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How should I be charging my furnace and what charge material should I use?
All material being charged into the furnace must be completely dry and care should be taken so that the charge continues to feed into the furnace properly. If the charge hangs up due to interlocking or bridging, the metal below can superheat and erode the refractory, causing molten metal to penetrate to the coil. Automated charging systems should be used whenever possible because they significantly enhance safety by permitting furnaces to be charged remotely, keeping the foundry worker at a distance or behind protective barriers. Charge materials such as enclosed containers, propane tanks, gas cylinders, shock absorbers, aerosol cans, sheared tubing or pipe, and similar materials must never be charged into a furnace.
What is the difference between a coreless furnace and a channel furnace?
In a coreless furnace, the entire bath functions as the induction heating area. A copper coil encircles a layer of refractory material and a powerful electric current travels through the coils creating a magnetic field that penetrates the refractory and quickly melts the metal charge material inside the furnace. In a channel furnace, induction heating takes place in the “channel,” a relatively small and narrow area at the bottom of the bath. The channel passes through a laminated steel core and around the coil assembly. The electric circuit is completed when the channel is filled with molten metal. Hotter metal leaving the channel circulates upward, raising the temperature of the entire bath. Foundries typically use channel furnaces to hold and dispense molten metal whenever it is needed.
I noticed that you have a wide variety of furnaces. What are the differences and how do I know which one is right for me?
We manufacture a variety of coreless induction furnaces (i.e., Heavy Steel Shell Furnaces, Small Steel Shell Furnaces, Dura-Line Furnaces, Rollover Furnaces and Mini-Melt Furnaces) as well as Crucible-type furnaces (i.e., Acutrak Furnaces, Lift-Swing Furnaces and Push-Out Furnaces) so that, regardless of the size or application of your molten metal needs, we can customize a system for you. From small capacity, precision casting operations to the largest induction melting foundry, we have the right furnace for you.