Open Source Induction Furnace Project: Difference between revisions

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==Introduction==
#redirect [[Induction Furnace]]
 
This project involves the design of:
* a high frequency, high-power induction furnace circuit (between 20 and 50 kW), and
* the melting chamber proper.
 
Well, we could buy a turnkey system perhaps for $5k total used, and run it from the LifeTrac generator. The only disadvantage to this route is that if it breaks we’re dead-in-the-water – either with the impossibility of fixing closed-source technology, or a high repair bill. A single component which blows and is inaccessible for fixing could in principle turn a working power supply into worthless junk. Thus, it is worthwhile to tame this technology by open-sourcing the design.
 
==Goals==
The furnace should have the following characteristics:
 
#Induction furnace or any other technology that can do this within a budget of 20 kW of electric input, with minimal pollution
#Suitable for melting all metals and alloying
#300 lb per hour steel melting furnace for casting
#240 v ac, 20 kW power source available
 
 
==Details==
The complete design should include all of the following:
 
===Induction Furnace Circuit===
# Scalable from 20 up to 50 kW in units of 1 or 5 kW
# Allows for power and frequency selection
# Power source may be either 1 or 3 phase electrical power
 
===Heat Dissipation System===
Specifications of a cooling or heat dissipation system.
 
===Coil===
# Modular, adaptable design specifications for primary coil windings
 
===Melt Chamber===
# Geometical design of melt chamber and basic power transfer calculations
# Should include provisions for loading and pouring.
 
===Other Considerations===
# Complete bill of materials
# Fabrication files for circuit and other components
# Sourcing information for components
# System design and process flow drawings
 
==Notes==
===Power Supply===
*50 kW for $1600 - [http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200415768835&rvr_id=&crlp=1_263602_263622&UA=L*F%3F&GUID=1357ab741250a0265337bec7ff94d6a7&itemid=200415768835&ff4=263602_263622]
*20 kw STC 3 phase 120 - 480V, also 1 phase - generator - $692 -[http://cgi.ebay.com/20kw-STC-3-Phase-277-480-12-Wire-generator-Head-altern_W0QQitemZ160369799644QQcmdZViewItemQQptZBI_Generators?hash=item2556c8f1dc]
*50 kw STC 3 phase- $1300 - [http://cgi.ebay.com/50KW-STC-3-Phase-12-Wire-generator-alternator_W0QQitemZ160357088416QQcmdZViewItemQQptZBI_Generators?hash=item255606fca0]
**LifeTrac 55 hp can produce 38 kW with this head
 
===Melt Calculations===
[[Image:inductioncalc.jpg]]
 
==See Also==
* Original blog post: http://openfarmtech.org/weblog/?p=1373
* Furnace selection: http://www.articlesfactory.com/articles/hobbies/induction-furnace-and-cupola-furnace-information.html
* UFES: http://www.ufes.com/index.php?n=Foundry.FurnacesOvens
===DIY Furnaces===
*http://www.richieburnett.co.uk/indheat.html
*http://www.hvguy.4hv.org/ih/
*http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat1.html
* 1 kW Induction Furnace Kit: http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat8.html
*http://www.dansworkshop.com/electricity-and-electronics/induction-heating.htm
===Commercial===
*Commercial induction furnace power supplies from Superior Induction - [http://www.superiorinduction.com/?gclid=CO2fgNqPtZkCFRAhDQodqjeo5Q]
*EPRI works with induction - The EPRI Center for Materials Production at Carnegie Mellon, Pittsburgh, PA, 412-268-3243
 
 
If you think there are missing or incorrect details here, please help correct that.
 
 
[[Category:Induction Furnace]]
[[Category:Specifications]]
[[Category:Metalworks]]
[[Category:Fabrication]]

Latest revision as of 21:25, 11 September 2011

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