Results 181 to 190 of about 439 (213)
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Modeling Gas and Low Pressure Carburizing of Steel
Heat Treating Conference, 2013Abstract Industrial carburizing parameter optimization traditionally relies on time-consuming and expensive trial-and-error methods, yielding suboptimal results. To address this challenge, the Center for Heat Treating Excellence developed CarbTool, a sophisticated simulation program designed to calculate carbon concentration profiles ...
Xiaolan Wang +5 more
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Low-Pressure Carburizing of Powder Metal Components
Heat Treating Conference, 2017Abstract Transmission-manufacturers constantly need to adapt their products and manufacturing technologies to meet future’s market and legislation requirements such as cost-efficiency, running-smoothness and drivetrain-agility. Components made of powder metal (“PM-components”) are established in today’s transmission industry as a cost ...
Volker Heuer +5 more
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Copper Evaporation During Low Pressure Carburizing
Heat Treating Conference, 2017Abstract Low pressure carburizing (LPC) in a vacuum furnace is increasingly the preferred method of case hardening for aerospace gears, and acetylene is often one of the gases used in the process. Selective case hardening is common with gears, where certain sections of a part are “stopped off” or “masked” to prevent carburization at ...
Trevor Jones +2 more
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Low-pressure carburizing systems: A review of current technology
BHM Berg- und Hüttenmännische Monatshefte, 2006Although the great majority of carburizing is still carried out at atmospheric pressure, recent developments in vacuum furnaces and steel technology have meant that carburizing can now be carried out in a more environmentally friendly way under low pressure.
P. F. Stratton, S. Bruce, V. Cheetham
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Low Pressure Carburizing in a Vacuum Furnace
Heat Treating Conference, 2015Abstract Historically, this carburizing has been performed in an endothermic gas consisting of CO2, CH4, CO, etc, but carburizing in low pressure with the proper gas mixture changes the landscape. Using C2 H2, the process is no longer endothermic as C2H2 is a catalytically decomposable hydrocarbon and dissociates in the presence of an ...
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Low-pressure hollow cathode plasma source carburizing technique at low temperature
Surface and Coatings Technology, 2021Abstract A low-pressure hollow cathode plasma source carburizing was developed as a novel surface treatment technique based on the active screen plasma carburizing combined with hollow cathode sources. The cylindric cathodic cage with array holes was made of pure graphite, where the hollow cathode graphite tubes were inlaid on.
H.Y. Liu, H.L. Che, G.B. Li, M.K. Lei
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2013
AbstractLow-pressure carburizing (LPC) is one of the most popular case-hardening processes and is applied to increase the fatigue limit of dynamically loaded components. It takes place in a pressure range between 5 and 15 mbar (4 and 11 torr) and at temperature range between 870 and 1050 deg C.
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AbstractLow-pressure carburizing (LPC) is one of the most popular case-hardening processes and is applied to increase the fatigue limit of dynamically loaded components. It takes place in a pressure range between 5 and 15 mbar (4 and 11 torr) and at temperature range between 870 and 1050 deg C.
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Modeling methods for gas quenching, low-pressure carburizing and low-pressure nitriding
Engineering Structures, 2018Abstract Modern thermal and thermochemical treatment of steels is a rapidly growing research area. Thermochemical processes are researched, designed, optimized, and controlled by computer-aided methods. The goal of the present paper is to provide a comprehensive state-of-the-art review and to analyze the critical mass of knowledge in the field of ...
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Low Pressure Carburizing Process Design for High-Alloy Steels
AM&P Technical Articles, 2019Abstract In this article, the authors demonstrate the use of simulation software to optimize low-pressure carburizing (LPC) processes for high-alloy steels with strong carbide-forming elements.
Zhichao (Charlie) Li +2 more
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Predictions of Carbon Fluxes During a Low Pressure Carburizing Treatment
Heat Transfer: Volume 6 — Heat Transfer in Materials Processing, 2001Abstract This paper presents the qualitative assessment of a novel device developed for the regulation of carburizing processes in industrial vacuum furnaces. The proposed device involves a U-shaped thin wall iron tube: the outside surface of the tube is exposed to the carburizing atmosphere simultaneously with the workload, while the ...
Philippe Jacquet +2 more
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