真空自耗電弧爐穩(wěn)弧攪拌控制系統(tǒng)研究.pdf

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3、cStabilityStirringControlSystemforVacuumAreRemeltingFurnaceSpeciality：DetectionTechnologyandAutomaticEquipmentNamc：InstrUctoABS’I’RAC’I’Vacuumarcremelting血rl“l(fā)aceisanimportantequipmentthatsmeltingraremetalsuchastitaniuma

4、nditsalloysThearcstabilitystirringcontrolsystemimprovesqualityofingotandthecontrolofparametershasadirecteffectonthequalityofingotTherefore，ithasagreatsignificancetoresearchonarcstabilitystirringcontrolsystemforvacui／inar

5、cremdtingfi11“rlaccAccordingtothecharacteristicsandcompositionofarcstabilitystirringcontrolsystemforvacuumarcremeltingfurnace，thispaperanalyzedthetechnologicalcharacteristicsofarcstabilitystirringsysteminarcstarting，melt

6、ingandfeeding，thethreedifferentmeltingstages，andputforwardsystemcontrolrequirementsThroughanalyzingassociationbetweeningotandarCstabilitystirringcurrentweestablishedaSQLSEVERdatabasewhichCallmakearcstabilitystirringcurre

7、ntmatchingandsettingautomaticallyOnthisbasis，becauseofpermeabilityoftitaniumelementinsmeltingprocess，weanalyzedlongitudinalmagneticfieldandtemperaturefieldinfurnaceandgaveasecondordercontrolmodeltoarCstabilitystirringcur

8、rentthendesignedanarCstabilitystirringcontrolmethodbasedonFuzzyPlD111esystemisadistributedcontrolsystemconsistsindustrialpersonalcomputerPLCandintelligentinstrumentbasedonProfibusDPandEthemetItrealizestheautomaticdetecti

9、onandcontrolofsmeltingprocessByusingtheconfigurationsoftware，wedesignedanddevelopedamanmachineinterfacessysteminordertorealizedisplayingofworkingconditions，displayingandsettingofdataprocesscurves，alarmandotherfunctions，w

10、hichimprovetheoperabilityofthesystemTheactualoperationanddataanalysisofarestabilitystirringcontrolsystemforvacuumarcremeltingfurnaceshowthatthiscontrolsystemplayedagoodroleinstableandprecisecontrollingofarcstabilitycurre

11、ntstirringmetalmoltenpoolevenlyandhasasignificanteffecttoimprovecrystallizationofingotItimprovesVARsystemandhaspromotionalvalueKeywords：vacuumarcremeltingfurnace；arcstabilitystirring；currentcontrol；FuzzyPIDThesis：Applica