Re: [TCML] sucker gap material

[Yurtle Turtle <yurtle_t@xxxxxxxxx>]

I wasn't endorsing it as a suitable material; rather I was saying that is wasn't dangerous in welding, as I've seen tons of the stuff welded at work, and none of the welders ever wore respirators. However, Bert says it is hazardous, so I defer to his expertise.

--- On Wed, 3/17/10, jimlux <jimlux@xxxxxxxxxxxxx> wrote:

> From: jimlux <jimlux@xxxxxxxxxxxxx>
> Subject: Re: [TCML] sucker gap material
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Wednesday, March 17, 2010, 11:27 AM
> Yurtle Turtle wrote:
> > More telling than machining is welding. While
> machining metal can get it hot, welding is more like what it
> will experience in a spark gap. 316L SS can be welded with
> no problems from fumes.
> > 
> > Adam
> > 
> 
> 
> the issue with SS isn't it's melting point or stuff like
> that.. It's the terrible thermal conductivity.  SS
> spark gap electrodes greatly suffer from the "hot spot"
> problem.. a small area gets hot and then all the sparks tend
> to start there (because of thermionic emission) making it
> even hotter.
> 
> Copper conducts the heat away from the cathode spot, so the
> sparks tend to move around on the electrode surface, and be
> more consistent.
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