SECO/WARWICK will supply an electric mesh-belt furnace to bolt manufacturer Solvera Gawel Technology S.A. The line is designed mainly for carbonitriding and hardening processes and for washing and tempering of high-quality screws and other hardware manufactured near Rzeszów, Poland. The process line, which will be delivered in 2022, will be adapted for operating with endothermic atmosphere supplied from an external endothermic generator. It will consist of a loading module equipped with a weighing system, a main furnace, oil bath (for hardening the workpieces), and vibration and reloading tables. After the hardening process, the workpieces are transferred to a drum washer where they are washed, rinsed and dried.
Can-Eng Furnaces International Ltd. has been awarded two contracts from a producer of high-volume specialty automotive fasteners. Can-Eng will supply two mesh-belt heat-treatment systems, which will include: computerized vibratory loading system, rotary phosphate removal washer, mesh-belt hardening furnace, oil-quench system, post-quench wash system, mesh-belt temper furnace and part containerization system. The fully integrated systems feature Can-Eng’s PET (process enhancement technology) system, which provides the client with complete product traceability through the thermal process, process data collection, historical event archiving, process variable trend monitoring and scheduling optimization.
SECO/WARWICK will deliver two vacuum furnaces to Flansch-Tech, a specialist in aluminum and steel forging, in Budapest. According to SECO/WARWICK, one of the vacuum furnaces will be the largest in Hungary. The Vector with horizontal charge loading is equipped with a 15-bar nitrogen cooling gas-pressure system and a production work area of 900 mm wide x 900 mm high x 1,200 mm long). It will be used for the heat treatment of tool steels – mostly dedicated to hardening and tempering – and will allow Flansch-Tech to process larger parts.
L&L Special Furnace Co. Inc. shipped a dual-chamber heat-treating and temper furnace, along with an oil-quench tank, to an eastern European ammunition manufacturer. The equipment will play a supportive role in keeping key production equipment online along with thermal processing of munitions projectiles. The furnace has two chambers: the top chamber is rated to 2350°F and is used for heat treating various steels and other nonferrous materials; the bottom chamber is rated for 1250°F and includes a recirculation fan and baffle for tempering, stress relief or preheating.
Lindberg/MPH shipped two gas-fired hardening and tempering furnaces to the manufacturing industry. The large-capacity box furnaces will be used for the normalizing, austenitizing and tempering of forged components. The furnaces can accept a maximum load measuring 6 feet wide x 6 feet deep x 6 feet high, and the actual chamber is larger to provide clearance for parts. The outer-shell sidewalls and floor are constructed from 3/16-inch steel plate. The lining is ceramic-fiber modules that store low amounts of heat and have superior insulating qualities to provide maximum fuel efficiency.
TMK’s Seversky Pipe Plant awarded SMS group the final acceptance certificate for a heat-treatment line for tubes and pipes at its Polevskoy site in Russia. The line has an annual capacity of up to 300,000 tons of pipes with diameters between 168 and 370 mm (6.6 and 14.5 inches), a wall thickness of up to 40 mm (1.5 inches) and lengths of up to 13.5 meters (44.3 feet). The line is able to process small batch sizes and different product groups in a cost-efficient manner.
Dongkuk Industries Co. Ltd., the largest manufacturer of cold-rolled medium-carbon and high-carbon steel strip in South Korea, placed an order with Ebner for a hardening and tempering line. According to Dongkuk Industries, it will be the first facility of its kind in East Asia. Ebner’s scope of supply includes an austenitizing furnace, a HICON/H2Q hydrogen quenching system, a FlexFlat martensite cooler with SmartFlat automatic flatness supervision system, a leveling furnace and an atmosphere jet cooler. A combined bainite/pearlite transformation zone will also be supplied. Medium- and high-carbon steel strip will be hardened and tempered in the facility starting in the summer of 2021.
Gasbarre Thermal Processing Systems shipped a custom-built atmosphere tempering furnace to a manufacturer in the aerospace market with captive heat-treating capabilities. With a work-load size of 84 inches wide x 42 inches deep x and 60 inches tall, coupled with a maximum load weight of 6,000 pounds, the furnace is specifically designed for the company’s manufactured components. The electrically heated furnace has an operating temperature range of 350-1600°F and passes uniformity at +/-10°F per AMS 2750E. The system is equipped with Eurotherm temperature-controlling instrumentation and an Allen-Bradley PLC and HMI.
Tempering occurs by heating the steel to below its critical temperature in order to transform the metastable body-centered tetragonal martensite structure that is formed during quenching into a more stable structure of fine carbide particles.