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Operating a vacuum heat treating furnace, c. 1959–1962. A vacuum furnace is a type of furnace in which the product in the furnace is surrounded by a vacuum during processing. The absence of air or other gases prevents oxidation, heat loss from the product through convection, and removes a source of contamination
Heat treating furnace at 1,800 °F (980 °C) Heat treating (or heat treatment) is a group of industrial, thermal and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. The most common application is metallurgical.
Ipsen's industrial furnaces - vacuum furnaces, atmosphere furnaces and pusher-type furnaces - are used for the following heat treatment processes: hardening, quenching, tempering, carburization, carbon nitriding, nitro carburization, bright tempering, annealing, vacuum brazing, temperature brazing, plasma nitriding
The inside of the oven is large enough to place the workpiece in a position to receive maximum exposure to the circulating heated air. For high volume process annealing, gas fired conveyor furnaces are often used. For large workpieces or high quantity parts, car-bottom furnaces are used so workers can easily move the parts in and out.
Edwin Fitch Northrup built the first prototype of a vacuum induction furnace in the United States of America in 1920. [citation needed] Medium frequency furnaces were seen soon afterwards in England and Sweden in 1927. [1] The process was initially developed to refine certain special metals such as cobalt and nickel. As these metals and alloys ...
Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. [1] The VAR process has revolutionized the specialty traditional metallurgical techniques industry, and has made possible tightly controlled materials used in biomedical ...
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