Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process

An age-hardening nitriding gear steel 20CrNi3Mn2Al and its deep case plasma nitriding technology are developed to meet the requirements of large heavy-duty and high-speed gears.The hardness of the material in air-cooled solid solution state is 283~332 HBW, which can ensure good machinability. After...

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Main Authors: Jinsheng Lu, Shufang Du
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2022-04-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.04.024
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author Jinsheng Lu
Shufang Du
author_facet Jinsheng Lu
Shufang Du
author_sort Jinsheng Lu
collection DOAJ
description An age-hardening nitriding gear steel 20CrNi3Mn2Al and its deep case plasma nitriding technology are developed to meet the requirements of large heavy-duty and high-speed gears.The hardness of the material in air-cooled solid solution state is 283~332 HBW, which can ensure good machinability. After the treatment of using 520~540 ℃ variable temperature deep case plasma nitriding process,the steel can obtain high surface hardness,thin compound layer and gentle hardness gradient. The hardness is higher than 900 HV at 0.1 mm below the surface and more than 600 HV at 0.4 mm below the surface; the nitriding depth is deeper than 0.6 mm and the substrate hardness rises to 400~450 HV. It can be used to manufacture gears of heavy load,high speed and high precision, which can partially replace the carburized gears, and therefore leave out the carburizing and oil quenching process, simplify the technology and reduce the gear distortion.
format Article
id doaj-art-76b7d911460e453984286372f4392318
institution Kabale University
issn 1004-2539
language zho
publishDate 2022-04-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-76b7d911460e453984286372f43923182025-01-10T13:59:35ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392022-04-014616517030519256Age-hardening Nitriding Gear Steel and Deep Case Nitriding ProcessJinsheng LuShufang DuAn age-hardening nitriding gear steel 20CrNi3Mn2Al and its deep case plasma nitriding technology are developed to meet the requirements of large heavy-duty and high-speed gears.The hardness of the material in air-cooled solid solution state is 283~332 HBW, which can ensure good machinability. After the treatment of using 520~540 ℃ variable temperature deep case plasma nitriding process,the steel can obtain high surface hardness,thin compound layer and gentle hardness gradient. The hardness is higher than 900 HV at 0.1 mm below the surface and more than 600 HV at 0.4 mm below the surface; the nitriding depth is deeper than 0.6 mm and the substrate hardness rises to 400~450 HV. It can be used to manufacture gears of heavy load,high speed and high precision, which can partially replace the carburized gears, and therefore leave out the carburizing and oil quenching process, simplify the technology and reduce the gear distortion.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.04.024Deep case nitriding hardeningAge-hardeningNitriding gear steel
spellingShingle Jinsheng Lu
Shufang Du
Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
Jixie chuandong
Deep case nitriding hardening
Age-hardening
Nitriding gear steel
title Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
title_full Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
title_fullStr Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
title_full_unstemmed Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
title_short Age-hardening Nitriding Gear Steel and Deep Case Nitriding Process
title_sort age hardening nitriding gear steel and deep case nitriding process
topic Deep case nitriding hardening
Age-hardening
Nitriding gear steel
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.04.024
work_keys_str_mv AT jinshenglu agehardeningnitridinggearsteelanddeepcasenitridingprocess
AT shufangdu agehardeningnitridinggearsteelanddeepcasenitridingprocess