluminum automotive trim and bumpers are chemically brightened in a phosphoric acid-nitric acid based solution, while in Europe a modification of this, which contains additives of sulfuric acid and copper, is being used. These two types of chemical brightening solutions have not been compared systematically for automotive applications.This paper describes the chemical composition of the two chemical brightening solutions as well as the resulting image clarity and reflectance on AA-5252. AA-5657 and AA-7029. Results from laboratory and industrial plant trials are given which show the modified solution to be superior. The implications of converting to the modified solution, in terms of cost and waste acid handling, are discussed

Notes:

Vendor supplied data

Publisher Number:

860524

Access Restriction:

Restricted for use by site license