Patented CARBOJET® gas injection technology that can improve the productivity of heat treatment furnaces without the use of circulation fans will be introduced by Linde for the first time at Heat Treat 2015, booth #248.
The gas mixing technology is ideal for upgrading a variety of furnaces including roller hearth, pusher, rotary-retort and pit furnaces. Ultra-high-speed injection of a gas or gas mixture through special CARBOJET lances improves gas and atmosphere flows and circulation. This includes both the better mixing of the injected gases with the furnace atmosphere, and better movement of gas flows within the furnace.
“CARBOJET® technology has already proven successful in many heat treatment operations in Europe because rapid gas injection and homogenous mixing are hallmarks of process efficiency and product quality,” stated Grzegorz Moroz, program manager, heat treatment and atmospheres, Linde.
Specific advantages will depend on the type of heat treatment furnace. In continuous furnaces, for example, CARBOJET gas-injection technology offers a variety of benefits including: improved carbon transfer and homogenisation, more intensive heat transfer with improved convection, better residue burn off at front of furnace, reduced soot formation, better cooling zone performance and quicker conditioning when switching atmospheres.
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