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plasma electrode material

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perry22
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plasma electrode material

Post by perry22 » Mon Jul 27, 2015 10:06 am

I want to know about electrode material. plzz help!!

jimcolt
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Re: plasma electrode material

Post by jimcolt » Mon Jul 27, 2015 12:35 pm

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 » Mon Aug 10, 2015 9:55 pm

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 » Fri Aug 14, 2015 3:37 pm

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

Doc Hollywood
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Re: plasma electrode material

Post by Doc Hollywood » Sat Aug 15, 2015 3:10 pm

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 » Sat Aug 15, 2015 5:02 pm

i never knew it was used for reactor control rods!

jimcolt
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Re: plasma electrode material

Post by jimcolt » Tue Aug 25, 2015 9:07 pm

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 » Tue Aug 25, 2015 10:03 pm

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

Post by Doc Hollywood » Wed Sep 16, 2015 7:00 am

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

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