Heat Treatment of Metals ›› 2024, Vol. 49 ›› Issue (12): 111-121.DOI: 10.13251/j.issn.0254-6051.2024.12.020

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Research progress of vacuum low-pressure carburizing technology and equipment development

Jiang Chao1,2, Cong Peiwu1,2, Lu Wenlin1,2, Yao Jiawei1,2, Ma Jingbo1,2, Liu Guihua1,2, Du Chunhui1,2   

  1. 1. Beijing Research Institute of Mechanical and Electrical Technology Co., Ltd., CAM, Beijing 100083, China;
    2. National Engineering Research Center for Net Shape Manufacturing, Beijing 100083, China
  • Received:2024-07-03 Revised:2024-10-16 Online:2024-12-25 Published:2025-02-05

Abstract: Current research status of vacuum low-pressure carburizing technology was systematically discussed. The development trend of vacuum low-pressure carburizing technology was analyzed from the prospectives of process, theory, equipment and application, which provides ideas for breaking the bottleneck of single strengthening performance technology and promoting the application of vacuum low-pressure carburizing technology in new materials and fields. At the same time, the development of vacuum low-pressure carburizing equipment at home and abroad was compared, providing reference and inspiration for equipment manufacturing enterprises.

Key words: vacuum low-pressure carburizing, vacuum heat treatment, composite heat treatment, vacuum heat treatment line

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