Patented PTA-PHE Technology（中文页面稍后推出）

Saint-Gobain Coating Solutions designs and manufactures plasma transfer arc (PTA) welding equipment for hardfacing applications. In fact, our PTA-PHE technology leads the industry in providing a highly cost-effective automated system that protects against abrasion, corrosion, oxidation, friction and thermal wearing.

PHE stands for plasma high efficiency. This technology produces very thin coatings – from 0.4 – 2 mm (0.02 – 0.08”) with high deposit efficiency and deposit speed, as well as low dilution rates. These features combine to save time and money while imparting hard, corrosion resistant single-layer coatings that extend the service life of components in demanding applications.

Compared to other welding processes -- including electrode, TIG & GMAW -- Saint-Gobain’s PTA-PHE system imparts:

• Low dilution  =
  • Reaching the hardness of the deposited material in a single layer
  • Better corrosion resistance
• Low heat affected zone (HAZ)
• Finer dendritic structure =
  • Higher abrasion resistance
  • Higher hardness
• Deposit close to the final geometry =
  • Reduction of the machining time
• High deposit efficiency (>95%)