Induction heating furnace sales

induction furnace for heating billets

Figure 2.9 shows the principle of an induction furnace for heating billets. An induction coil, to which an alternating current is fed, surrounds the billet to be heated.

This induction coil is usually water-cooled and has a refractory lining. In practice, the induction coil is generally much longer than a billet, which is supported on water-cooled slide rails and pushed through a horizontal induction coil.

The billet can be pushed into the charging end of the induction coil by a hydraulic or pneumatic push rod. A clamping mechanism or friction mechanism can also be used to allow the billet to be fed continuously. There is little advantage in filling the induction coil with billets in this way. The most expensive and least electrically efficient method of moving billets is to use a stepping mechanism. When the diameter of the steel bar reaches 38 mm or more, the billet can be fed continuously.

At the discharge end, a discharge roller is usually installed, which is particularly important for continuous feeding induction heating furnaces to prevent the head of the billet from being gradually cooled. An induction coil is only suitable for workpieces within a certain diameter range.

When the diameter of the workpiece is relatively reduced, the heating efficiency will suffer some loss. When the heated workpiece needs to be changed, the induction coil can be easily replaced by using a flexible electrical connection mechanism and a quick water pipe joint.