OxyfuelEquipment富氧燃烧设备

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1、OxyfuelWeldingEquipmentChapter12ObjectivesIdentifythevariouscomponentsofanoxyfuelgasweldingoutfit.Describethefunctionofeachcomponentofangasweldingoutfit.Citethemaximumsafeworkingpressureusedforacetylene.Listallthesafetyequipmentthatshouldbewornandusedwhenoxyfuelgasweldinginvariouspositions.

2、CompleteOxyfuelOutfitGasSupplyRegulatorsHosesWeldingTorchEyeProtectionStrikerOxygenSupplyStoredinhighpressurecylinders2000-2640PSIObtainedByAtmosphereElectrolysisOxygen-bearingpelletOxygenCylindersInterstateCommerceCommission(ICC)ForgedinonepieceMustbeatleast¼inchthickHighcarbonsteelCylinde

3、rValvesMadeofbrass“Back-seatingvalve”NeveruseinthepartlyopenedpositionIntegratedpressuresafetydeviceCylindersafetycapAcetyleneCylindersAcetyleneisnotsafeabove15PSICylindersarefilledwithmonolithicfiller85%porosityChargedwithacetoneAbsorbsacetyleneFuseplugsPressureRegulatorsReducehighcylinder

4、pressuretoworkingpressureMaintainaconstantworkingpressurePressureGaugesUsuallytwooneachregulatorOneindicatesbottlepressureOneindicateshosepressureHosesHosecolorsRed,green,andblackGreenandBlackOxygenRedAcetyleneTorchTypesPositivepressuretypeInjectortypePositivePressureTypeMixingchamberisloca

5、tedinsidethevalvebodyRequireshighpressuretomixgasesInjectorTypeAcetyleneisinjectedintotheoxygenstreamusingventuriactionMixingchambercreatesturbulencetofurthermixgasesWeldingTipsSolidcopperTwodifferenttypesoftipsOnepieceTwopieceDonotdroptipsDonottrytoremovehottipsTipCleanersOrificesizeandsha

6、pemustbemaintainedSplatterfrombasemetalmaycontaminatetipTipcleanersusearoundfiletypecleanerOnlycorrectsizecleanersshouldbeusedTipsshouldbefiledoffperpendiculartoorificeWeldingEyeProtectionTheshadeusedshouldbedarkenoughtoprotecttheeyesfromannoyingglare;yetlightenoughtopermittheweldertoseehis

7、work.ManualMetalArc:1/16,3/32,1/8,5/32inchelectrodes103/16,7/32,1/4inchelectrodes125/16,3/8inchelectrodes14MIGWelding(nonferrous)11MIGWelding(ferrous)12AtomicHydrogenWelding10-14TIGWelding12PlasmaCutting14CarbonArc14TorchBrazing3or4LightCutting,upto1inch