Liccoln WPHB - Section 13 (Special Applications).pdf

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1、Section13SPECIALAPPLICATIONSSECTION13.1SECTION13.5UNDERWATERARCWELDINGARCGOUGINGANDCUTTINGPageDescription..........................13.5-1Applications.........................13.5-1Applications.........................13.1-1ElectrodeHolderandCable............13.5-1WeldStrength.....................

2、..13.1-1TypesofElectrodes...................13.5-2Equipment..........................13.1-1PowerSources.......................13.5-3PreparingtoWeld....................13.1-2AirSupply..........................13.5-4TheSelf-ConsumingTechnique.........13.1-2MetallurgicalConsiderations............13.

3、5-4AHazardtoGuardAgainst............13.1-3Troubleshooting......................13.5-4SafetyPrecautions....................13.5-4SECTION13.2PlasmaArcCuttingandGouging........13.5-4WELDINGGALVANIZEDSTEELANDINGOTIRONSECTION13.6WeldingTechniquesforGalvanizedWELDINGCLADSTEELSSteel.....................

4、......13.2-1CommonlyUsedBackingSteels.........13.6-1GalvanizingOverWelds/GalvanizingConsiderationsWhenWelding..........13.6-1Kettles..........................13.2-3ShieldedMetal-ArcWeldingofWeldingIngotIron...................13.2-3CladSteels......................13.6-2WeldingtheSteelSide.........

5、......13.6-2SECTION13.3Back-GougingtheCladSide..........13.6-2WeldingtheCladSide...............13.6-3WELDINGSTEELPIPEFull-AlloyWelding..................13.6-4PipeSteelsandElectrodes.............13.3-1WeldingHeavy-GageClad-SteelPlate...13.6-6Vertical-DownTechniques..............13.3-2Gas-ShieldedW

6、eldingofCladSteels.....13.6-6Vertical-UpTechniques................13.3-4Submerged-ArcWeldingofCladSteels...13.6-6HorizontalTechniques................13.3-6HowtoHandleSpecialJoints..........13.6-7Double-Ending.......................13.3-7WeldDiscontinuities...................13.6-7APIProcedureandQ

7、ualificationPreheatingandStressRelief.............13.6-8Requirements....................13.3-8CodesforIn-PlantPiping..............13.3-9SECTION13.7HARDSURFACINGBYARCWELDINGSECTION13.4HardsurfacingMaterials.............