What is induction furnace?
An induction furnace is an electrical furnace in which the heat is applied by induction heating of metal. Induction furnace capacities range from less than one kilogram to one hundred tons, and are used to melt iron and steel, copper, aluminum, and precious metals.
Where is induction furnace used?
Induction furnace for metal of melting – is the most demand industrial equipment in the metallurgical industry. Such furnaces are ideal for melting ferrous, non-ferrous and precious metals.
What is frequency in induction furnace?
Induction heating equipment uses 50 Hz or other frequencies. Low frequency (20 Hz) induction heating crucible furnaces are normally used for larger applications where the power is more. Furnaces with middle frequency are used for small applications.
Who invented induction furnace?
Michael Faraday
History. The basic principle involved in induction heating was discovered by Michael Faraday as early as 1831. Faraday’s work involved the use of a switched DC supply provided by a battery and two windings of copper wire wrapped around an iron core.
What is the temperature of the induction heater?
Induction heating finds applications in processes where temperatures are as low as 100ºC (212°F) and as high as 3000°C (5432°F). It is also used in short heating processes lasting for less than half a second and in heating processes that extend over several months.
What is induction hardening?
Induction hardening is a process used for the surface hardening of steel and other alloy components. The parts to be heat treated are placed inside a copper coil and then heated above their transformation temperature by applying an alternating current to the coil.
What is induction heating used for?
Induction heating is used both domestic and commercial cooking, in several applications such as heat treating, soldering, preheating for welding, melting, shrink fitting in industry, sealing, brazing, curing, and in research and development.
What is induction hardening PDF?
However, induction hardening is a complex. technology where some of parameters, e.g. coil, specimen diameter, input current, frequency, heating. time and temperature determine the hardness depth and hardness number [1].