Wisconsin Oven Corp., East Troy, Wis., has shipped a natural gas-fired draw batch oven to Flame Treating Systems Inc. in Durham, N.C., for tempering various steel parts. Flame Treating provides customized flame hardening systems to customers, and also provides in-house flame hardening services. The addition of this tempering oven allows the company to efficiently temper parts in-house.
The tempering oven has a maximum temperature of 1250°F and basket dimensions of 4x3x4 feet. Steel parts are loaded into the draw batch oven in the basket on two stainless steel pier rails with the load capacity of 2000 pounds gross. The recirculation system features a combination air flow arrangement that utilizes a 7000 CFM @ 10 HP plug-mounted blower. The combination airflow arrangement provides both horizontal and vertical upward airflow, which maximizes heating rates and temperature uniformity of the product.
“We are starting to do a significant amount of flame hardening for customers in our shop now,” says Mark Sirrine, President of Flame Treating Systems Inc. , “so we needed a better solution than sending parts out for tempering. We installed the oven in the warehouse room adjacent to our 2000-lb. capacity spin flame hardening machine. Five days later it was in production, tempering batches of 800-pound sprockets. That pretty much tells you what you need to know about the ease of installation. We’re looking forward to continuing to expand our services in the mid-Atlantic region for both localized hardening and tempering.”
