Plasma gun SG-100
12-21-2006, 09:23 PM,
Plasma gun SG-100

Any body used plasma torch SG-100 by Praxair (or Thermach) with "Mach I" nozzle?
Tell me please what gases nead for this equipment and theirs flow rate.Sign0009
I was try work with Ar and H2, and I can't take "Mach I" - only subsonic flame Mad0228

12-27-2006, 01:57 PM,
RE: Plasma gun SG-100
I use Ar & He but it should work with your gases as well.

As for the flows, what are you spraying and can you supply me with the exact hardware you are using?

12-27-2006, 06:23 PM,
RE: Plasma gun SG-100
Hi Steph

Sign0016 to the Surface Engineering Forum and thank you for your contribution.

Hi Panf

Not to knowledgable on the SG-100, but generally Ar/He is used for the higher velocity spraying.
12-28-2006, 08:26 AM,
RE: Plasma gun SG-100
Hi Steph
I have GTV console MF-P-1000 with power supply 1000A/100V
Anode 2083-155, Cathode 1083-112, gas injector 1083-113
and I want to spray Cr2O3.
to my knowledge, voltage on gun must be 30...40V (correct my, if I wrong), but I have 60V with 50LPM Argon only.
Why it's may be?
01-02-2007, 01:53 PM,
RE: Plasma gun SG-100
The Praxair's Technical data asked to use the parameter to spray Cr2o3 as below:
Anode:2083-720, Cathode:1083A-720, Gas injector 1083-113.
Ar: 87 SCFH, H2:2-3 SCFH, A:450, V:39-41.

If you still want to use the "Mach 1", try He as second gas,please.

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