1. Main furnace types

Reheating furnaces can be divided into two groups of unequal importance:

• batch furnaces to handle very heavy products, and small batches of different quality or dimensions. These furnaces enable :

  • to receive a wide variety of dimensions on their sole;

  • adapt appropriate heating cycles to each load.

  The three main types of batch furnaces are :

  • pits ;

  • dormant ;

  • with movable hearth ;

• for economical heating of very large runs of identical products, requiring the same thermal cycle.

  The continuous furnaces used in the steel...