Posted by Frank Oedinghofen (217.194.34.125) on 14:59:07 11/04/05
In Reply to:Changing the polarity of plasma gun posted by Leo Antony
: Hi all,
:
: I would like to know, what will happen if i change the polarity of plasma gun. I have copper anode and tungsten cathode.
Dear Leo,
Don't try it, unless you have enough money to buy a new gun.
You will change the in and outlet from the water cooling.
Normally your Anode is cooled with cold water (inlet).So when you change this you can imagine what will happen. The anode is made of copper, and will melt immediately.
If you want to change polarity, you will need a transfer (welding equipment will do also)arc power supply. This will change the polarity of the subject you want to coat.
Greetings Frank
Follow Ups:
Please go to the new Surface Engineering Forum as this old message board is a read only archive. Please copy and paste relevant information or link to this page if you wish to reactivate this thread on the new forum.