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Electric arc

Electric arc spraying is a thermal spraying process for producing metallic and alloy coatings from materials in the form of wire.

The principles of electric arc spraying

Electric arc spraying is a fusion of a material by means of an electric arc maintained between two polarized wires. The resulting droplets are then propelled onto the part to be coated by a gaseous jet (compressed air or other specific gas).

The projection equipment used is a manual or automatic gun mounted on a robot or a rigid mechanized system.

It is the most economical among all the thermal spraying techniques for metals and their alloys with high deposition rates.

  • Arc voltages between 25 and 40 V
  • Intensities ranging from 100 to 500 A
  • Particle speed: ±150m/s
  • Arc temperature: 4000°C/6000°C
  • High deposit speed: 8-20kg/h

The advantages of electric arc spraying

  • Particularly useful for overlays
  • Suitable for applying thick coatings on large surfaces
  • Portable technology for on-site application

Possible features

Icône résistance chimique

Corrosion/oxidation resistance

Icône frottement

Resistance to fretting

Icône esthétique

Resistance to impact erosion

Icône résistance à l'usure

Resistance to wear and abrasion

Icône conduction isolation électrique

Electrical conductor