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Coatings are formed in supersonic thermal spray method

In this method coatings are formed from powder material which is heated and scorched to supersonic speed by hot flue gasses. These are top quality coatings made mainly of carbide materials (chromium carbide, tungsten carbide) in metallic matrixes based on NiCr and Co. They have very high adhesion to the substrate,

very high hardness (up to 1450 HV) and very low porosity (less than 1%). These features allow very high resistance to abrasive endurance and corrosion, even at high temperatures and in aggressive environments such as those found in fluidized bed boilers co-firing biomass and alternative fuels.

High adhesion to the substrate

Very high hardness (up to 1450 HV)

Very low porosity (under 1%)

Coatings manufactured by arc thermal spraying

The coating is formed from the material fed to the device in the form of wires between which an electrical gap glows. The melted material particles are sprayed onto a suitably prepared surface using a suitable gas mixture. This is an economical method of producing coatings, which makes it possible to cover large surfaces

in a relatively short time. Due to the wide variety of materials used, the coatings have advantageous properties that allow the production of coatings with high corrosion and erosion resistance. Coatings of this type often require additional finishing processes for boiler applications.

Thermal sprayed coatings with additional surface remelting

The coating is usually formed from powder materials which are additionally melted after flame spraying. The result is a coating that is “metallurgically
bonded with the substrate,

The result is a “metallurgically” bonded coating with the substrate, completely tight, with the assumed hardness and very high corrosion resistance. It may contain a large number of carbide phases, which significantly increase the resistance to abrasive wear.

Metalloceramic composite coatings

Coatings based on a suitably composed mixture of metallic and ceramic components forming a composite coating with satisfactory adhesion to a suitably prepared substrate.

This type of coating is characterised by high chemical and mechanical resistance at high temperatures (up to 1800 °C), limits the settling of combustion products on the protected surfaces and ensures an increase in the efficiency of heat conduction

High resistance to chemicals

High mechanical resistance

Resistance at high temp.
(up to 1800 °C)

Materials Used

We use materials of the highest quality, with the appropriate certificates.

Carbides

Pure metals and metal alloys

Seals