Induction heating systems for heat treatment of metal bars and billets

ATE – Applicazioni Termo Elettroniche designs and manufactures induction heating systems for heat treatment of bars and billets for forging, hot rolling, and in-line processes on steel and aluminum alloys. Induction heating enables precise control of energy input and temperature, reducing oxidation, scale formation, decarburization, and grain growth.

Induction heating systems for bars and billets for forging

ATE systems for the forging industry ensure fast and uniform heating through compact and highly automated solutions designed to support high production rates. The systems cover aluminum alloy billets with cross-sections up to 1,532 mm², reaching temperatures up to 560 °C and hourly production rates up to 3,000 kg.

Intermediate induction heating in rolling mills (steel)

In steel hot rolling, uniform temperature distribution at the rolling mill entry is critical to final product properties. During transfer of billets from continuous casting or reheating furnaces, thermal losses occur, resulting in temperature variations. ATE induction heating units, installed upstream of the rolling mill, equalize temperature across radial, transverse, and longitudinal sections, improving overall process stability.

Induction heating for subsequent hot rolling of steel and aluminum bars

Induction heating prior to hot rolling is increasingly used in small in-line rolling mills for steel and aluminum bars and wires. ATE systems can heat aluminum alloy products to approximately 550–600 °C and steel bars and wires to nominal outlet temperatures of up to 1,000 °C. Typical sizes include bars up to about 33 mm and wires up to 22.5 mm, with high productivity in compact installation spaces.

Quenching and tempering of flat bars

ATE develops in-line quenching and tempering systems for flat bars, for example for components used in industrial handling applications. The systems allow continuous preheating of flat profiles made of boron-alloyed steels, with widths up to 406 mm and thicknesses up to 41 mm. The material is heated from ambient temperature to surface temperatures of up to 500 °C prior to gas furnace quenching, or alternatively above 950 °C for full induction heat treatment without additional heating systems.

For technical data and process-specific customized solutions, please contact the ATE team directly.