Spray and Fuse Gun
The MST-100 is an oxy-acetylene gas gun that deposits special alloy powders onto ferrous surfaces to rebuild worn parts or protect against corrosion and abrasion. The deposited alloy metallurgically fuses with the substrate, creating a firmly bonded coating. The gun is designed to spray various powders.
Process
The spray and fuse coating involves two steps: applying a self-fluxing alloy coating by thermal spraying, then fusing the coating by applying very high heat (1900–2000°F). This fusion creates a metallurgical bond with the substrate. The resulting coating is dense, wearresistant, and comparable to hard-faced weld overlays. Compatibility between coating and substrate metallurgy is important.
Material
Self-fluxing alloys melt at low temperatures and fuse with the substrate, usually based on nickel, chromium, and boron.
Thickness
Typically applied up to 1 mm thick, but with precautions, coatings up to 2 mm can be achieved.
Application
Applicable on all ferrous metals, weldable steels, and some non-ferrous parts. Besides reclaiming worn parts, it can coat new components to improve wear, abrasion, heat, or corrosion resistance. It allows use of cheaper base metals overlaid with special alloy coatings, reducing costs.
Spray & Fusee Spray Setup
