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    Continuous cooling transformation of a microalloyed non－quenched and tempered steel for automobile
    ZHAO Nan, SUN Xiaoran, WANG Chengming, GUO Weichao, ZHAO Jianlei
    2024, 60(4): 1-4. DOI: 10.11973/lhjy-wl202404001
    Abstract PDF
    Effect of vacuum gas quenching heat treatment on hardness of powder metallurgy high speed steel S390
    LEI Yang, WANG Xing, TIAN Wei, CHEN Fang, GONG Tianzhe
    2024, 60(4): 5-8. DOI: 10.11973/lhjy-wl202404002
    Abstract PDF
    Methods and conditions for parallel use of hydraulic jacks
    LI Juntao
    2024, 60(4): 9-11. DOI: 10.11973/lhjy-wl202404003
    Abstract PDF
    Dynamic continuous cooling transformation curve of Q690D high strength steel
    LU Chaochao, SUN Xuejiao, FANG Jinlin
    2024, 60(4): 12-16. DOI: 10.11973/lhjy-wl202404004
    Abstract PDF
    Rapid evaluation technology of austenitic stainless steel material degradation
    CHEN Xianfeng, ZHOU Bin, YU Huanwei, XIAO Biao, REN Xukai, DU Xiyong, TANG Yantong
    2024, 60(4): 17-24. DOI: 10.11973/lhjy-wl202404005
    Abstract PDF
    High temperature low cycle fatigue life prediction method of nickel based alloy based on crystal plasticity theory
    MIAO Yong
    2024, 60(4): 25-30. DOI: 10.11973/lhjy-wl202404006
    Abstract PDF
    Experiment on influencing factors of shear stress based on punching shear
    GUAN Yipeng, CHEN Dunjia, DU Xuelei
    2024, 60(4): 31-33. DOI: 10.11973/lhjy-wl202404007
    Abstract PDF
    Evaluation of uncertainty in measurement of galvanized layer thickness of wire rope mesh fasteners
    SONG Mengjia, YIN Yahao, GUO Lei, SU Jianfeng
    2024, 60(4): 34-36. DOI: 10.11973/lhjy-wl202404008
    Abstract PDF
    Leakage reason of heat exchange tube of oil cooler
    XU Hengting, WU Yingying, YAO Wende, LIU Weili, CHEN Li
    2024, 60(4): 37-41. DOI: 10.11973/lhjy-wl202404009
    Abstract PDF
    Crankshaft crack cause
    LYU Yuan
    2024, 60(4): 42-45. DOI: 10.11973/lhjy-wl202404010
    Abstract PDF
    Causes of gear shaft fracture in marine gearbox
    HU Qiancheng, ZHOU Jun, LI Bing
    2024, 60(4): 46-48. DOI: 10.11973/lhjy-wl202404011
    Abstract PDF
    Causes of early fracture of H13 steel die punching head
    CHEN Meng, XIE Xiaowen, YAO Wangtong
    2024, 60(4): 49-53. DOI: 10.11973/lhjy-wl202404012
    Abstract PDF
    Causes of hot upset forging cracking of 40Cr round steel
    WANG Yan
    2024, 60(4): 54-56. DOI: 10.11973/lhjy-wl202404013
    Abstract PDF
    Fracture reason of flat round head square neck bolt of 304 stainless steel
    ZHUANG Cuifen, SHEN Jiamin, CHEN Xiaochun, LI Shuai, JIANG Huasheng
    2024, 60(4): 57-59. DOI: 10.11973/lhjy-wl202404014
    Abstract PDF
    Causes of leakage of external manifold of natural gas gathering station
    JIA Yani, JI Ruyi, LIU Tianqing, SHAO Kaibin
    2024, 60(4): 60-64. DOI: 10.11973/lhjy-wl202404015
    Abstract PDF
    Cracking reason of a drilling tool probe pipe
    HAN Shuting, SHI Yingge, XU Peilin
    2024, 60(4): 65-67. DOI: 10.11973/lhjy-wl202404016
    Abstract PDF
    Fracture reason of P110S steel grade tubing body
    ZHAO Yinghui, XIA Wenbin, ZHOU Yong, ZHAO Jianming
    2024, 60(4): 68-71. DOI: 10.11973/lhjy-wl202404017
    Abstract PDF
    Comprehensive management of physical and chemical laboratory equipment
    WU Zheng, CHANG Wenjing, YANG Jun
    2024, 60(4): 72-75. DOI: 10.11973/lhjy-wl202404018
    Abstract PDF
    Scanning electron microscope failure analysis and maintenance examples
    SUN Qiuxiang, LU Huifen, SONG Peng, LI Dandan
    2024, 60(4): 76-77. DOI: 10.11973/lhjy-wl202404019
    Abstract PDF