Galvanische Anoden aus einer Aluminiumlegierung

摘要

A sacrificial anode for a cathodic protection system is formed from an alloy containing Zn 3.5-9%, Sn 0.05-0.2% and/or In 0.008-0.05%, impurities not more than 0.5%, Al the balance, and is solution treated and cooled rapidly to room temperature. The solution treatment may consist in heating to 800-925 DEG F. for 1-12 hours and quenching in a water bath or by air blast or water spray. Initially the anode may be quenched in hot water. Specification 962,494 is referred to.