SP System for Gold and Silver Spraying
It is critical to have a stable and predictable technological process working with precious metals.
The Kermetico SP High Velocity Air Fuel (HVAF) gun heats silver or gold powder just below their melting points which prevents material evaporation.
Then it delivers hot powder to the solid metal substrate at supersonic speed and deposits it densely.
With this system, you will not lose your precious metals due to evaporation. Most of it will be deposited as a high-quality coating; the remainder will go into your filtration system.
The HVAF SP System is specifically designed for the spraying of precious metals, Gold and Silver.
A Silver Coating Deposited by the Kermetico HVAF-SP System
This HVAF system is well suited for a precious metal coating process due to its low combustion temperature, high technological efficiency and process stability. The temperature of propane combustion in air – 1,980 °C (3,600 °F) is enough to preheat precious metal particles in the jet below their melting point as the dwell time is too short to melt them. Additionally, we protect axially injected particles from overheating in the combustion chamber with inert gas. We avoid metal deposition on the combustion chamber and nozzle walls by computational flow modeling and maximize deposition efficiency by engineering it into the trouble-free technology. And we supply spare parts that will not wear out for hundreds of hours, providing consistent plating quality and precious metal deposition efficiency. As a result, you will get a high-bond, 100% dense metal silver or gold coating with minimized (and predictable) material loss.
Key Features
- Axial powder injection.
- Protection against feedstock oxidation.
- No precious metal evaporation in the coating process.
- Deposition of uniform, dense, high-bond gold and silver coatings 50-500 microns (0.002” – 0.020”) thick.
Click on the following link for more information on the HVAF SP System for Gold and Silver.
For more information on this equipment, call us on 07 3823 1004, or email us using our contact form.
