Ovens boost production capacity
September 1st 2006

Two high specification Carbolite ovens have been installed by specialist sealing solution provider Greene, Tweed and Co to increase the capacity and consistency of the raw material sintering operation at its UK manufacturing facility.

The new ovens join two others that have been in the factory for more than 10 years. They have a maximum capacity of 1.73m3 and can operate to 425C. Temperature uniformity is guaranteed to be better than 5C and is typically 3C.

The tube and bar being processed stand on rotating tables, ensuring that heat is applied evenly to all the materials. The tables, which are perforated to improve air circulation throughout the chamber, rotate about once every two minutes.

Heating is provided by Incoloy-sheathed, mineralinsulated rod elements sited behind side duct sheets, with air being circulated by heavy duty fan impellers on either side of the chambers.

A typical sintering programme takes up to 20h, with time and temperature controlled by a digital programmer supplemented by an overtemperature cut-off.

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