Title: Method of coating articles of magnesium and electrolytic bath therefor
Application Number: 86108405 Application Date: 1986.11.03
Publication Number: 1018424 Publication Date: 1988.05.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C25D11/30
Applicant(s) Name: Otto Kozak (US) 1089 West Park Avenue, Long Beach, Address:
Inventor(s) Name:
Attorney & Agent: LUO YINGMING
Abstract:
     An electrolytic bath for coating articles of magnesium and its alloys consists essentially of an aqueous solution containing an alkali metal silicate (e.g., potassium silicate), an alkali metal hydroxide (e.g., potassium hydroxide) and a fluoride (e.g., hydrofluoric acid). In the process, the magnesium article is immersed in the bath and an electrical potential is applied between the magnesium article serving as the anode, and a cathode immersed in the bath until a visible spark is discharged on the surface of the metal. The potential difference is maintained for a few minutes until the desired coating thickness is formed.
Time: 6
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