plasma electrode material

Information on plasma cutting nozzles, electrodes, and other consumables.
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perry22
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plasma electrode material

Post by perry22 »

I want to know about electrode material. plzz help!!
jimcolt
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Re: plasma electrode material

Post by jimcolt »

The body of the electrode is copper, if the electrode is for use with air or oxygen...the emitter is hafnium. If the electrode is for use with non-oxidizing gases then the emitter must be tungsten. The thermal bond between the emitter and body is critical. Dimensional accuracy is critical.

Jim Colt Hypertherm
Doc Hollywood
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Re: plasma electrode material

Post by Doc Hollywood »

Is it true there is only 10 years worth of hefnium left on earth? If so, are all us plasma guys going to have to switch gasses?
davek0974
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Re: plasma electrode material

Post by davek0974 »

Doc Hollywood wrote:Is it true there is only 10 years worth of hefnium left on earth?
http://www.kitco.com/ind/Albrecht/2015- ... Piles.html

Seems so
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Re: plasma electrode material

Post by Doc Hollywood »

time to start saving for a water jet!
(Perhaps thats why hypertherm is in the water jet business now! ;-)
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Re: plasma electrode material

Post by davek0974 »

i never knew it was used for reactor control rods!
jimcolt
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Re: plasma electrode material

Post by jimcolt »

I think we should switch to fullnium, lasts twice as long as hafnium....
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rdj357
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Re: plasma electrode material

Post by rdj357 »

jimcolt wrote:I think we should switch to fullnium, lasts twice as long as hafnium....
:lol: :lol: :lol:
Doc Hollywood
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Re: plasma electrode material

Post by Doc Hollywood »

Dang it jim, I had coffee in my mouth when I read that! :mrgreen:
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