Supporting > Casting
Arc furnace failure.
airmodel:
Here is a video about an arc furnace which shows that just because the arc flame has a very high temperature it will be successful in melting high melting point metals. The problem with this furnace is it needs lots and lots of kilowatts and having a electricty supply to have lots of kilowatts is not available in your home. This applies to any kind of furnace that uses electricity to melt metals. An oxy acetylene torch has a very high temperature flame and has the same problem it will not melt a kilogram of steel.
My oil burning furnace can melt 14kg of cast iron in 50-55 minutes but the amount of kilowatts the oil produces is about 70-80 kilowatts, any less than that it will take a lot more time to melt. At the end of the video he says that an induction furnace will solve his problems but there is another problem to solve, does he make the power supply for the induction furnace or buys one? Watch from 12:38 to 17:06
http://www.youtube.com/watch?v=WW6ty2aeZ-k
vtsteam:
The melted products are all highly contaminated. The amounts melted are very small. The costs of equipment and ruined crucibles are high. Chromium fumes are poisonous. The photos of burns from the prior referenced experiment are horrific.
It is hard to understand why someone would do these things.
AVTUR:
--- Quote from: vtsteam on January 19, 2026, 01:27:46 AM ---The melted products are all highly contaminated. The amounts melted are very small. The costs of equipment and ruined crucibles are high. Chromium fumes are poisonous. The photos of burns from the prior referenced experiment are horrific.
It is hard to understand why someone would do these things.
--- End quote ---
I think that is pretty safe. Research chemists just under 200 years ago died working with HF and nitrating solutions in ordinary laboratories. At least heat prevents you getting too close to molten metals.
AVTUR
bent:
A local foundry uses an arc furnace to produce ductile iron castings on a Disamatic jolt-squeeze machine. We're talking several tons of iron at a time (8-10 tons per hour). The sturm und drang from the arc is awesome, even at the 100 ft. distance behind protective glass where we stood to watch. They have to call the electric company to coordinate the furnace runs with them.
https://www.romac.com/foundry
internal_fire:
--- Quote from: bent on January 19, 2026, 08:02:44 PM ---A local foundry uses an arc furnace to produce ductile iron castings
--- End quote ---
I believe Romac uses an induction furnace, not an arc furnace.
Big difference.
Gene
Navigation
[0] Message Index
[#] Next page
Go to full version