furnace for gw methods

If anyone was looking for a simple method of constructing a furnace, here is what seems to be an easy way from a garbage can for a mold. not to shabby

http://store32.net/chaudywogbaaga/index.php/a/2009/03/03/making_a_new_metal_melting_furnace_and_a

Nice, indeeed!
But I can't figure how can that wire protect or reinforce the lid.
In some place can't find pearlite but, anyway, considering the little weight of all the stuff I think that can be used only refractory cement.
What you think about it?

About furnaces. Anybody know something about Blaise De Vigenere's path ?
I'm reading his book and I see that he explains some processes concerning furnaces, and some hints are the same in the J. French book, that was edited some year after the english version of De Vigenere's book.
There are some remarkable pages concerning the waterwarks too.
Somebody says that the quick path of De Vigenere it's something like a subfusion to find out the "fixed grain", I "quite remember:scratch:" some words from Canseliet...
Let's say a "champagne-connection" .

Zosimo

You need to be very careful with what cement you use, because the wrong kind can explode when overheated.

yeah, you need to use refractory cement.

Ah, now I see, the chiken wire is the structure that keeps together the refractory cement under the lid.
For what concerns the danger: you think bros. that the refractory cement it's enough or it's better to mix some pearlite with it?

Zosimo

Zosimo

It may be worth the extra cost to just buy a furnace. Try http://www.foundry101.com/search.htm
the smaller ones cost is about $380.00 US and it works great.
The price includes, Furnace, burner and shipping...at least State side. Hope this helps you in your decision.

Kevin,

how long does your furnace from www.foundry101.com take to melt gold?

www.abprospecting.com claim that their's melt gold in 15 min from a cold start.

Frank

Thank you Bros, you're so kind.
Of course the danger it's not only in the cement but in the lid too if you don't open another hole somewhere. And, more than this, it's in my wallet , it's so nervous: quite carnivorous.

I've already bought the refractory cement, I'll drill a steel kitchen pot and... I'll show you the pics.

Ah, wait! My wallet is saying that I've still to pay the ironsmith.
I'll go on shoting on the crucibles with the buthane gun for a while.

Zosimo

Frank wrote:

Kevin,

how long does your furnace from www.foundry101.com take to melt gold?

www.abprospecting.com claim that their's melt gold in 15 min from a cold start.

Frank

I'd say that's pretty close. It really does heat up very fast!