The twin-arc method of deposition, also known as Two-Wire Electric Arc Spraying, relies on an arc-point formed by two electrically conductive wires. When the two wires meet, melting transpires. The “arc” is the heating force that enables melting and deposition, in much the same way that a combustion flame powers a combustion flame spray torch. Following melting, compressed air is utilized to spray the melted coating material onto the target object.
To accommodate customers who require this process, Longevity Coatings has acquired one of today’s most advanced twin-wire arc spray systems. This computer-controlled system combines precisely controlled spray head air pressure with an automatically controlled spray rate to produce superior air flow characteristics. Together with an enhanced power supply system that increases deposit efficiencies, this state-of-the-art system ensures a high density coating and consistent, repeatable coating quality.
This procedure is cost-effective, easy to apply and widely used in low-performance applications. It is often used for chrome plate replacement, heavy build-up, salvage/repair and other industrial applications. Zinc and aluminum are commonly used as feed-stock; when twin-arc sprayed, these materials provide excellent corrosion resistance.