ZINC ALLOY PLATING

摘要

The application of sacrificial coatings onto steel and other ferrous substrates has long been established as an effective and reliable standard of the industry for corrosion protection. Due to its lower cost, zinc has been the predominant coating, although cadmium has also been widely used where zinc fails to provide the necessary corrosion protection for certain applications. Recent demands for higher quality finishes, and, more specifically; longer lasting finishes, have resulted in a move toward alloy zinc electrodeposits. This has been especially true in the automotive industry,-but is also true in the aerospace, fastener, and electrical component fields, among others. Additionally, cadmium users are under increased pressure to stop using it due to its toxic nature.