High-temperature furnaces must withstand high temperatures that melt materials, such as titanium, without damage. Usually made of graphite, these furnaces frequently cause contamination with reactive carbon, which can cause damage to the manufactured products. Fully metallic furnaces and heating elements made of suitable materials, on the other hand, are a clean solution.
Andritz received an order from China’s HBIS Group Co. Ltd. to supply two strip processing furnaces. One furnace is for a continuous annealing line and will be used to produce the latest generation of advanced high-strength steels (AHSS). The annual capacity of the line is 825,000 tons. The second furnace is for a continuous hot-galvanizing line to produce hot-rolled products up to 6 mm thick. The annual capacity of the line is 412,000 tons. Production of the first coil on these two lines is scheduled for the first quarter of 2020.
SECO/WARWICK will supply a multipurpose sealed quench-chamber furnace to Kuznia Sulkowicie SA, a Polish manufacturer of matrix forgings, construction connectors and manual tools. The furnace is designed for heat treatment (such as gas carbonitriding and pure hardening) in a controlled endothermic atmosphere. The fully automated operation of the furnace is its unique advantage. Personnel are only required to load and unload the work after treatment. The cycle and product transfer is completely automated.
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.
Ebner received an order from Northeast Light Alloy Co. Ltd. of Harbin, China, for a continuous floater furnace facility to harden and temper aluminum alloy strip. The heat-treatment facility fulfills all requirements for achieving aerospace-grade material, including optimum strip shape and surface characteristics, high-temperature uniformity throughout the heating and soaking phases, and appropriately high cooling gradients. The floater furnace, which will start operation at the end of 2019, is designed for a maximum strip width of 2,400 mm (94.5 inches) and strip thicknesses of 0.5-4.0 mm.
International technology group Andritz received an order from thyssenkrupp Steel Europe to supply a hot-dip galvanizing line for the company’s plant in Dortmund, Germany. The new line, which has an annual capacity of 530,000 tons, is designed to produce high-strength steel grades mainly for the automotive industry. Andritz will supply the complete line, including the furnace and mechanical and electrical equipment. Start-up is scheduled for the end of 2020.
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).
The March 2019 issue of Industrial Heating includes an editorial piece on the most viewed heat and corrosion resistant materials articles. Other features include "The Intersection of 3D Printing and Machine Learning", "Generating Hydrogen for Thermal Processing and Coatings", and much more.