China cast iron scrap smelting induction furnace price

Product Description

Features of aluminum shell induction furnace:
Aluminum shell furnace is a simple structure with a service life of 5-8 years. There is no magnetizer,
lining ejection mechanism and refractory mortar layer. Generally the capacity is below 2 ton. Aluminum
shell furnace is suitable for small tonnage smelting customers.
Medium frequency coreless induction melting furnace working principle
No core is provided in the coreless induction furnace. A crucible of more convenient shape can be employed.
In this case, also the charge to be melted is made the secondary of the transformer. The primary is wound over the crucible itself. The eddy currents produced in the charge not only heat it up but also account for the stirring action. It is the basic coreless induction furnace principle.
Iron laminations are provided outside the primary winding to create a low reluctance path for flux and also contain the stray field which may otherwise induce the heavy current in supporting steel structure.
The frequency employed depends upon the size of the coreless induction furnace. For lower capacities of furnaces higher frequency of the order of 3000Hz are employed whereas for higher capacities frequencies are down to 600Hz. To reduce copper losses, hollow copper tubes are used in which cold water is circulated.
The operating power factor of such furnaces is very low (between 0.1 and 0.3). Therefore, static capacitors are used to improve the power factor of the installation.
Since the power factor does not remain constant during the operation of the furnace, the capacitance in the circuit during heat cycle is varied to maintain power factor approximately unity.
The coreless induction furnace is chiefly used for melting of steel and other ferrous metals. The capacities available vary from 250kg to about 20 tons. The initial cost is more as compared to arc furnace.
Power supply cabinet Technology
The main control board technology adopted is the leading control technology in China. It is developed with
The company and has independent intellectual property rights. It is not sold abroad.
A touch screen display system is uniformly equipped to measure the power consumption of the equipment,
display the water temperature protection and monitor the alarm in real time.
The copper bar and copper tube in the power cabinet are made of well-known brands in China. The copper
bar is sandblasted and passivated, and the manufacturing specifications are standardized. The components
of the power cabinet are reasonably arranged, the wiring and wiring specifications are easy to maintain. They
are designed and equipped with fast fuses to effectively protect medium frequency power supplies and
transformers. The technical parameters of all eqiupment are not less than 1.3 times of the rated power to
improve the reliability of the equipment.
Medium frequency power supply selection reference
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