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Further investment at THT
11 Sep 2008
Tamworth Heat Treatment Ltd (THT) has recently acquired two new furnaces. The most recent is a dual-based plasma nitriding furnace from Rubig of Austria. The environmentally-friendly and energy-efficient unit uses three-zone heating of the work chamber, controlled via the Windows-based process control system.
The equipment has two bases and the retort automatically transfers to the second base at the end of the cycle and starts the pre-programmed process. There is an integral video camera for viewing the load during processing. The use of a duo system minimises downtime between processes, thereby improving productivity. The furnace can process items up to 1.2m long, including stainless steels, general engineering steels and low-alloy steels.
The second furnace, a vacuum tempering unit from TAV in Italy, has specially-designed heating elements and a graphite hot zone that allow temperature control of ±5°C from 350 up to 750°C in vacuum, partial pressure of nitrogen or convection heating using nitrogen. The control system is by Eurotherm with a Siemens PLC. Items up to 1m in length and 600kg in weight can be accommodated.
THT says that it has always made regular investments in new equipment. These latest furnaces allow the company to further its services to motorsport, oilfield, aerospace and other demanding niche markets.
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