Revision as of 01:59, 7 April 2019

Advantages

Low cost - essentially the cost of a $10 kiln heating element, and balance for refractory material and steel for case and legs.

Connect 2 heating elements by threading around a threaded rod - 3:30
1.5 meters long works for 250V - 3:40
Resistance in his case - 33 Ohm when cold - 3:45
Fire Bricks - 5:20. Note CEBs work well as fire bricks per results from Hydronic Stove, and results would probably improve if we used perlite. This would be a good product.

Kiln Heating Element - $10 - [1]
Clay graphite crucible - 10kg for $40 - [2]
Make your own graphite crucibles - flake graphite - 25 cents/lb for ton quantities. Or 16 lb (1 gal) for $45 [3]

@@ Line 17: / Line 17: @@
 =DIY Clay Graphite Crucibles=
 *Article - flake graphite + silicon carbide + high fire clay - [https://www.ehow.com/how_7927117_make-clay-graphite-crucible.html]
+=Limits=
+*Nichrome wire melts at 1400C
+*Kanthal wire melts at 1500C - good for steel melting? [https://en.wikipedia.org/wiki/Kanthal_(alloy)]
 =Industry Standards=
 *$150 on Alibaba - [https://www.google.com/search?client=ubuntu&hs=LOy&ei=5D6pXJPBMsPujwSAv5jAAg&q=diy+electric+kiln+for+foundry&oq=diy+electric+kiln+for+foundry&gs_l=psy-ab.3...2272.5182..5386...0.0..0.121.703.3j4......0....1..gws-wiz.......33i22i29i30.OEW-vnEnOP4]