Induction smelting technique is used in cast-iron production

Induction smelting technique is used in cast-iron production

At present, most used in cast iron production, the most common induction melting furnace with power frequency induction furnace and intermediate frequency induction furnace, the characteristics of various induction melting furnace as shown in table
The composition of iron liquid is small. But power frequency induction furnace melting speed is slow, go against slagging, start to start block cold furnace, the production is not flexible, so the power frequency induction furnace is commonly used in heating and the remelting of the metal. In addition, the power factor of the working frequency induction furnace is low, and it is necessary to allocate a large amount of compensation capacitor to increase the production cost.
The intermediate frequency induction furnace is efficient and high thermal efficiency, short smelting time, easy to realize process automation and production flexibility. The medium frequency induction furnace is suitable for smelting cast iron, especially suitable for smelting vermicular cast iron, nodular cast iron and alloy cast iron. It is also more adaptable to the furnace material, and the variety and block degree of the burden can vary widely.
Although the advantages of medium frequency induction furnace is more, fast development, but the power frequency induction furnace in iron liquid storage, heat preservation, adjust the alloy composition and superheat temperature, etc., is still a good equipment, especially for blast furnace, cupola melting furnace duplex furnace is still widely used.
With the continuous development and application of induction melting furnace in industrial production, cast-iron production has entered a new stage. Although power frequency induction melting furnace some deficiencies, but it in metal heating and heat preservation, as well as the adjustment of iron liquid component has a unique advantage, especially as with other furnace duplex stove is still widely used. Medium frequency induction melting furnace for melting cast iron, vermicular cast iron, nodular cast iron and alloy cast iron are particularly, shows the superiority of, make its in recent years in the present widely used in the production of cast iron new trend.