This article was originally published on September 1, 2015.

Featured at Heat Treat 2015 (booth 248),  patented CARBOJET® gas-injection technology can improve the productivity of heat-treatment processes in continuous or batch-type furnaces, including roller hearth, walking beam, pusher, pit and rotary-retort. Ultrahigh-speed injection of a gas or gas mixture through special CARBOJET lances improves gas and atmosphere flows and homogeneity without the use of circulation fans. This provides an immediate improvement in process efficiency that can reduce cycle time and improve product quality. For continuous furnaces benefits include: reduced soot formation, more intensive heat transfer, improved carbon transfer and cooling rates. For pit furnaces benefits include: more uniform heating for more uniform carburizing, annealing, nitriding, etc. For rotary-retort furnaces benefits include: better atmosphere mixing and control, increased throughput and longer retort life.