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    Handling “New Normal”, Making innovations to promote development, and Speeding up transformation and upgrade of domestic steel tube industry
    LI Qiang
    2015, 44(6): 1-6.
    Abstract PDF
    Braving the difficulties, Grasping the opportunities, Making innovation and transformation, Promoting healthy and continual development of domestic steel tube industry
    CHENG Haitiao
    2015, 44(6): 7-9.
    Abstract PDF
    Discussion on and Application of Methods for Forming and Welding of Bimetal Clad Pipe—Welding with Metallurgical Composite Plate
    HE Xiaodong, LI Jike, LIANG Minghua, ZHU Lixia
    2015, 44(6): 10-14.
    Abstract PDF
    Research on Welding Process for L245/S30403 Straight Clad Pipe
    SHANG Caizhong
    2015, 44(6): 15-20.
    Abstract PDF
    Study on On-line Heat Treatment Process for Large-sized Heavy-wall X70QS Seamless Linepipe
    Huang Dianyuan, Zhang Yesheng
    2015, 44(6): 21-25.
    Abstract PDF
    Analysis of Causes for Nonconformance of Heavy-wall X80 SAWH Pipe to Guide Bending Test
    NIU Aijun, NIU Hui, HUANG Xiaohui, LIU Haizhang, ZHAO Hongbo
    2015, 44(6): 26-31.
    Abstract PDF
    R & D of X80 Steel Pipe Used as Support of Leg of Offshore Jack-up Drilling Platform
    ZHOU Xiaofeng, ZHANG Chuanyou, LIU Jiangcheng, LU Fenghua, ZHANG Guozhu, BIAN Lingxi
    2015, 44(6): 32-36.
    Abstract PDF
    A Brief of CP950 Large-scale NC Hot Spinning Machine
    LIU Haichun, SUN Nianguang, LI Dongfeng, LI Huiling, GUO Heng, YAN Shanwu
    2015, 44(6): 37-39.
    Abstract PDF
    A New Design of Hydraulic System Used for Piercing Mill 4-roll Centering Device
    SUN Guoqing
    2015, 44(6): 40-43.
    Abstract PDF
    Design Modification of Drawing-car of Dual-chain Drawing Mill
    LI Jianjun, SHI Lichen, YUN Zhida
    2015, 44(6): 44-47.
    Abstract PDF
    A New Process to Eliminate Inner Projection Defects of Pierced Shell End
    LUO Dejin, CHU Guangsheng, WANG Xuefei
    2015, 44(6): 48-51.
    Abstract PDF
    Influence by Forming Stress on Weld Seam Mechanical Properties of Spiral Welded Pipe and Relevant Control Measures
    LIU Hongfei, CHAO Xiaolong
    2015, 44(6): 52-56.
    Abstract PDF
    Control Difficulties and Critical Points Concerning Manufacture of Hi-precision Drill-purpose Pipe with Assel Mill
    WU Zhiqiang, LI Jinxi, LI Peida
    2015, 44(6): 57-60.
    Abstract PDF
    Control of Residual Stress of X90M SSAW Pipe—Setting up Model of Relationship between Screwdown Amount of Roll 2 and Residual Stress
    ZHANG JiJian, FU Chao, WANG Xiandong, YANG Qingjian
    2015, 44(6): 61-66.
    Abstract PDF
    A Method for Automatically Generating Grinding Data for Steel Tube Straightening Roll
    Shao Yi
    2015, 44(6): 67-71.
    Abstract PDF
    Analysis and Solution of Slipping of Delivery Machine during Production of Spiral Welded Pipes
    ZHOU Shanzheng, YANG Qingjian, LI Guosong
    2015, 44(6): 72-73.
    Abstract PDF
    Uncertainty Evaluation of Measurement of Chemical Element Contents in Linepipe-purposed Steel with Photoelectric Direct-reading Spectrometer
    LI Tao, GONG Qing, LIU Zhenwei
    2015, 44(6): 74-78.
    Abstract PDF
    Study on Rebound Dynamic Compensation of U-shaped Tube during Pushing-bending Operation
    WANG Zhijian, WANG Kui
    2015, 44(6): 79-82.
    Abstract PDF
    SHANDONG PROVINCE SIFANG TECHNICAL DEVELOPMENT CO., LTD.
    2015, 44(6): 83-83.
    Abstract PDF