What is core type induction furnace?
Core Type Induction Furnace It is essentially a transformer with the charge of metal to be heated as single turn short-circuited secondary and magnetically coupled to the primary winding by the iron core. The current flowing through the charge is very high may be of the order of several thousand amperes.
What are different types of induction furnaces?
There are two main types of induction furnace: coreless and channel. as well as many non-ferrous alloys. The furnace is ideal for remelting and alloying because of the high degree of control over temperature and chemistry while the induction current provides good circulation of the melt.
What are the advantages of core less induction furnace?
Advantages of Coreless Induction Furnace Low operating cost, an automatic stirring action produced by eddy currents, low erection lost, absence of dirt, smoke noise, etc.
How does induction furnace work?
In an induction furnace, the metal charge material is melted or heated by current generated by an electromagnetic field. The amount of stirring is determined by the size of the furnace, the power put into the metal, the frequency of the electromagnetic field and the type/amount of metal in the furnace.
What is induction heating and types?
Induction heating takes place in an electrically conducting object (not necessarily magnetic steel) when the object is placed in a varying magnetic field. Induction heating is due to the hysteresis and eddy-current losses. Hysteresis losses only occur in magnetic materials such as steel, nickel, and very few others.
What is the principle of induction heater?
Induction heater units incorporate high frequency generators for non-contact heating of metal using electromagnetic induction. When AC is applied to a coil surrounding the work (metal), a magnetic field is generated by the current flowing in the coil, and induced loss (hysteresis loss) is generated causing a heat.
What are the two types of induction furnace?
There are two main types of induction furnace: coreless and channel.
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.
What is core type furnace?
Core type furnace is essentially a transformer with the charge of metal to be heated as single turn short circuited secondary and magnetically coupled to the primary winding by iron core. The current flowing through the charge is very high may be of the order of several thousand amperes.
What is the unit of induction?
Induction is measured in unit of Henries (H).
Where is induction furnace used?
These furnaces are used in steel and iron mills, but can also be used for nonferrous metals. Medium-frequency graphite crucible induction furnaces are typically used to cast precious metals. The crucible and the inductor can also be placed in a vacuum chamber for custom casting applications.
What are the uses of induction furnace?
What are the different types of induction furnaces?
Core type induction furnace is a low-frequency furnace and it includes three options, which are direct core, indirect core, and vertical core induction furnace. Direct Core Induction Furnace: This is a type of low-frequency induction furnace used to melt metals and it comprises a magnetic core, a primary winding, and a crucible.
How does an indirect core induction furnace work?
Indirect Core Induction Furnace: Primarily relies on the principle of induction heating, this furnace has an iron core that connects with the primary and secondary winding. Connected to the AC is the primary winding which induces currents in the metal container attached to the secondary winding.
What can be made in a coreless induction furnace?
Flexible cables are used for platform mounting while knife contacts are employed for floor level mounting. The coreless induction furnace is commonly used for the production of carbon-free ferrous alloys including alloy steels, carbon steels, stainless steels among others.
What kind of furnace has a magnetic core?
Direct Core Induction Furnace: This is a type of low-frequency induction furnace used to melt metals and it comprises a magnetic core, a primary winding, and a crucible. It looks much similar to a regular transformer but generally has a high-density flow of current.