FEATURE ADVANCED MATERIALS & PROCESSES | SEPTEMBER 2023 44 7 system can be programmed to operate continuously by queuing recipes for uninterrupted furnace operation. The furnace loading system, in coordination with the SCADA system, automates the movement of hardware between different units along the furnace line (Fig. 2). The automated loader picks up loads from the loading station and transports them to the desired locations within the line. The control system of the vertical vacuum IQ furnace line incorporates internal communication and diagnostic capabilities. It can identify and diagnose disturbances or anomalies during operations, facilitating prompt troubleshooting and resolution. The SCADA system provides hierarchical user access privileges, allowing controlled access to specific functionalities within the system. This ensures proper authorization and security in managing the furnace line operations. The control system of the furnace line can integrate with a temperature data collection system, enabling seamless data acquisition and analysis. This integration contributes to process monitoring, quality control, and optimization of cycles. The SCADA allows operation at a remote desktop location. The “lights-out” automation promotes higher production with less human error. CONCLUSION The development of the vertical vacuum IQ furnace line has expanded the operational use of traditional IQ vacuum furnaces with a larger working zone. The integration of automation systems enables flexible operation modes and enhanced control over the heat treatment processes as well as a reduction in labor for processing hardware. Although not currently utilized by Rex Heat Treat, the furnace line has the capability for low-pressure carburization, offering the potential for future applications in low-pressure carburizing processes. ~HTPro For more information: Zoe J. Rex, Business Development, Rex Heat Treat, 951 West 8th St., Lansdale, PA 19446, 215.855.1131, zoe.rex@rexht.com, rexht.com. VISIT US AT THE HEAT TREAT SHOW – BOOTH 1928
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