石油管道焊接手册英文

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1、ListofcontentsINTRODUCTION..............................................3Pipeweldinginverticaldown(downhill)withcellulosicelectrodes1-Preparationandtacking.....................................27Jointdetails.............................................

2、................42-Jointin5G/PGposition......................................29Jointtypes...............................................................53-Jointin6G/H-L045position...............................35Electrodepositioningangles.............

3、......................6Pipeclassification...................................................7Weldingofpipesinverticalup(uphill)Consumptionofelectrodes.....................................11withmixedcellolosic/basictechniqueASME/ENpositions............

4、..................................131-Preparationandtacking.....................................382-Jointin5G/PFposition......................................403-Jointin2G/PCposition......................................44THEMANUALMETALARC4-Jiointin6G

5、/H-L045position..............................47PROCESS...........................................................15Generalinformation..............................................16DEFECTS:CAUSESANDREMEDIES......49Fillermaterials......................

6、..................................17Pipeweldcellulosicelectrodes................................17Basicelectrodes......................................................19AUTOMATICPIPEWELDING....................53Basicelectrodes-Technicaldata...........

7、.................20Cellulosicelectrodes-Technicaldfata.....................22Generalinformation..............................................54Fillermaterials........................................................55Weldingtechniquesandoperationalprac

8、tices.......57WELDINGTECHNIQUESExamplesofWPS...................................................58ANDOPERATIVEPRACTICES.................25Comparisonbetweenthreeweldingmethods..........62Defectsandremedies........................................