Plasma thermal spraying

Plasma thermal spraying is a technology for strengthening and modifying the surface of materials, which can make the substrate surface have the properties of wear resistance, corrosion resistance, high temperature oxidation resistance, electrical insulation, heat insulation, radiation protection, friction reduction and sealing.

Plasma thermal spraying technology uses a plasma arc driven by direct current as a heat source to heat ceramics, alloys, metals and other materials to a molten or semi-molten state, and sprays them at high speed onto the pre-treated workpiece surface to form a firmly attached surface layer.

Plasma thermal spraying is a thermal spray process that produces high quality coatings through a combination of high temperature, high energy heat source, relatively inert spray media (usually argon) and high particle velocity.

Plasma spraying technology can be used to spray almost any metal or ceramic onto a variety of materials with excellent bond strength while minimizing deformation of the substrate.

As an expert in plasma spray technology, Hongzhi Machinery offers a range of thermal spray coating materials to meet your specific needs. Our customer-oriented facilities can process components of various sizes to strict standards and provide reliable, repeatable results.

Benefits
The great advantage of plasma spray technology is its ability to spray a wide range of materials from metals to refractory ceramics on small and large components, with the following features:

  • Corrosion protection
  • Wear resistance
  • Gap Control – Abrasives and Wear Resistant Materials
  • Heat resistant and anti-oxidation
  • Temperature Management
  • Resistivity and conductivity

Applications and Materials
Due to its versatility and excellent properties, the plasma spray process is chosen by many technicians as the process that offers the widest range of coating material options.

Fretting wear, tungsten carbide/cobalt seal ring groove spraying – gas turbines;
high temperature protection, thermal barrier coatings – tbcs to gas turbine combustion hardware;
wear resistance, printing roller spraying chromium oxide ceramic, which can be laser engraved;
wear protection, spraying molybdenum alloys onto industrial diesel engine piston rings; and
Corrosion/wear resistance, corrosion protection – downhole tools – oil and gas products.
Carbides, metals, ceramics, abrasives.