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    Comparison and understanding of the main revision contents of GB/T 228.1—2021
    XU Weixing, XU Weicheng
    2022, 58(8): 1-4. DOI: 10.11973/lhjy-wl202208001
    Abstract PDF
    Technical comparison of Chinese standard and American standard calibration methods for dynamic force of axially loaded fatigue testing machine
    LU Qi, ZHENG Cheng, LI Kai
    2022, 58(8): 5-8. DOI: 10.11973/lhjy-wl202208002
    Abstract PDF
    Effect of manganese sulfide mixed inclusions on hydrogen induced cracking of pipeline steel
    ZHANG Jingrui, HU Qingli, GAO Jianfeng, LIU Lanxiao, LI Xiao, ZHAO Xin
    2022, 58(8): 9-12. DOI: 10.11973/lhjy-wl202208003
    Abstract PDF
    Sample preparation method for metallographic examination of nickel coating on cobalt block
    DU Yanhua, WEN Feng, HE Jinming, CHI Chunxia
    2022, 58(8): 13-15,20. DOI: 10.11973/lhjy-wl202208004
    Abstract PDF
    Manufacturing process and product quality of C70S6 non-quenched and tempered steel connecting rod of fracture splitting
    DENG Xiangyang, XIE You, LI Shichao
    2022, 58(8): 16-20. DOI: 10.11973/lhjy-wl202208005
    Abstract PDF
    Scanning electron microscope analysis method for corn starch
    ZHANG Mingzhu, HAO Mingxin, SANG Zhe
    2022, 58(8): 21-24,28. DOI: 10.11973/lhjy-wl202208006
    Abstract PDF
    Uncertainty evaluation of measurement results of melting temperature, crystallization temperature and glass transition temperature of polyetheretherketone materials
    LI Bing, XU Xinrong, LIU Jia, SUN Chengjun, FAN Yan, LU Zhilong
    2022, 58(8): 25-28. DOI: 10.11973/lhjy-wl202208007
    Abstract PDF
    Softening annealing process of GCr15 bearing steel
    XU Shangcheng, ZHOU Lixin, LIU Guanghui
    2022, 58(8): 29-31,76. DOI: 10.11973/lhjy-wl202208008
    Abstract PDF
    Fracture reason of main valve stem of a 300 MW steam turbine
    CHENG Xiang, ZHANG Jie, JIN Shasha, MIAO Chunhui
    2022, 58(8): 32-35. DOI: 10.11973/lhjy-wl202208009
    Abstract PDF
    Reasons of star cracks on steel plate surface
    TONG Yunfeng
    2022, 58(8): 36-38,42. DOI: 10.11973/lhjy-wl202208010
    Abstract PDF
    Causes of 5-stage spheroidization of steam pipeline and its life evaluation
    LI Xiaowei, CHENG Lei, BAI Xuegang, DU Chenyang
    2022, 58(8): 39-42. DOI: 10.11973/lhjy-wl202208011
    Abstract PDF
    Fatigue fracture reason of 42CrMo steel axle box end cover
    WANG Dandan, MA Yu, SHI Xiulian, SONG Dongxue, ZHOU Shengpeng
    2022, 58(8): 43-45,49. DOI: 10.11973/lhjy-wl202208012
    Abstract PDF
    Reasons for cracking of S30408 stainless steel flange
    TANG Pengjie, RUI Leshun, LIANG Bin
    2022, 58(8): 46-49. DOI: 10.11973/lhjy-wl202208013
    Abstract PDF
    Causes of cracking of separator liquid level meter installation short tube
    KOU Guo, MAO Zhongqiang, HU Qiliang, YIN Wen, LI Yang
    2022, 58(8): 50-53. DOI: 10.11973/lhjy-wl202208014
    Abstract PDF
    Fracture reason of connecting rod bolt
    LU Hui
    2022, 58(8): 54-57,60. DOI: 10.11973/lhjy-wl202208015
    Abstract PDF
    Causes of cylinder tube explosion of hydraulic cylinder
    ZHANG Qiang, WANG Shuqiang, WANG Wei
    2022, 58(8): 58-60. DOI: 10.11973/lhjy-wl202208016
    Abstract PDF
    Reasons for cracking of 303Se stainless steel high lock nut
    GAO Jingjing, LI Xujian, MA Yong, LI Ying, YANG Baojian, KE Shuzhong
    2022, 58(8): 61-64. DOI: 10.11973/lhjy-wl202208017
    Abstract PDF
    Fracture reason of stirring shaft of reactor
    CHEN Xianfeng, XU Zeyong, LIAO Li, REN Xukai, YU Huanwei, DU Xiyong
    2022, 58(8): 65-68. DOI: 10.11973/lhjy-wl202208018
    Abstract PDF
    Causes of thread gluing of casing thread in a gas well
    WANG Shuai, XIA Xiaohui, LIU Nan, XIAO Feng, KUANG Xianren
    2022, 58(8): 69-72. DOI: 10.11973/lhjy-wl202208019
    Abstract PDF
    Reasons for abnormal thickness in local position of 37Mn steel seamless gas cylinder
    YANG Maosen, YU Mengli, PENG Zhuyang, GAN Bing, WANG Li
    2022, 58(8): 73-76. DOI: 10.11973/lhjy-wl202208020
    Abstract PDF