Infrared Ovens for Preheating Bolsters

Although the process of extrusion will generate considerable heat, the bolsters should be preheated before being placed in service.

Preheating will minimize thermal shock and also increase the toughness of the steel, which is higher at press operating temperatures.

In most applications, preheating the bolster will improve the performance of the extrusion die, maintaining the correct thermal gradients during extrusion operations.

Novatec IR ovens are specially designed to uniformly preheat several bolsters at the same time.