FAQ´s
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APS – Atmospheric Plasma Spraying

thick coatings

THERMAL PROJECTION

The process basically relies on the introduction of the raw material in particulate form within the plasma jet , in order to accelerate them and fuse .

The process is based on the formation of plasmogen means , from the dissociation and ionization of the gas by a high-power electric arc (about 80KW ) between a cathode and an anode tubular . The gas flow rate generated is high, in the order of 1000 m / s , since the exit of the torch, the gas tending to return to its normal energy state ( lowest energy ) again forming an associated highly exothermic reaction .
CERAMIC MATERIALS:

Al2O3; TiO2; Al2O3/TiO2; Cr2O3; Cr2O3/TiO2; Cr2O3/SiO; ZrO2/CaO; ZrO2/MgO; ZrO/YO/CeO; ZrO2/Y2O3.

  • Raw material Form : powder .
  • Typical flow of raw material : 2.5 to 3.5 kg / h.
  • Gas typical speed : 1,000 m / s .
  • Typical particle velocity : 200 m / s.
  • Power Source: plasma state .
  • Temperature of the power source 10 000-20 000 ° C.
  • Typical adhesion voltages : 20-50 MPa.
  • Typical porosity : 4 to 8 %.
  • Typical coating thickness : 200-1000 microns
OBJECTIVES

Adapt and improve surfaces for applications that will be submitted , providing characteristics:

  • Resistance to wear (abrasion , erosion and friction) ;
  • Resistance to corrosion and oxidation ;
  • Conductivity or electrical insulation, thermal or magnetic ; optical ;
  • Biocompatibility.

CUSTOMER BENEFITS
  • Increased longevity of the components;
  • Cost reduction ;
  • Reduced downtime / maintenance ;
  • Increased overall productivity ;
  • Better product quality .

 

 

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