It has a long service life (generally a normal service life of more than 10 years) and good stability, because the magnet guide has two functions: first, the magnet guide is firmly fixed with the top wire and the induction coil, so that the coil and the magnet guide are firmly fixed. form a solid structure. Second, the magnetic conductor can form a magnetic barrier around the coil.
Energy saving, because the furnace with magnetic conductor saves electricity by 3%-5% compared with the aluminum shell furnace;
The casting point is stable, and the hydraulic tilting furnace device can well control the casting angle and speed.
The safety performance is good. Due to the characteristics of the leakage furnace alarm device and the refractory mortar layer), the steel shell structure is selected for its good characteristics when the tonnage is greater than 2T.
The aluminum shell furnace is a simple structure, and its service life is generally about 5-8 years. There is no magnetic conductor, furnace lining ejection mechanism, and refractory cement layer. Its safety performance is poor, and it is generally used with a capacity below 2T. For example: a set of 5T intermediate frequency furnace, when the furnace is full of molten iron, the overall weight of the equipment reaches 8-10T. If the aluminum shell structure is selected, when the reducer rotates the furnace body to 95 degrees, the entire furnace body will tilt forward, and the safety performance is very good. Difference. The aluminum shell furnace is suitable for users who change production in a short time, with small tonnage.
The advantages and disadvantages of steel shell furnace and aluminum shell furnace are compared in detail below.
Advantages and disadvantages of aluminum shell furnace and steel shell furnace
1) Sturdy and durable, beautiful and elegant, especially the large-capacity furnace body requires a strong rigid structure. From the safety point of view of the tilting furnace, try to use the steel shell furnace.
2) The magnetic yoke made of silicon steel sheet shields and emits the magnetic field lines generated by the induction coil, reduces the magnetic flux leakage, improves the thermal efficiency, increases the output, and saves about 5%-8% of energy.
3) The existence of the furnace cover reduces the loss of heat and improves the safety of the equipment.
4) The service life is long, and the oxidation of aluminum at high temperature is relatively serious, resulting in fatigue of metal toughness. At the foundry site, it is often seen that the shell of the aluminum shell furnace that has been used for about a year is broken, while the steel shell furnace has less magnetic flux leakage, and the service life of the equipment is much longer than that of the aluminum shell furnace.
5) The safety performance of the steel shell furnace is much better than that of the aluminum shell furnace. When the aluminum shell furnace is smelting, due to high temperature and heavy pressure, the aluminum shell is easily deformed and the safety is poor. The steel shell furnace adopts hydraulic tilting furnace, which is safe and reliable.
According to industry habits, the supply smelting furnace of aluminum alloy structure with the reducer as the tilting furnace is commonly known as the aluminum shell furnace. The induction melting furnace of the steel structure with the hydraulic cylinder as the tilting furnace is commonly known as the steel shell furnace.
Post time: Aug-19-2022