Centrifugal Induction Furnace

The hearth furnace is named for its iron core passing through the induction coil. It is also called trough furnace because the heat source is a metal groove surrounded by it. The hearth furnace can be divided into two types: slotted type and closed type. The slotted type has been basically eliminated. The furnace has a series of advantages, such as fast heating speed, high electric and thermal efficiency, high power factor, less metal burning loss, low smelting cost, less equipment investment (1/2-1/3 of coreless furnace), easy operation, etc.



Induction smelting furnace:

The name of the melting furnace is relative to the central furnace. Its liquid metal is contained in a crucible, so it is also called crucible furnace. This type of furnace is mainly used for smelting and heat preservation of special steel, cast iron, non-ferrous metals and their alloys. Coreless furnace has many advantages, such as high melting temperature, less impurity pollution, homogeneous alloy composition and good working conditions. Compared with the hearth furnace, the heartless furnace is easier to start and change metal varieties, and more flexible to use, but its electric and thermal efficiency is much lower than that of the hearth furnace. The low surface temperature of coreless furnace is not conducive to the smelting of high temperature slagging process.

(1) High frequency smelting furnace

The capacity of high frequency furnace is generally less than 50 kg, which is suitable for smelting special steel and special alloy in laboratory and small-scale production.

(2) Medium frequency smelting furnace

Medium frequency smelting furnace has larger capacity and power than high frequency furnace. It is mainly used for smelting special steel, magnetic alloy and copper alloy. Because of the need for expensive frequency conversion equipment, this kind of furnace has been converted to power frequency heartless furnace in some large capacity occasions. However, compared with the industrial frequency furnace, the intermediate frequency furnace has its own unique features.

(3) Power frequency smelting furnace

The power frequency smelting furnace is the latest and fastest developing one among several kinds of smelting furnaces. It is mainly used in the melting of cast iron and steel, especially high strength cast iron and alloy cast iron, as well as in the heating up, heat preservation and composition adjustment of cast iron solution, and in the smelting of non-ferrous metals such as copper and aluminium and their alloys.

Vacuum Induction Furnace:

Vacuum induction melting furnace is used to melt heat-resistant alloy, magnetic alloy, electrical alloy and high strength steel. The characteristic of this furnace is that it is easy to control the furnace temperature, vacuum degree and smelting time in the smelting process.

