Analysis of 12Cr1MoV Heterogenic Joint Welding Defects Based on DMADOV
ZHANG Shengyue;,QING Li;,ZHANG Yudong;,FENG Qiuxia;,NIU Ben;

..............page:1-6

Research Status on Double-metal Composite Pipe at Home and Abroad
WANG Chun;,BI Zongyue;,ZHANG Wanpeng;,YANG Yaobin;,HAN Zichen;

..............page:7-12

Design of Automatic Welding Machine for Tube Plate Ring Weld of Tube Type Heat Exchanger and Welding Torch Orientation Simulation
XU Xiangqian;,ZHOU Haobin;,WANG Jiajia;

..............page:13-17

J55 HFW Oil Pipe Luohe Water Corrosion Test Research
REN Yongfeng;,HUANG Xiaohui;,ZHANG Peng;,SHI Yijun;

..............page:18-22

Research on Welding Process of S420 High Strength Steel Used for Ocean Platform
JIN Weiliang;

..............page:23-27

Load Condition and Performance Requirement Analysis of Submarine Linepipe
DU Wei;,WANG Haitao;,GUO Chen;,LI Helin;

..............page:28-32,39

Research on Spiral Two-steps Welding Inside Weld and HAZ Hardness Test
wang xing shan ;, gou shi feng ;, wang gang ;, yan long ;, wang xiao dong ;, ma chao hui ;, zhang jiang lei ;, hu xu bo ;

..............page:33-39

Research on Root Welding Process of 316L/X65 Double-metal Composite Pipe End
YANG Pin;,CAO Jingjing;,YUAN Pengbin;

..............page:40-45,50

Instrument Impact Experiment Study of X90 Line Pipe
LIN Weiping;,ZHANG Shuxin;,XIE Xuedong;

..............page:46-50

Study of a single pass in full penetration laser lap welding of 1 mm thickness 304L
LI Hailong;,CHEN Jing;,XU Cheng;,XU Xuan;,REN Xusheng;,ZHANG Qi;

..............page:51-54

Research on the Test Effectiveness of TOFD Offset-scan for Defects
QIAN Lifeng;,LIANG Mengxuan;

..............page:55-57,62

Application of Friction Welding and Thermal-mechanical Treatment Technology in the External Upset Tubing Repairing
ZHANG Pengju;,WEI Xiaojuan;,ZHANG Yonghong;,WANG Yu;,YIN Zhijie;,ZHANG Xianwen;,WEI Fang;

..............page:58-62

High Reliability Technology of the Weld Zone of High-Frequency Electric Resistance Welding Linepipes
SUN Hong;,WANG Zhitai;,LIU Zhenwei;

..............page:63-68