Ceramic Nozzle Heater Siab-Kev Hloov Kho Ntau Lawm: Thermocouple Stability thiab Anti- Kev Tshawb Fawb Txog Kev Laus
Nruab nrab thiab siab -kawg txhaj tshuaj molding kab koom nrog engineering yas ua thiab siab- ntau zaus ntau lawm feem ntau tshem tawm mica nozzle heaters vim tsis txaus siab - kub stability, thiab ceramic nozzle heaters dhau los ua lwm txoj hauv kev. Ntau tus neeg siv tsuas yog nkag siab txog qhov siab - qhov kub zoo ntawm cov qauv ceramic tab sis tsis paub txog lawv cov kev tswj hwm kev ruaj ntseg thermocouple thiab cov kev txwv kev ua haujlwm hauv siab - zaus cyclic ua haujlwm. Raws li cov ntaub ntawv pov thawj, ceramic nozzle heaters muaj thermal shock kuj zoo heev thiab tsis tshua muaj drift yam ntxwv nyob rau hauv nruab nrab thiab siab - kub nruam ntau lawm, nrog tshwj xeeb tu yuav tsum txawv ntawm qhib mica lug.
Ceramic nozzle heaters txais kev ywj pheej ceramic particle rwb thaiv tsev ntim cov qauv, txawv kiag li ntawm txheej mica qhib qauv. Lub siab - kub resistant ceramic rwb thaiv tsev cov khoom muaj lub cev ruaj khov hauv qab 380 degree, tsis muaj hmoov, deformation lossis kev laus tsis ua haujlwm. Lub segmented los ua ke tsim paub txog cov ntaub qhwv thiab cua sov ntawm me me - cov qauv nozzle, nrog cov cua kub uas tsis tshua muaj cua sov thiab me me ib puag ncig thermal tawg cuam tshuam. Cov yam ntxwv ntawm cov qauv no muab qhov chaw ruaj khov thermal thaj chaw rau kev saib xyuas thermocouple, ua kom tsis txhob muaj teeb meem tshwm sim los ntawm kev tiv thaiv kev laus.
Nyob rau hauv siab - zaus pib- nres cyclic ntau lawm, ceramic rwb thaiv tsev tuav ruaj khov rigidity thiab thermal kuj. Rov qab thermal expansion thiab contraction yuav tsis ua rau rwb thaiv tsev loosening los yog sib txawv tiam, kom ntseeg tau tias zoo ib yam ntawm cov cua sov tso zis efficiency rau lub sij hawm ntev. Hauv kev ua haujlwm tas mus li ntawm 24-teev kev ua haujlwm thiab kev hloov pauv ntau zaus, cov ntaub ntawv ntsuas qhov ntsuas kub ntawm cov tshuab hluav taws xob ceramic nozzle tseem nyob ruaj khov, nrog qhov dav dav dav qis dua li cov qauv mica. Lub sijhawm ua haujlwm ntev yuav tsis ua rau qhov kub thiab txias overshoot thiab jitter tshwm sim los ntawm kev ua haujlwm qaug zog.
Siab - cov ntaub ntawv xeem ntau lawm txheeb xyuas qhov zoo ntawm kev ruaj ntseg intuitively. Nyob rau hauv 320℃nruab nrab- kub thiab 2000 tas mus li pib- nres cycles, ceramic nozzle heaters tuav thermocouple drift nyob rau hauv 0.5 degree, nrog cua sov efficiency attenuation tsuas yog 2.3%. Nyob rau hauv sib piv, mica heaters nyob rau hauv zoo tib yam tej yam kev mob tsim drift ntawm 1.7℃thiab efficiency attenuation ntawm 8.1%. Qhov kev ua haujlwm ruaj khov zoo heev txo cov khoom lag luam uas tshwm sim los ntawm nozzle kub hloov pauv thiab txuas ntxiv cov khoom hloov pauv.
Ceramic nozzle heaters muaj cov qauv kev txwv tsis pub muaj kev cuam tshuam. Ceramic rwb thaiv tsev hais muaj siab brittleness, thiab me ntsis kev sib tsoo, extrusion los yog tsausmuag disassembly thiab sib dhos yuav ua rau lub zos tawg thiab shedding. Kev puas tsuaj ceramics tsim cov cua sov dissipation qhov khoob thiab cov chaw kub hauv zos, ua rau cov thermocouple hauv zos sampling deviation thiab tsis ruaj tsis khov kub tswj. Yog li ntawd, kev saib xyuas txhua hnub ntawm cov cua sov ceramic yuav tsum muaj kev ua haujlwm zoo thiab ua haujlwm siab, tsis txhob cuam tshuam rau kev puas tsuaj.
Rau nruab nrab - kub engineering yas ua thiab siab - zaus txhaj tshuaj ntau lawm, ceramic nozzle heaters ua tau zoo sib npaug ntawm kev ua tau zoo thiab tus nqi. Kev cob qhia cov txheej txheem kev cob qhia thiab cov phiaj xwm thev naus laus zis thev naus laus zis tuaj yeem tso tawm qhov kev ruaj ntseg siab zoo ntawm cov txheej txheem rwb thaiv tsev ceramic thiab tuav ntev - lub sijhawm ua haujlwm ntawm cov kab ntau lawm.
