Lub sij hawm teb yog ib qho tseem ceeb tshaj plaws kev qhia tshwj xeeb ntawm cov kub khiav thermocouple, tsis tau nws yog feem ntau to taub yuam kev. Ntau tus neeg siv tsuas yog tsom mus rau qhov ntsuas kub thiab qhov tseeb, tsis quav ntsej txog sai npaum li cas lub sensor tuaj yeem pom qhov hloov pauv. Lub sij hawm teb thermocouple raws nraim li cas cuam tshuam rau molding stability, thiab vim li cas nws tseem ceeb hauv kev tsim khoom tiag?
Lub sij hawm teb ntsuas sai npaum li cas lub thermocouple kuaj pom thiab xa qhov kub hloov pauv. Nyob rau hauv ceev ceev - voj voog txhaj molding, yaj tej yam kev mob hloov tas li thaum txhaj tshuaj, ntim, thiab txias. Ib qho qeeb - cov thermocouple teb tsis tuaj yeem khaws cia, tsim kom muaj kev lag luam ntawm qhov kub thiab txias thiab kev tswj xyuas. Qhov kev lag luam no ua rau oscillation, overshoot, thiab kev ua haujlwm tsis ruaj khov.
Thaum lub sij hawm siab - txhaj tshuaj ceev, yaj dhau los ntawm lub nozzle ua rau kub poob ib ntus. Lub thermocouple ceev ceev tam sim ntawd paub qhov kev hloov pauv no thiab qhia tus tswj kom siv cov cua sov ntau dua, tswj cov viscosity stability. Lub ntsuas ntsuas qeeb tso cai rau qhov ntsuas kub kom qis dhau mus, ua rau tsis sib haum, kev txhaj tshuaj luv luv, lossis cov kab txuas.
Thaum pib, ceev- teb cov thermocouples txo qhov kub thiab txias overshoot. Tsis muaj kev tawm tswv yim sai, tus maub los txuas ntxiv siv lub zog tag nrho txawm tias tom qab ncav cuag qhov kub thiab txias, ua rau overheating. Kev ntsuas nrawm tso cai rau kev hloov kho lub zog meej, tiv thaiv cov cua sov thiab cov khoom siv.
Hauv kev siv lub rooj vag valve, lub sij hawm teb ua qhov tseem ceeb dua. Qhov qhib thiab kaw ntawm cov pins ua rau muaj kev hloov pauv sai sai hauv cov dej ntws thiab cua sov. Thermocouples ceev ceev kom tus maub los kho tam sim ntawd, tiv thaiv drooling, stringing, los yog lub rooj vag tsis xws luag.
Thermal lag tshwm sim los ntawm qeeb sensors yuam cov neeg ua haujlwm siv cov teeb tsa PID tsawg dua, txo cov kev ua haujlwm tag nrho. Qhov no ua rau qeeb qeeb rov qab los ntawm kev cuam tshuam thiab dav qhov kub thiab txias, txo qhov sib xws.
Fast- teb cov thermocouples txhim kho kev ruaj ntseg thaum cov khoom siv lossis xim hloov. Kev nrawm nrawm tso cai rau lub kaw lus hloov mus rau cov cua sov tshiab sai sai, txo lub sijhawm hloov pauv thiab tus naj npawb ntawm qhov tsis lees paub.
Hauv ntau- kab noj hniav, cov lus teb sib npaug ntawm txhua qhov thermocouples ua kom tus cwj pwm tsis sib xws. Yog tias ib qho sensor qeeb dua lwm tus, lub nozzle yuav lag luam thermally, tsim kom muaj qhov tsis sib xws. Uniform ceev teb tswj kab noj hniav - mus rau - kab noj hniav sib xws.
Nyias- sheathed, compact- junction thermocouples muab cov lus teb zoo tshaj plaws rau cov neeg khiav dej num kub. Cov qauv tsim no txo qis thermal huab hwm coj, tso cai rau lawv tuaj yeem hnov mob sai sai rau qhov kub thiab txias. Standard bulky sensors tsis tuaj yeem phim qhov kev ua tau zoo no.
Thaum cov lus teb ceev ceev tau txais txiaj ntsig, nws yuav tsum tau ua ke nrog cov teeb liab ruaj khov zoo. Cov sensors rhiab heev tuaj yeem khaws cov suab nrov hluav taws xob, ua rau tsis muaj kev ruaj ntseg. Hwm kub khiav thermocouples sib npaug ceev thiab suab nrov kuj.
Thaum kawg, lub sij hawm teb ncaj qha txiav txim siab npaum li cas tus kub khiav tuaj yeem tswj tau qhov kub thiab txias nyob rau hauv cov xwm txheej zoo. Faster, ntau teb sensors sib npaug zoo sib xws molding.
