Induction Furnace/Research Development: Difference between revisions
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=Research= | =Research= | ||
A good place to start is to understand what's involved in melting and sand casting | A good place to start is to understand what's involved in melting and sand casting metal with a simpler charcoal furnance. | ||
I recommend reading Gingery's book '''The Charcoal Foundry'''. | I recommend reading Gingery's book '''The Charcoal Foundry'''. | ||
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[[Image:elements_of_induction_heating_parse.jpg|Elements of Induction Heating]] | [[Image:elements_of_induction_heating_parse.jpg|Elements of Induction Heating]] | ||
Typically the material to be melted is a solid rod, a pipe/'sleeve', or a sheet. Using these shapes makes it feasible to calculate heat transfer. | |||
I expect an initial prototype open source induction furnace should prioritize solid rods, since this volume could approximate powders and aggregate scrap. | |||
One key consideration is the power supply selection. | |||
The furnace also needs a water cooling system, especially for steel melting. | |||
The method of electromagnetic induction is similar to the function of transformers, and in fact a transformer is one component of an induction furnace, used for tuning tank circuit to frequency in the case of fixed frequency power source. | |||
==Design== | ==Design== | ||
Latest revision as of 20:53, 14 November 2025
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Overview
Research in creating the Induction Furnace with the goal of creating a design that fully complies with OSE Spec.
Research
A good place to start is to understand what's involved in melting and sand casting metal with a simpler charcoal furnance.
I recommend reading Gingery's book The Charcoal Foundry.
Typically the material to be melted is a solid rod, a pipe/'sleeve', or a sheet. Using these shapes makes it feasible to calculate heat transfer. I expect an initial prototype open source induction furnace should prioritize solid rods, since this volume could approximate powders and aggregate scrap. One key consideration is the power supply selection. The furnace also needs a water cooling system, especially for steel melting. The method of electromagnetic induction is similar to the function of transformers, and in fact a transformer is one component of an induction furnace, used for tuning tank circuit to frequency in the case of fixed frequency power source.
Design
- IGBT-based induction furnace power supply - [1]
- Category: Induction Furnace
- Induction Furnace Forum
- Induction Furnace Request for Bids
- Open Pario
Resources
- Articlesfactory: Furnace Selection
- Inductionheater.org
- Dansworkshop: Induction Heating
- Educypedia: Induction-related Articles
- Appropedia: Induction Heating
- [2] Home made induction heater
- Allaboutcircuits: Articles on Electricity and Electronics
- 1974 US Patent 3798344 Channel Type Induction Furnace (Many induction furnace patents are more than 20 years old, and therefore public domain.)
- Foundry Magazine trade rag
- Foundry Practice vendor house rag
- Furnace rebuilder
- Jim Metcalf memoir Fascinating memoir of a person deeply involved with induction heating development
- Ajax 50kW induction heater rebuild project
DIY Furnaces
- Appears to be about 10-20kW - 2021 - [3]
- Simple circuit melts a nail - [4]
- Power Labs - [5]
- http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat1.html
- 10 kW heater + inverter circuit - [6]
- http://www.richieburnett.co.uk/indheat.html
- http://www.hvguy.4hv.org/ih/
- http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat1.html
- Achieved 10 kW; Induction Furnace Kit: http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat8.html
- http://www.dansworkshop.com/electricity-and-electronics/induction-heating.htm
- Roy 1200 is an open source induction heater. Fluxeon sell a kit versions between $196.50 and $326.31 depending on whether all parts are included.
Commercial
- Across International - NJ, USA - induction heaters - [7]
- Ajax Magnethermic/Tocco [8]
- India supplier of induction furnaces - [9]
- Commercial induction furnace power supplies from Superior Induction - [10]
- EPRI works with induction - The EPRI Center for Materials Production at Carnegie Mellon, Pittsburgh, PA, 412-268-3243
- List of chinese induction furnace manufacturers
- 110kw 3.1kHz melts 110kg in 1hr. Video[11]
Forums
- Open Source Induction Furnace Forum
- CNC Zone - Induction furnace topic
- Metal Casting Zone - Furnace Info
- Metal and Metallurgy engineering Forum
- Electronics and electricity
- Electronics
Links
- Technical basics and applications of induction furnaces - excellent PDF - [12]
See Also
