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1、CommonproblemsandsolutionsofhotrunnerCommonproblemsofhotrunnersystemanalysisandsolutionOneTheheatsinkplateisnotuptothesettemperatureReason:thermocouplecontactbadorinvalidation,heatingwireshortcircuit,heatingThewireconnectionistoolooseortooshort.Handle：Checkwhetherthe
2、rmocouplecontactsarenormal,Isthewiringcorrect?,ChecktheheatingwireLoop.Two.TheheatsinkplateisheatinguptooslowlyReason：Aheatingwireopeningorloosewiring,HeatsplitterplateairvoidInsufficiency,heatinsulationExcessivecoolingongaskets,Poorthermocouplecontact.Handle：Checkal
3、ltheheatingwires,Addairgap,IncreaseonthefixeddieplateHeatshield,Orreducethecoolingofthefixedplateofthefixedplate,inspectThermocouplecontactGood.ThreeThetemperatureoftheheatsinkplateisunstableReason:thermocouplecontactbad.Handling:checkthermocouples.Four.Metalfragment
4、sarepresentinthemeltReason：Thefragmentsofaninjectionmachinescrew,Metalfragmentsininjectionmoldingmaterials.Disposal:removemetaldebris,repairscrew,andfilterimpuritiesinplastic.Five.LeakageofglueonheattransferplateandhotnozzleReason：Thecalculationoftheexpansionisnotcor
5、rect,DiefixingplatematerialtooSoft,ShorttimetemperatureofheatsinkplatetooHigh,OTheinstallationoftypesealingringisaproblem.Handle：RecalculateandcheckChecktheexpansionquantityandreplacethefixeddiefixedplatewithproperhardnessDamagedparts,sealingrings.SixThereisnofilling
6、inthecavityOneReason:themeltingtemperatureistoolow,theinjectionpressureistoosmall,thegateistoosmall,thehotnozzleistooSmalldietemperatureToolow,thenozzleoftheadhesivetubeistoosmallandthehotnozzleisblocked.Handling:increasinghotnozzlesandmanifoldplatesThetemperature,in
7、creasetheinjectionpressure,expandthegate,improveMoldtemperature,installationoflargenozzle,increasethemouthofthemeltdischargeThemouthclearstheblockage.SevenHotnozzlecastingReason:insufficientpumping,toohighmeltingtemperature,toolargegate,coldgateInsufficient,Theincorr
8、ecthotnozzletypeisused.Treatment:increasetheamountofbackpumping(pour)andreducethethermalnozzleTemperatureormoldtemperature,chooseth
