Solar Atmospheres of Western PA installed a 14-foot-long car-bottom air furnace that was surveyed in accordance with AMS2750 Rev E and is uniform within ±10°F (Class 2). With a work zone measuring 60 inches wide x 54 inches high x 168 inches long, the furnace will be capable of handling workloads up to 30,000 pounds. A maximum operating temperature of 1400°F allows the furnace to accommodate the tempering of large tool-steel components and the age-hardening processes of nickel-based alloys and precipitation-hardenable stainless steels.
SECO/VACUUM (SVT), a SECO/WARWICK company, sold a vacuum tempering furnace to a global manufacturer of cutting tools. The furnace, which will be used for tempering and stress relieving metal parts, is part of the company’s expansion and complements another vacuum tempering furnace commissioned earlier in 2019 at the facility. The horizontal, front-loading furnace has an all-metal hot zone for clean vacuum processing. It includes a convection fan and a pressurized gas quench for quick cooling.
L&L Special Furnace Co. Inc. shipped a dual-chamber heat-treating furnace to a southeastern U.S. manufacturer of various items used in the production of heavy equipment and transportation devices. The box furnace will be used to heat treat the tooling used to manufacture these items. Its top chamber, which has an effective work zone of 16 inches wide x 16 inches high x 32 inches deep, is used to harden tool steels. Its bottom chamber, which has an effective work zone of 14 inches wide x 14 inches high x 32 inches deep, is used for tempering, stress relief and preheating.
JGEF Furnace installed a series of gas nitriding and tempering furnaces at a commercial heat-treatment company specializing in mold and die steel heat treatment. The horizontal gas nitriding furnace can produce a hard, clean substrate onto which a duplex layer with high hardness values is deposited. The working size of the furnace is 35.5 inches wide x 35.5 inches high x 47 inches long. The charge support design is suitable for a 3,307-pound maximum load.
JGEF Furnace of China shipped six furnaces to a Japanese heat-treating company. Four horizontal, front-loading nitriding furnaces are designed specifically for precision gas nitriding in a retort style with vacuum purge. This gas nitriding method precisely controls the case depth and nitride layer formation (including white layer) to achieve high surface hardness, improved wear resistance and longer fatigue life.
Gasbarre Furnace Group/J.L. Becker shipped a large-capacity gas-fired temper furnace to a specialty alloy manufacturer located in the northeast U.S. The furnace is designed to temper workloads after hardening. It is capable of processing workloads 32 feet wide x 6 feet long x 4 feet high that weigh up to 40,000 pounds. Temperature uniformity is achieved through five zones of heating, recirculation fans and a custom-designed baffling system. As a result, the furnace is capable of achieving ±10°F from 800°F to 1400°F.
Solar Atmospheres of Western PA commissioned a 20-foot-long car-bottom air furnace with a total load capacity of up to 30,000 pounds. The Class 2 furnace, built by Heat Treat Equipment Inc. of Canton, Mich., was installed and fully tested in Hermitage, Pa. The 60-inch-square x 240-inch hot zone passed the AMS 2750E temperature uniformity survey of +/- 10°F from temperatures of 300-1450°F. The furnace passed the survey on the first attempt and was put into production immediately.
Lucifer Furnaces delivered a large dual-chamber unit – a hardening furnace over a tempering oven – to a metal stamping manufacturer in the Midwest. The upper hardening chamber heats to 2300°F with 6.5 inches of multilayer insulation throughout the chamber. Heat is supplied through heavy-gauge, coil-wound wire elements in holders on the sides, back and door of the furnace. The lower-chamber tempering oven heats to a uniform 1200°F with a rear-mounted fan circulating air past the side-mounted heating elements.
JGEF Furnace of China manufactured and installed a protective-atmosphere horizontal tempering furnace for a tool-steel manufacturer in Sweden. The furnace will help the company achieve a pre-vacuum protective atmosphere for tempering, and the atmosphere in the furnace chamber will reduce the oxidative decarburization reaction of the heat- treated workpiece. The work zone measures approximately 60 inches wide x 60 inches high x 79 inches long. The furnace has a load capacity of 15,430 pounds (7,000 kg) and an operating temperature range of 392-1292°F (200-700°C).
Check out the December 2019 issue of Industrial Heating, featuring "Metal Additive Manufacturing without Melting", "Furnaces with Tungsten Heating Elements Make High Product Quality Possible", and much more.