1. The steel shell induction melting furnace is durable and beautiful, especially for large-capacity furnaces (generally more than 1.5-2 tons recommended steel shell induction melting furnace body) requires a strong rigid structure, considering the safety of the tilting furnace Steel shell induction melting furnace should be used as much as possible.
2. The unique yoke of the steel shell induction melting furnace shields and emits the magnetic lines generated by the induction coil, reduces the magnetic leakage, improves the thermal efficiency, increases the output, and saves energy by 5%-8%.
3. The presence of the steel shell induction melting furnace lid reduces heat loss and increases the safety of the equipment.
4. The steel shell induction melting furnace has a long service life, and the aluminum shell is oxidized at a high temperature, which causes the metal toughness to be fatigued. At the foundry enterprise site, it is often seen that the aluminum shell induction melting furnace shell used for one year or so is broken, and the steel shell induction melting furnace has much less leakage current, and the service life of the equipment greatly exceeds the aluminum shell induction melting furnace.
5. The safety performance of the steel shell induction melting furnace is much better than that of the aluminum shell induction melting furnace. The aluminum shell induction melting furnace is easily deformed due to high temperature and heavy pressure during smelting, and the safety is poor. The steel shell induction melting furnace uses a hydraulic tilting furnace, which is safe and reliable.
6. Steel shell induction melting furnace. Energy-saving and efficient, low operating cost: electric furnace thermal efficiency is not less than 80%, 3-5% higher than general equipment; ton iron consumption is more than 30 degrees than general equipment, that is, energy saving per furnace More than 90 degrees;
7. High power factor and low harmonic pollution: for example, with large capacitance over-compensation measures, the power factor can reach 0.98 at full power operation; for example, the rectifier transformer adopts a phase-shifting structure (the primary side of the transformer is staggered by an electrical angle of 30°) To minimize the impact and pollution of higher harmonics on the grid;
8. The steel shell induction melting furnace has good technology and excellent material quality, which improves the service life of the equipment: for example, the yoke is made by the Japanese imported cold-rolled Z11 oriented silicon steel sheet to minimize the magnetic loss and improve the electromagnetic coupling efficiency; the wall thickness is 4mm. The T2 copper tube is made of an inductor, and each of the crucibles is wrapped with an insulating cloth and insulated by integral dipping and drying, thereby avoiding the occasional ignition and greatly improving the service life of the coil;
9. The steel shell induction melting furnace has reliable protection and low equipment failure rate: for example, a complete multi-stage protection system (water pressure, phase loss, under voltage, over current, over voltage, off time, straight through, operation interlock, etc.) ); adopts sweeping type of excitation and zero voltage starting technology, which enables the operator to achieve 100% successful start without selecting the starting voltage and starting frequency; refer to the United States (ABB, pillar, Ajax) company, Japan Fuji Electric, etc. Advanced control technology, self-developed inverter control circuit, non-faulty automatic restart function and power automatic adjustment function, and greatly improve the anti-interference ability of the control loop;
10. The steel shell induction melting furnace is easy to operate and easy to maintain: for example, the starting and output power only needs to rotate a potentiometer to realize the “fool” operation; the PLC control system makes the intermediate frequency power supply have the operation interlock function, avoiding the mistake. Operation of damaged equipment, in the production process, there is no need to perform special operations on the power state and other operations except power.
Summary: Steel shell induction melting furnace is more practical than aluminum shell induction melting furnace.
