ResultCombineCaseexamplediscussThroughWhatGas？HowThrough？——discussGraphitization Furnace Atmosphere ControldoorWay RealInternationalApply。

I have handled many such cases。

Atmosphere ControlisGraphitization Process Soul，Different GasSystemandPressforceLinkEnvironment，WillAffecttoProduct FinallyPerformanceandPurity。Based on my experience。OurDesignPrepareforThisProvide PreciseFineProcess ControlDirectionCase。

2200℃BelowWorkCondition：ExistThisWarmDegreeAreaInterval，High-Purity Nitrogen（N2） isPerformancePriceCompareExtremelyHigh Protective Gas。ItEnergyEffectiveSeparateAbsoluteOxygenGas，AndBecomeRootFarLower ThanArgon。A common situation is。

2200℃to3200℃HighWarmWorkCondition：WhenWarmDegreeExceed2200℃，NitrogenWillandGraphiteEmitLiveReverseShouldLiveBecomeCyanProcessMaterial，NotOnlyPollutionProduct，MoreWillStrictHeavyCorrosionFurnaceInnerGraphite。Therefore，MustUsageProcessLearnPerformancequalityExtremelyItsStable HighPureArgon（Ar）。Pay attention during maintenance。WeStrongIntenseRecommendationArgonPurityNotLower Than99.999%。If conditions permit。

WeAbandonSimpleSingle ValvedoorOpenCloseControl，StandardMatchAdoptqualityQuantityFlow RateControlDevice（MFC） ComeManagementEnterGas。MFCCanImageWaterDragonHead1Sample，PreciseDesignCertainMergeMaintainHoldGasSystemWithConstantCertainFlow Rate（SinglePosition：L/Minutes）flowEnterFurnaceInner，Flow RateControlPreciseDegreeCanReach±1.5%，GuaranteeProcess HighDegreeHeavyRepeatPerformance。

ExistRowGasEnd，ThroughNormalEquipFromMoveRegulateValve，andFurnace ChamberPressforceSensorConnectMove。

Additionally，PressforceScopeSurround：Micro-positive Pressure "SafetyArea"

FurnaceInnerPressforceThroughNormalMaintainHoldExist1Micro-positive PressureStateState，That isStrategyHigher ThanOuterWorldLargeGasPress。ThisEnergyShapeBecome1Way"GasCurtain"，BlockStopEmptyGasPermeateEnter。OurDesignPrepareClassicType PressforceControlScopeSurroundExist 500 Pa to 1500 Pa（TablePress） ofInterval。

ThroughPastDesignCertainItemStandardPressforceValue，SystemSystemWillFromMoveRegulateEnterGasMFC Flow RateandRowGasValve OpenDegree，MakeFurnacePressStableExistDesignCertainPoint，ShapeBecome1MoveStateFlatBalance PureCleanLinkEnvironment。In actual operation, we found。

CorecenterPriceValue：ThisPrecise Atmosphere ControlSystemSystem，Guarantee Every1FurnaceProductAllExistCompleteFull1Cause ProtectionLinkEnvironmentLowerCompleteTreatment，isGuaranteeProductOrderIntervalPerformanceStable HeavyKeyTechnologyLinkSection。

Technology continues to advance，These experiences are constantly being updated。