Paper Title:
Gas Quenching with Helium
  Abstract

Gas quenching in vacuum furnaces is an increasingly attractive option because it has a low environmental impact and the least distortion of parts being treated. Whilst nitrogen is by far the most common quenching gas, helium is a viable option where higher cooling rates are required, particularly for carburised components. This paper explores the improvements in gas quenching technology that allow components manufactured from standard carburising steels to be quenched with high-pressure helium and illustrates the improvements it offers over high pressure nitrogen quenching. As helium is an expensive rare gas, recycle systems make its use more economically attractive. The factors that need to be taken into account when designing such systems, including the necessity for purification, are discussed. Sources of helium and the means of delivery, particularly in Asia, are also covered.

  Info
Periodical
Solid State Phenomena (Volume 118)
Edited by
Jang Hyun Sung, Chan Gyu Lee, Yong Zoo You, Young Kook Lee and Jae Young Kim
Pages
221-226
DOI
10.4028/www.scientific.net/SSP.118.221
Citation
P. Stratton, I. Shedletsky, M. Lee, "Gas Quenching with Helium", Solid State Phenomena, Vol. 118, pp. 221-226, 2006
Online since
December 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Youn Mi Park, Seh Wan In, Sang Kwon Jeong
Abstract:An efficient and reliable pressurization system for an oxidizer and fuel of a liquid propellant rocket is critical for a successful launch....
776
Authors: Dong Joo Kim, Il Seok Oh, Ho Sang Kwak, Kyoung Jin Kim
Chapter 5: Materials Machining
Abstract:In an optical fiber manufacturing process, glass fibers drawn from the heated silica preform in the furnace should be sufficiently cooled...
1301
Authors: Pakpoom Jittavisuttiwong, Bovornchok Poopat
Chapter 7: Simulation, Design and Manufacturing
Abstract:Helium is widely used as mixing with argon for a shielding gas in GMAW process of Aluminum in order to improve weld quality and increase heat...
219
Authors: Jian Cheng Tang, Lian You Xiong, Bin Dong
Chapter 2: Engineering Thermophysics
Abstract:Fusion reactors require high-speed pumping of helium, deuterium and tritium while maintaining the inventory of tritium in the pumps at a low...
295