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1、MachineSideMachineSideReferenceGuideReferenceGuideCopyright,2000Hypertherm,Inc.ThesematerialscannotbereproducedinanyformwithoutthepermissionofHypertherm,Inc.Plasmais“TheFourthStateofMatter”•Thefirstthreestatesofmatteraresolid,liquid,andgas.•Forwater,thesestatesareice,water,andste
2、am.•Plasmaistheresultofaddingmoreenergytoagas.Copyright,2000Hypertherm,Inc.ThesematerialscannotbereproducedinanyformwithoutthepermissionofHypertherm,Inc.Definition:Plasmaisanelectricallyconductivegas.Theionizationofgasescausesthecreationoffreeelectronsandpositiveionsamongthegasat
3、oms.Whenthisoccurs,thegasbecomeselectricallyconductivewithcurrentcarryingcapabilities.Thus,itbecomesaplasma.PlasmainNature•Lightning-moveselectricityfromoneplacetoanother-gasesintheairaretheionizationgasesCopyright,2000Hypertherm,Inc.Thesematerialscannotbereproducedinanyformwitho
4、utthepermissionofHypertherm,Inc.CuttingwithPlasma•Plasmacuttingisaprocessthatutilizesanoptimizednozzleorificetoconstrictaveryhigh-temperature,ionizedgassothatitcanbeusedtomeltandseversectionsofelectricallyconductivemetals.•ThePlasmaarcmeltsthemetal,andthehighvelocitygasremovesthe
5、moltenmaterial.Copyright,2000Hypertherm,Inc.ThesematerialscannotbereproducedinanyformwithoutthepermissionofHypertherm,Inc.GasSelection●PlasmaGas-Alsocalledthecutting•Selectingthepropergasforgas.Gasthatisionizedinthethematerialyouarecuttingplasmaprocess,exitsthroughthe.nozzleorifi
6、ce.iscriticaltogetaquality●Examplescut.✲Air✲Oxygen✲Nitrogen✲Argon-Hydrogen●ShieldGas-Secondarygasintheplasmaprocess;surroundsthearcandisusedtohelpconstrictarcandcooltorch;createsthecuttingenvironmentwhichamongotherthingseffectstheedgequality.●Examples✲Air✲CO2✲Oxygen-Nitrogen✲Air-
7、Methane✲Nitrogen✲MethaneCopyright,2000Hypertherm,Inc.ThesematerialscannotbereproducedinanyformwithoutthepermissionofHypertherm,Inc.SelectingtheRightGasiGasqualityiscriticalfortheproperoperationofplasmaarccuttingsystemsandoptimalcutquality.iContaminatescancausemisfiring,poorcutqua
8、lityorpoorconsumablelife.iIncludes:✲gasi
