Intermediate frequency furnace is a kind of will power frequency 50 hz alternating current into intermediate frequency (
More than 300 hz - 1000 hz)
Power supply device, the three-phase alternating current (ac) power frequency, after rectification into direct current, then laid adjustable intermediate frequency electric current, direct current supply by capacitance and induction coil in through the intermediate frequency alternating current, generate high density magnetic field lines in the induction coil, induction coil, and cutting in cheng fang of metal materials, produce a lot of eddy current in the metal materials.
Medium frequency induction furnace,
Hereinafter referred to as the intermediate frequency furnace
The working frequency of between 50 ~ 10 Hz, widely used in non-ferrous metal and black metal smelting.
Compared with other casting equipment, intermediate frequency induction furnace has a high thermal efficiency, short smelting time, alloying elements, burning less, wide melting materials, low pollution to the environment, and can accurately control the temperature of the liquid metal and composition, etc.
Working principle of the intermediate frequency furnace & emsp;
Intermediate frequency furnace is mainly composed of induction coil, induction coil, power supply, and made of refractory material in the crucible.
Within the crucible containing metal furnace charge, equal to each winding transformer, induction coil, when on ac power, to produce alternating magnetic field in the induction coil, the magnetic force line in the crucible furnace charge, metal is produced in the furnace charge induction electromotive force, due to burden itself form a closed loop, this is only one turn and the characteristics of each winding is closed.
So in charge at the same time produce induced current, induced current through the furnace charge, the charge for heat to melt.
When the conductor surrounded by a ring of the magnetic flux changes, in the loop will generate induced potential, similarly, the conductors in the alternating magnetic field, the electromagnetic induction effect also induced potential, form the induced current in a conductor (
, induced current to overcome the resistance of the conductor itself and joule heat generation, heat with the heat conductor itself, make its heating, melting, achieve the goal of all kinds of hot working, this is the principle of intermediate frequency induction heating.
Intermediate frequency electric furnace
medium frequency magnetic field was established based on intermediate frequency power supply, make the induced eddy current and heat is generated in ferromagnetic materials to achieve the purpose of heating materials.
Intermediate frequency electric furnace adopts 200 -
2500 hz medium frequency induction heating power supply, heat insulation, intermediate frequency electric furnace is mainly used for smelting carbon steel, alloy steel, special steel, also can be used for copper, aluminum and other non-ferrous metal smelting and the temperature.
Equipment is small in size, light weight, high efficiency, less consumption, melting heat up fast, furnace temperature control, high production efficiency.
Intermediate frequency electric furnace more occasions application (
Standard parts heating forging (
All kinds of metal materials melting,
The motor rotor heating with (
Steel pipe end heating expansion pipe (
Mould diathermy (
Axial intermediate frequency quenching (
Weld preheat or tempering after welding etc.
cast iron melting furnace steel melting furnace processes have been widely used to produce induction electric melting furnace such as aluminium shell iron scrap melting furnace, induction heating furnace with automatic feeder, and induction melting machine etc.
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