Pouring induction furnace for ferrous and non ferrous

Depending on the alloy, casting temperatures range from 300 to 1,700°C.

These temperature levels, the risks involved in handling liquid metal, and the constant need to increase casting speeds in molds, have always prompted foundrymen and equipment manufacturers to find innovative solutions that promote safety and productivity.

The concept of automatic casting includes the creation of a reserve of metal with the desired grade, temperature maintenance and automatic pouring into molds. The first installations appeared in the 70's. The most common processes are Vöhr, Metzger, Fomet, Junker, ABP (ex ABB), Inductotherm, Ajax... Some molding processes are more adapted than others to this type of casting, such as Disamatic vertical casting lines.

Today, automatic casting is compatible with almost all molding sites, whether flat or vertical, whatever the output (over 400 molds/hour). This type of furnace is mainly cylindrical in shape, with a pressure-resistant cover. The filling and pouring siphons open into the bottom of the vessel, ensuring a slag-free pour. Temperature is generally maintained electrically, mainly by means of a channel inductor.

Today, most large foundries have automated casting lines. Productivity, quality and working conditions are the main criteria justifying these investments.

After a detailed presentation of the main casting devices, the article looks specifically at the technical and practical aspects of using these furnaces.