Carbon-arc torch on inverter welder

[iant]

I've just found my old carbo-arc torch that I used to use for bronze welding/brazing on my old transformer stick welder. I've now got an R-Tech Tig/MMA inverter set - is it safe to use the carbon-arc torch on the new kit ?

 

[mike 109444]

You may find that the output being DC that one of the carbon rods burns a lot quicker than the outher (well I did!).
Oh and welcometo the forum

 

[Memmeddu]

As said above
And welcome aboard

 

[badabec]

Where are you buying the carbon rods?

 

[Ace Paul]

Where are you buying the carbon rods?

DOnt quote me on this. 6volt lantern batteries have two carbon rods in them.

Kind you find in lights on skips and certain traffic cones

See you tube vid guy using them to melt something

 

[premmington]

Abit off topic...

But I have used a TIG torch loads of times to spot heat nuts and bolts up to extract them.

Works a treat....

 

[mike 109444]

Where are you buying the carbon rods?

Think you will find MM still do them maybe.

 

[Dragnet]

Much better on AC, or you need a thicker carbon on one side to counter the uneven erosion (old fashioned theatre carbon arc lamp carbons were like this). Higher voltage than arc welding too. My Pickhill has a low side for welding and a high terminal for twin carbon arc brazing, which is something like 50-80VAC. You could try DC carbon resistance welding with a single carbon, as with the original patent for the 'electro-hephaestus'.

It is unclear whether the original rods are a different composition to currently available carbon gouging rods. I haven't tried any, but I haven't found anyone who supplies new rods specifically advertised as for twin carbon arc brazing, except for NOS on eBid or eBay.

 

[mike 109444]

On a side note ref Carbon arc gouging, John of "Farmcraft101" YT channel did a view/review of the process and what was aviable (in usa)