The Process of Wire Flame Spray gun is essentially the spraying of molten metal* onto a surface to provide a coating. The material in the wire form is melted in a flame (oxy-acetylene flame most usual) and atomized using compressed air to form a fine spray. When the spray contacts the prepared component of substrate material, the fine molten droplets quickly solidify forming a coating. This flame spray process brought out correctly is called a "cold process" (relative to the substrate material being coated) as the substrate temperature can be kept low during processing avoiding damage, metallurgical changes, & distortion to the substrate component.
This flame spray process has been extensively utilized in the past and today for machine element work & anti-corrosion coatings.
Process Advantages:
- Low capital investment
- Simple to operate
- Wire form cheaper than powder in wire flame spray gun
- Deposit efficiency very high
- Likely best for applying pure molybdenum coatings for wear resistance.
- Portable system
- Preheating facility built-in, unlike arc spraying
- Likely to use the system in areas without electricity supply
Common Materials Sprayed:
- Zinc & for anti-corrosion cathodic coatings on steel
- Nickel/aluminum composite wire for bond coats & self-bonding coatings
- Molybdenum for bond coats
- Molybdenum for hard bearing applications, and excellent resistance to adhesive wear, used on piston rings, synchromesh cones & journals.
- High Chromium steel for many applications requiring hard & wear-resistant coating
- Bronzes, babbitt for bearing applications
- Stainless steels, nickel, & Molybdenum for anti-corrosion and wear
- Aluminum, nickel/aluminum for heat & oxidation resistance
Shot Blaster is a leading manufacturer of Wire flame spray gun, thermal spray gun, metalizing gun, arc spray gun, Sand Blasting machine, shot blasting machine, grit blasting machine, dust collector, abrasive media, sand blasting cabinet in India at a low price for sale.
