The diversity of coating was the result of various spraying coating materials, controlled process parameters and coating method. There are a hundred kinds of praying powder materials, the the same material can have different coating if we change spraying method and process parameters. 

Coating category, it can be divided into 10 series according to their composition:

Iron, nickel and cobalt based coating

Self fluxing alloy coating

The non-ferrous metal coating

Oxide ceramic coating

Tungsten carbide coating

Chromium carbide and other carbides coating

Refractory metal coating

The plastic based coating

Metal ceramic coating

There are high temperature oxidation, wear and corrosion problems in the metallurgical industry production, all these problems will cause parts surface failure. Using thermal spraying technology can obtain satisfactory results in many cases. And of course, it can not solve all the corrosion problem of that, so wear resistant steel plate produced by open arc welding plays important role in this process.