Revision as of 02:07, 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]

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 *Nichrome wire melts at 1400C
 *Kanthal wire melts at 1500C - good for steel melting? [https://en.wikipedia.org/wiki/Kanthal_(alloy)]
+*20kW, 150lb aluminum furnace - [https://www.dykast.com/products/electric-150-lbs-alunimun-capacity-kiln/16222]
 =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]
 *$300 for 1.5 kW small electric - [https://www.alibaba.com/product-detail/Industrial-Scrap-Steel-Metal-Melting-Furnace_60686033145.html?src=sem_ggl&mark=google_shopping&src=sem_ggl&mark=shopping&cmpgn=1678575544&adgrp=64891157946&locintrst=&locphyscl=9023282&ntwrk=g&device=c&dvcmdl=&position=1o2&pla_adtype=pla&pla_mrctid=130760471&pla_channel=online&pla_prdid=60686033145&pla_country=US&pla_lang=en&pla_group=293946777986&pla_localcode=&gclid=EAIaIQobChMIlKOOm_C84QIVxsDACh3L1AQrEAQYAiABEgKdqPD_BwE#shopping-ads]