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    Product Mix Analysis of Vallourec and Related Inspiration for Steel Tube Enterprises of China (PartⅠ)
    TIAN Yan
    2020, 49(5): 1-7.
    Abstract PDF
    Research Achievement and Progress of Domestic Submarine Acid-resistant Linepipe
    WANG Bin, HUANG Jiqing, WANG Jia, CHEN Long, ZHAO Bo, ZHAO Yuyue
    2020, 49(5): 8-14.
    Abstract PDF
    Review of Development History of Premium Connection for Oil Tubing and Casing
    LI Xiaobing, HU Zhili
    2020, 49(5): 15-22.
    Abstract PDF
    Control of HFW Linepipe Yield Strength Ratio and Related Discussion
    HU Songlin, QU Xianyong, ZHANG Shuhua
    2020, 49(5): 23-25.
    Abstract PDF
    Effect by Heat Treatment on Microstructure and Hardness of GH2747 Alloy Seamless Tube
    GAO Pei, TANG Yuchun, JIA Huan
    2020, 49(5): 26-29.
    Abstract PDF
    Introduction of Heat Treatment Production Line for Φ180 mm Seamless Steel Pipe
    LI Xiuling, ZHANG Lei, Hui Juan, ZHANG Haixiao
    2020, 49(5): 30-33.
    Abstract PDF
    Design and Application of Laser Cutting System for Steel Pipe Production Line
    ZHAO Sanjun, GUO Hongqing, SU Xiaoming, ZHANG Dongxu, MU Huaijing, ZHANG Zhiqiang, ZHOU Yumei
    2020, 49(5): 34-37.
    Abstract PDF
    Study on Hot-extrusion Process for 110S-13Cr Heavy Wall Seamless Steel Pipe
    ZHAO Ming, ZHANG Yabin, PANG Yusi, LIU Jing, WANG Lianhua
    2020, 49(5): 38-42.
    Abstract PDF
    On-line Measurement and Calibration of Roll Pass of 3-roll Mandrel Pipe Mill
    WANG Shanbao, WU Hong, CHEN Zhigang, ZHAO Chunsheng, ZHANG Hao, YUAN Qin, ZHAO Bo, XIE Degang
    2020, 49(5): 43-45.
    Abstract PDF
    Optimization of Heavy-wall Pipe Pass of Slight-stretch Sizing(Reducing)Mill
    GUO Haiming, LI Linlin, QIN Guiwei, YANG Yonghai, HONG Xun
    2020, 49(5): 46-51.
    Abstract PDF
    Analysis for End-cracking of L80-3Cr Corrosion-resistant Oil Well Pipe
    XIA Wenbin, ZHAO Yinghui, HUANG Dianyuan
    2020, 49(5): 52-55.
    Abstract PDF
    Study on Quenching and Tempering Process for 25CrMoBVRE Steel Pipe for Heavy Oil Thermal Recovery Well
    SHI Xiaoxia, LI Xiao, REN Huiping, LI Jing, ZHAO Yanhui
    2020, 49(5): 56-60.
    Abstract PDF
    Effect by Quenching Process on Microstructure and Properties of 37Mn5 Heavy-walled Steel Pipe
    WANG Jinyong, ZHANG Yabin, CHEN Mingyi, WANG Fuzhi, CHEN Xinhe
    2020, 49(5): 61-64.
    Abstract PDF
    Application of Servo Control Technology to Code-stenciling Machine
    LIU Yuxiang, CHEN Weiwei, CAI Wenli, GAO Lu, Tan Yun
    2020, 49(5): 65-69.
    Abstract PDF
    A Cold-drawing Die for Eliminating Steel Pipe Inner Surface Spiral Defect
    WANG Jiacong, LIU Xiancui, WEI Jinyu, ZHANG Jiagen
    2020, 49(5): 70-72.
    Abstract PDF
    Discussion on Critical Parameters Concerning Computation of Connection Strength of Oil Tubing and Casing
    QI Yupei, ZHANG Yong, JI Bingyin, KONG Xiangling, XU Aiyan, SHI Jiaoqi
    2020, 49(5): 73-77.
    Abstract PDF
    Steel tube heat treatment process technology （Part Ⅰ） —Practical Technology for Hot-rolled Seamless Steel Tube
    CHENG Haitao, LI Chibo, LI Xiao
    2020, 49(5): 78-83.
    Abstract PDF