Reheat / Slab Heat

Aluminium slabs are heated in a reheat furnace to ensure a homogenous temperature prior to rolling. Accurate temperature measurements at the furnace exit help to monitor each slab, supporting consistent product quality throughout the process.

The reheat furnace typically heats the slab above rolling temperature to ensure the properties of the aluminium are the same throughout the slab. It is then allowed to cool to the rolling temperature, requiring measurements to ensure it is at the correct heat before rolling.

Checking the quality of the aluminium before it enters the rolling mill means scrap product is reduced. Temperature measurement also benefits process control systems, providing data that can be used to optimise furnace temperature and the time required for correct heating. This reduces costs through added energy efficiency.

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