How hot does the induction coil get?
Answer: "The induction coil is cool to the touch; the heat that builds up in the coil is constantly cooled with circulating water."
Can you use induction heating to braze steel parts in a nitrogen atmosphere?
Answer: "Yes you can, but the nitrogen has to be clean and have a low dew point."
Can diamond bits be brazed with induction heating?
Answer: "Sure, in fact induction heating is preferable for diamonds bits because it works so quickly. The longer the diamond remains at heating temperature, the faster it degrades. We recommend atmospheric brazing in a vacuum atmosphere for the best results."
How do I a braze alloy?
Answer: "Weve put together a Brazing Alloy Selection Guide to help you choose the best option. It depends on the composition of your part, how and where it will be used, and the joint strength required. Another helpful service we provide for our customers is to put them in touch with an experienced braze alloy supplier."
Weve been running these old vacuum furnaces for years. How can we set up a leaner operation?
Answer: "The best thing you can do is unplug those old furnaces and invest in a quick, clean vacuum induction system. Our new compact induction vacuum furnace will fit right into your manufacturing cell."
When is it better to use the indirect heat of an induction furnace instead of direct induction heat?
Answer: "Yeah, we get that question a lot. It depends on the geometry of your part and how you want to heat it. If you have a part with simple geometry and your process calls for heating a specific area of the part, direct induction heating will generally be preferable. However, if you need to heat the entire part, or if the part has a complex shape, then youll achieve better results with an induction heating vacuum furnace."
Will induction heating increase my utility bills?
Answer: "Not likely. Induction heating is a very effective, efficient means of heating. Most of our customers who are switching to induction for the first time see their utility bills go down." EXAMPLE
What are typical utility requirements for induction?
Answer: "Of course it depends on the system, but a typical typical system requires 440, 3-phase VAC at 60 Hz and 30 Amps. Also figure on 80 PSI compressed air and 40 PSI water at 4 gallons per minute for cooling."
Can you braze glass or ceramics with induction?
Answer: "If you work with glass or ceramics, a compact vacuum furnace is a great solution for brazing. Youll get quick, clean heat with very precise temperature control."
Can induction be used to nickel braze in nitrogen?
Answer: "Yes, with a vacuum system. Weve had some success in with foil preforms, but weve had no luck with nickel paste because the binder in the paste doesn flow. So we suggest using a high vacuum system because it will work faster than oven heating and there is no time for nitrides to form." VACUUM SYSTEM
I am using an induction system to heat a graphite object under a nitrogen atmosphere with pressure of about 100 microns. I am seeing a glow around the coil. This does not seem normal, and the current draw seems high. Can you explain why this is happening?
Answer: "100 micron is right in the middle of the range where the dielectric strength goes to zero, so you are operating at the worst possible pressure / vacuum. Heres a chart to help you out.
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