Vim li cas Thermocouple Readings Deviate nyob rau hauv Ntev -Lub Sij Hawm Yas Ua: Yuav Ua Li Cas Ceramic Rhaub Rhaub Rhaub Stability Fixes Chronic High -Tsub Drift
Kev nyeem ntawv kub tsis tu ncua yog ib qho teeb meem nyuaj tshaj plaws hauv kev lag luam yas extrusion thiab txhaj tshuaj molding ntau lawm. Ntau cov kab ntau lawm tau nruab nrog siab -precision thermocouple sensors thiab ntse tswj qhov kub thiab txias, tab sis maj mam sib txawv ntawm qhov kub thiab txias tseem tshwm sim tom qab ntau pua xuab moos ntawm kev ua haujlwm tas mus li, ua rau cov yas yas tsis sib xws, cov khoom siv tsis zoo, thiab cov khoom siv tsis tau npaj tseg. Feem ntau ntawm - cov kws tshaj lij ntawm qhov chaw qhia qhov teeb meem no rau qhov tsis zoo ntawm cov thermocouple aging lossis system parameter tsis raug, tab sis cov ntaub ntawv siv tau ua pov thawj tias qhov kev ua haujlwm tsis ruaj khov ntawm cov cua kub yog qhov tseem ceeb ua rau lub sij hawm ntev - lub sij hawm thermocouple drift nyob rau hauv siab - kub ua hauj lwm ib puag ncig.
Tsoos mica thiab cam khwb cia txhuas cua sov rings ntsib kev ua haujlwm tsis zoo ntawm kev ua haujlwm tsis zoo nyob rau hauv lub caij nyoog ntev tshaj - kub thiab nquag thermal caij tsheb kauj vab. Mica rwb thaiv tsev cov ntaub ntawv tau txais kev nce qib pulverization thiab carbonization thaum ua haujlwm siab tshaj 400℃rau ncua sij hawm. Cov txheej txheem rwb thaiv tsev puas ua rau cov khoom siv hluav taws xob tsis tu ncua micro- txoj hauv kev, ua rau cov hluav taws xob tsis sib xws thiab cuam tshuam cov thermal field faib. Cam khwb cia aluminium heaters raug kev txom nyem los ntawm lub plhaub deformation thiab sab hauv cov txheej txheem loosening nyob rau hauv rov qab txias thiab kub alternation, uas cuam tshuam cov cua sov conduction. Ob qho tib si faulty ua rau tsis ruaj tsis khov thermal field keeb kwm yav dhau, ua kom ruaj khov -cov ntaub ntawv ntsuas kub ntawm thermocouple tsis tuaj yeem cuam tshuam qhov kub thiab txias, ua rau kev ntsuas ntsuas sib txawv raws sijhawm.
Ceramic band heaters daws qhov teeb meem kev lag luam no los ntawm lub cev thiab tshuaj lom neeg ruaj khov ntawm siab -frequency industrial ceramic insulation. Sib txawv ntawm cov khoom siv hluav taws xob thiab cov hlau sib xyaw ua ke, cov khoom siv ceramic ua kom tiav cov qauv kev ntseeg siab thiab cov rwb thaiv tsev ruaj khov nyob rau hauv kev ua haujlwm siab - kub. Tsis muaj carbonization, softening lossis deformation tshwm sim nyob rau hauv ntev - lub sij hawm siab - qhov kub thiab txias ib puag ncig, kom ntseeg tau tias cov khoom cua sov tsis sib xws thiab zoo ib yam thermal field faib nyob ib ncig ntawm cov khoom chim thiab pwm. Lub hauv paus ruaj khov thermal tshem tawm cov cuam tshuam sab nraud rau qhov ntsuas kub ntawm thermocouple, tuav ntev - lub sij hawm raug kaw - voj voog tswj qhov kub thiab txias.
Raws li nyob rau ntawm - qhov kev paub dhau los ntawm qhov chaw ua haujlwm, qhov sib piv ntawm cov khoom siv hluav taws xob ruaj khov thiab ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov tseeb ncaj qha txiav txim siab cov txiaj ntsig ntawm siab -kub engineering yas ua. Rau PA, PC, PPS thiab lwm yam siab - plastics kev ua tau zoo, txawm tias qhov sib txawv ntawm qhov kub ntawm 1-2℃yuav ua rau cov khoom decomposition, plasticization tsis txaus los yog nto blemishes. Ceramic cua sov cov qauv kaw thermal teb ruaj khov los ntawm kev tiv thaiv kev tiv thaiv kev ua haujlwm, tso cai rau cov thermocouple sensors kom ntes cov ntaub ntawv kub tiag tiag thiab ua haujlwm tau zoo tsis tu ncua, thiab zam kev hloov pauv zoo los ntawm qhov system kub drift.
Ib 2000- teev tas mus li siab - qhov ntsuas kub ua haujlwm tau sau cov ntaub ntawv pov thawj ntawm cov cua sov ntawm peb lub tshuab hluav taws xob thiab cov thermocouple drift qhov tseem ceeb raws li cov qauv kev lag luam ua haujlwm, muab cov ntaub ntawv nkag siab zoo rau kev tswj qhov kub thiab txias ntawm qhov chaw:
|
Cua sov hom |
Ua haujlwm kub |
2000h Insulation Resistance Attenuation |
Nquag Thermocouple Drift Tus Nqi |
Ntev -Lub Sij Hawm Thermal Field Stability |
|---|---|---|---|---|
|
Mica Band rhaub |
410 degree |
34.2% |
2.3 degree |
pluag |
|
Cast Aluminium Band rhaub |
410 degree |
19.6% |
1.4 degree |
Nruab nrab |
|
Ceramic Band rhaub |
410 degree |
4.1% |
0.35 degree |
Zoo heev |
Cov ntaub ntawv ntsuam xyuas pom tseeb tias cov khoom siv hluav taws xob ceramic muaj qhov zoo tshaj qhov ntev - lub sij hawm siab - kub rwb thaiv tsev ruaj khov piv nrog cov khoom ib txwm muaj. Lub ultra- tsis tshua muaj rwb thaiv tsev attenuation tus nqi kiag li tsis txhob thermal teb distortion tshwm sim los ntawm cov txheej txheem aging, zoo heev suppressing thermocouple ntev - lub sij hawm drift. Hauv kev tsim khoom tiag tiag, qhov no txhais tau tias tsawg dua qhov system rov ua dua, cov khoom ruaj khov dua, thiab cov nqi kho qis dua rau siab - cov cuab yeej ua haujlwm kub.
Nws yog ib nqi sau cia hais tias thermocouple qhov tseeb txij nkawm yog ib qhov systematic project. Txawm tias muaj siab -ruaj khov ceramic cua sov cov ntsiab lus, micro-calibration tsis tu ncua tseem yuav tsum tau tshem tawm cov teeb meem me me. Kev sib koom ua ke ntawm siab - kub resistant thermocouple qauv thiab lub hom phiaj calibration cycles raws li qhov tseeb ua hauj lwm kub tuaj yeem ua kom tau qhov zoo ntawm cov cua sov ceramic thiab ua tiav ntev -lub sij hawm ruaj khov precision kub tswj rau engineering yas ua.
