RE: Inert gas shrouded plasma spray
Hi MartyMc
There are many approaches in order to create a shrouded inert gas on Thermal spray application, the first is LPPS which has a chamber filled with an inert gas (nitrogen or Argon), and the gun and part inside, FST.nl produce this kind of system, but it is very expensive, the second application of APS with a shrouded inert gas protection is by an annular gas get with radial holes applied on the gun, in order to create a gas protective shroud with a nitrogen consumption of about 700 l/minute between the gun and the piece being sprayed, airproducts.com did some of this particular systems, no one of the OEM systems manufacturer, did a gun with a shrouded gas jet, you must do it yourself, maybe projected by a pneumatic system engineer.
Best regards
Luigi
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