Txhua qhov ruaj khov kub khiav txhaj tshuaj molding cia siab rau kev kaw- voj voog ntsuas kub ua los ntawm cov cuab yeej siv hluav taws xob thermocouple; hloov maj mam kev sib txawv ntawm cov thermocouples ncaj qha hloov melt flow balance thiab tiav cov khoom tawm los. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm kub khiav thermocouples ua raws li cov nyhuv Seebeck: ob qhov sib txawv ntawm cov hlau tsis sib xws tsim lub voj kaw, ua kom muaj qhov sib txawv ntawm qhov kub thiab txias ntawm qhov sib txuas kub (xws li kev sojntsuam ntawm qhov chaw) thiab qhov sib txuas txias (tswj cov hlua hluav taws xob). Kub controllers hloov millivolt signals rau hauv tiag-lub sij hawm kub qhov tseem ceeb los kho lub rhaub lub hwj chim, ua thermocouple sensing raug qhov tseem ceeb ntawm cov txheej txheem ntawm tag nrho cov kub khiav system.
Classification technology ntawm thermocouple xov hlau yog lub hauv paus tseem ceeb. Hom K (chromel-alumel) dhau los ua tus qauv thoob ntiaj teb rau cov neeg ua haujlwm kub niaj hnub, nrog kev ua haujlwm kub ntawm 0-1260 degree, muaj zog oxidation tsis kam, tsis tshua muaj nqi thiab cov teeb liab ruaj khov, haum rau PP, ABS, PC thiab feem ntau engineering yas molding. Hom J (hlau-constantan) yog tshwj tseg rau qis- kub molding hauv qab 750 degree, dav sib txuam nrog cov qub qhib- rooj vag kub khiav tshuab, tab sis nws nquag oxidation drift nyob rau hauv ntev -lub sij hawm siab - kub cycles. High-kawg kho mob thiab siab-kub PEEK molding txais kev kho hom E thermocouples nrog ntau dua rhiab heev, thaum ultra-siab-kub tshwj xeeb polymer ua siv cov hlau tsis tshua muaj S- hom thermocouples nrog platinum-rhodium alloy hlau cov nqi, txawm hais tias tus nqi nce ntxiv.
Ntim thiab ntxhia rwb thaiv tsev (MI) thev naus laus zis txiav txim siab txog kev siv tshuab. Ib txwm raug xaim thermocouples raug kev txom nyem los ntawm cov hlau tawg tom qab rov ua pwm disassembly thiab khoov; niaj hnub mainstream kub khiav thermocouples txais magnesium oxide puv stainless hlau sheaths, compressing hlau hlau nruj nreem tiv thaiv extrusion, kev co thiab khoov qaug zog. Caij nplooj ntoos hlav-loaded kev sib cuag tshuab yog lwm qhov tseem ceeb ntawm kev tsim kho tshiab: qhov kev sojntsuam nruab ib qho kev tsim- nyob rau lub caij nplooj ntoos hlav kom 100% nyob ze nrog lub nozzle / manifold mounting qhov, tshem tawm cua qhov sib txawv thaum tshav kub kub poob uas ua rau 10-15℃ntsuas qhov sib txawv, ib qho kev sib txawv ntawm cov xovxwm ruaj khov - tsis them nyiaj hauv thermoco.
Cov teeb liab kis tau tus mob thev naus laus zis sawv cev rau kev txhim kho kev lag luam tshiab. Tsoos analog thermocouple cables xa cov cim tsis muaj zog millivolt, raug cuam tshuam rau electromagnetic cuam tshuam los ntawm cov kab hluav taws xob cua sov ua rau kub dhia. Husky's DataWave thev naus laus zis sib koom ua ke cov teeb liab hloov pauv ntawm cov pwm kawg, xa cov ntaub ntawv kub kub los ntawm nyias ib kab, txiav cov kab hluav taws xob tsis ua hauj lwm ntau dua 60% thiab ua kom yooj yim ntau- cheeb tsam pwm cable layout. Txias junction them nyiaj thev naus laus zis ntxiv txhim kho kev ntsuas qhov tseeb: cov tswj tau txais kev ntsuas qhov txias kawg ambient kub hloov, zam kev nyeem ntawv distortion tshwm sim los ntawm lub Hoobkas rhiav kub hloov pauv.
Thermocouple installation positioning technology yog yooj yim overlooked tsis tau txiav txim siab. Cov txheej txheem kev lag luam xav tau kev sojntsuam yuav tsum tau muab tso rau ntawm thaj chaw kub tshaj plaws ntawm cov kub nozzles thiab manifolds, tsis txhob muaj cov haujlwm nyob ze ntawm cov cua txias los yog pwm sab nrauv phab ntsa nrog cov cua sov hnyav. Qhov kev tso kawm tsis tsim nyog yuav ua rau ncua kev tawm tswv yim kub, ua rau yaj overheating decomposition lossis cov khoom txias thaiv. Ua ke nrog thermal simulation CAE tsom xam, kub khiav designers ua ntej- teem thermocouple tshwj xeeb qhov ntawm tshav kub concentration cov ntsiab lus kom lav qhov ntsuas kub zoo ib yam thoob plaws qhov ntev - voj voog ntau lawm.
