Yuav ua li cas lub sij hawm sintering ntawm PTFE high-temperature ntaub yuav tswj?

I.AdjustingtheFabricTravelSpeed:TheCoreControlMethod

Kev sib raug zoo ntawm kev ceev thiab sijhawm: Sinteringtime(s) =effectiveheatingsectionlengthoftheoven(m)÷fabrictravelspeed(m/s).Forexample, iftheeffectivesectionlengthis15mandthelinespeedis5m/min,thetimeis3minutes.Productionlinesusefrequencyconvertersorservomotorstopreciselyadjustingtime

Preoritizespeedadjustment: Temperaturehashighthermalinertia.Nyob rau hauv kev tsim khoom, thetemperature should be fixed,andthelinespeed shouldserveasthemostresponsive'timedial.'Whenfine-tuning isneeded, speedadjustment should beprioritized.

II.DefiningEffectiveSinteringTimeandTemperatureZoneSettings

Siv 350° Castheeffectivesinteringthreshold: PTFEmeltsatapproximately327°C, butindustriallevelingrequires370–395°C.Yog li ntawd, thezoneabove350°Cisdefinedastheeffectivesinteringzone.Onlythetimethefabricspendsabovethistemperature.

Multi-zonetemperature Distribution: Preheatingzone (100-250 ° C) - tshem tawm cov txheej txheem thiab tiv thaiv kom tsis txhob tawg; Sinteringzone (360 - 395 ° C) - ua tiav cov qib melting; High-temperaturesettingzone (380 - 390 ° C) -relievesinternalstress; Coolingzone(cooledbelowing)30.

Calculatingeffectiveresidencetime:Dividethetotalengthofallzonessetat≥350°Cbythelinespeed.Forexample, ifthetotalengthofsectionsabove350°Cis10mandthespeedis4m/min,theeffectivesinteringtimeis2.5minutes.

III.ProductSpecificationsDetermineTargetTimeandAdjustments

Referencesinteringtimes(at 380–390°C): Lightweights (0.08–0.13mm)–30–60seconds;Standardtypes(0.18–0.25mm)–1.5–3minutes;Heavytypes(0.35mmandabove)–3–5minutesorlonger,withside”sided”sided.

Kev txheeb xyuas thiab kev hloov kho: Insufficientsintering(lowstrength, powdershedding, micro-cracks) → txo speedtoextendtime; Over-sintering (daj, brittleness, irritatingwhitefumes) → nce speedtoshortenhigh-temperatureresidence.

Temperature-timeequivalenceinterchange: High-temperaturefastsintering (395-405 ° C, kaum ob vib nas this, siab dua) lossis qis-temperatureslowsintering (360-375 ° C, 5-8 feeb, zoo tshaj plaws) yog ob leeg ua tau.

IV.QualityClosed-LoopControlandKeyPrecautions

Kev soj ntsuam zoo: Cov khoom muaj txiaj ntsig zoo nkauj zoo nkauj thiab pob tshab, withasmooth, tsis yog-grainysurface; yellowing qhia tau hais tias dhau-sintering, thaum lub sijhawm ua haujlwm ntawm cov hmoov av sintering, tsis tu ncua-sintering. nteringtime.Yog muaj zog txaus tab sisthefabricisbrittle, preoritizefine-tuningthetemperaturewhileappropriatelyshorteningthetime.Useaninfraredthermometertomonitorfabricsurfacetemperaturetoensurethatresidencetimeabove350°Cmeetstherequirement.

Kaw-loopcontrol: Tsim kom muaj lub kaw lus kaw 'ceev/temperaturesetting → qualityinspectionfeedback → kho.'Temperatureshouldberelativelyfixed,withspeedservingasthereal-timecontrolvariable.

Cov kev txwv tseem ceeb: PTFE decomposes saum toj no 415 ° C, tso tawm toxic gases; ntev nyob rau hauv 400 ° Cisstrictly txwv. gagent, ua rau kom txo qis hauv basefabricstrength.Afterintering, thecoolingrateinthe 300–250° Ccrystallizationzone yuav tsum tau tswj tau kom muaj kev sib haum xeeb.

Summary: Basedonmulti-zonetemperaturesettings, withfabrictravelspeed asthecoreadjustmentparameter, nruj nreem tswjtheeffectiveresidencetimeofthefabricabove350°Cwithinthewindowcorrespondingtoproductthickness,andusequalityinspectionresultsforclosed-loopcorrection.

Cov ntaub ntawv saum toj no yog muab los ntawmJiangsu OKNewMaterialTechnology Co., Ltd.

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