Flame Spraying

Definition - What does Flame Spraying mean?

Flame spraying is a coating process using heat. A flame produces heat which is used to melt the thermal spray material, normally in powder, wire or ceramic rod form. The molten particles are then propelled on to the surface to be sprayed, compressed air is used on the wire flame spray so that the molten particles are atomized and then propelled onto the substrate. When using the powder flame spray, the metal or ceramic powder particles are softened by the flame, then this softened powder is sprayed onto the surface to be coated by the use of the flame gases through the nozzle.

Corrosionpedia explains Flame Spraying

Flame spraying is one of the two commonly used thermal spraying methods used to apply metallic or ceramic coating onto equipment used in environments which are less demanding or where high-quality coating is not a must.

Flame spraying technology is relatively cost effective and used to apply a wide range of ceramic and metallic coatings onto numerous equipment component materials which are required to have excellent impact and wear resistance. Flame spraying is also used to prevent corrosion on components and structures, and can also be used to reclaim shafts that are worn out, particularly on the bearing areas with stainless steel or bronze alloys.

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