Kev Tiv Thaiv Kev Tiv Thaiv Kab Mob Ceramic Heaters: Mechanical Brittleness thiab Gap Pollution Induced Thermocouple System Error Solutions
Txawm hais tias ceramic band heaters muaj irreplaceable siab - kub rwb thaiv tsev thiab precision kub tswj qhov zoo, lawv cov yam ntxwv ntawm tus yam ntxwv kuj coj tshwj xeeb siv cov kev txwv thiab tsis ua hauj lwm txaus ntshai. Hauv kev lag luam kev lag luam tiag tiag, ntau yam khoom siv tsis ua haujlwm thiab cov khoom siv thermocouple tsis raug ntawm cov tshuab cua sov ceramic tsis yog los ntawm cov khoom lag luam teeb meem, tab sis los ntawm kev teeb tsa tsis tsim nyog, kev saib xyuas thiab kev hloov pauv ib puag ncig. Qhia meej txog qhov teeb meem ntawm cov khoom siv hluav taws xob ceramic thiab cov phiaj xwm kev zam kom tsis txhob muaj peev xwm ua kom lub neej ua haujlwm tau zoo thiab ua kom ntev -lub sij hawm ntsuas kub ntsuas qhov ntsuas kub hauv siab - qhov kub thiab txias ua haujlwm.
Qhov tseem ceeb tshaj plaws kev txwv ntawm ceramic band heaters yog cov neeg kho tshuab brittleness ntawm ceramic rwb thaiv tsev cov cab kuj. Kev lag luam siab - cov ntaub ntawv ceramic zaus muaj qhov ua tau zoo heev -kub hluav taws xob ua haujlwm, tab sis lawv qhov cuam tshuam tsis kam thiab extrusion tsis muaj zog. Nyob rau hauv cov txheej txheem ntawm cov khoom siv disassembly, kev saib xyuas thiab kev cob qhia txhua hnub, kev sib tsoo me ntsis, extrusion thiab dabtsi yog khoov yuav ua rau ceramic thaiv tawg, tev thiab kev puas tsuaj hauv zos. Kev puas tsuaj ceramic rwb thaiv tsev yuav tsim cov hluav taws kub tsis sib xws ntawm qhov chaw tuag, uas ua rau muaj kev cuam tshuam thermal teb. Qhov hloov pauv thermal teb gradient yuav cuam tshuam ncaj qha rau cov ntaub ntawv ntsuas thermocouple, tsim qhov ntsuas qhov ntsuas kub ruaj khov uas nyuaj rau tshem tawm los ntawm calibration.
Lub segmented splicing los ua ke qauv ntawm ceramic heaters yuav inevitably tsim me me qhov sib txawv. Qhov sib txawv ntawm cov qauv sib txuas tsis sib luag ntawm cov cam khwb cia txhuas cov cua sov, cov qhov sib txawv ntawm qhov sib txawv no dhau los ua txoj hauv kev rau kev cob qhia cov pa phem kom nkag mus. Hauv kev ua haujlwm ib puag ncig nrog cov roj fume hnyav, cov plua plav siab thiab cov nag lossis daus tsis zoo, cov pa phem yuav txuas ntxiv mus rau hauv qhov sib txawv ntawm cov cua sov ceramic. Ntev-lub sij hawm siab-kub carbonization ntawm impurities yuav hloov lub zos thermal kuj thiab rwb thaiv tsev kev ua tau zoo, ua rau maj mam thermal teb attenuation thiab qeeb drift ntawm thermocouple ntsuas ntsuas ntsuas ntsuas.
Raws li qhov ntev -cov ntaub ntawv saib xyuas lub sijhawm, cov qauv tsis ua haujlwm ntawm cov cua sov ceramic yog cov concentrated heev. Kev sib tsoo tshuab ua kom puas tsuaj rau ntau dua 60% ntawm qhov ua tsis tiav thaum ntxov, thiab qhov sib txawv ntawm cov khoom ua paug rau cov neeg laus cov nyiaj rau ntau dua 30% ntawm kev ua haujlwm ntev - lub sij hawm txo qis. Feem ntau cov txheej txheem thermocouple yuam kev sib piv cov khoom siv hluav taws xob ceramic yog muab los ntawm ob qho kev ua haujlwm tsis zoo no, tsis yog qhov ntsuas qhov ntsuas thiab ntsuas qhov ntsuas kub tsis ua haujlwm. Kev ua haujlwm tau zoo thiab kev saib xyuas tuaj yeem zam tag nrho cov kev phom sij zais.
Lub hom phiaj ntawm qhov kev sim ntsuas qhov ntsuas ntsuas ntsuas qhov kev hloov pauv ntawm cov khoom siv hluav taws xob hauv cov khoom siv hluav taws xob hauv kev cuam tshuam thiab kev ua haujlwm muaj kuab paug, thiab tshuaj xyuas qhov cuam tshuam nrog kev ntsuas ntsuas qhov yuam kev:
|
Kev ua haujlwm tsis zoo |
Degree kev puas tsuaj |
Thermal Uniformity Attenuation |
Thermocouple Systematic yuam kev |
Kev ua tau zoo rov qab nyuaj |
|---|---|---|---|---|
|
Mechanical sib tsoo me ntsis |
Local Ceramic Crack |
9.7% |
0.8 degree |
Nyuaj |
|
Nruab nrab roj Fume Accumulation |
Gap Carbon Deposition |
6.2% |
0.5 degree |
Yooj yim (Tom qab ntxuav) |
|
Hnyav Extrusion Deformation |
Loj Cheeb Tsam Peeling |
22.4% |
1.9 degree |
Irrecoverable |
Cov ntaub ntawv ntsuam xyuas kom meej meej txhais cov kev pheej hmoo ntawm cov khoom siv hluav taws xob ceramic. Kev puas tsuaj rau kev sib tsoo tshuab yog irreversible thiab yuav ua rau kev tswj qhov kub thiab txias mus tas li, thaum qhov sib txawv ntawm cov pa phem tuaj yeem tswj tau thiab tuaj yeem tshem tawm los ntawm kev saib xyuas tsis tu ncua. Kev ua haujlwm txhua hnub thiab kev saib xyuas yuav tsum tsom mus rau kev tiv thaiv - kev tiv thaiv kev sib tsoo thiab kev tu qhov sib txawv. Tsis txhob ua nruj ua tsiv thiab kev siv tshuab extrusion thaum lub sij hawm installation thiab txij nkawm. Tsis tu ncua ntxuav sab hauv splicing qhov sib txawv kom tshem tawm cov pa roj carbon deposits thiab roj stains, thiab tswj cov txheej txheem kev ncaj ncees thiab thermal teb stability.
Rau cov kev cob qhia uas muaj kuab paug ib puag ncig hnyav thiab muaj kev pheej hmoo ntawm kev sib tsoo siab, cov phiaj xwm kev ua kom zoo tuaj yeem raug coj los siv. Ntxiv cov baffles tiv thaiv sab nraud kom tsis txhob cuam tshuam ncaj qha. Tsim kev tu thiab tu lub voj voog kom tsis tu ncua kom tshem tawm cov pa paug. Sib phim lub sij hawm thermocouple micro-calibration kom tshem tawm qhov yuam kev me me. Kev tswj xyuas kev ua haujlwm zoo tuaj yeem ua rau lub neej ua haujlwm siab tshaj plaws thiab qhov zoo ntawm cov khoom siv hluav taws xob ceramic hauv siab - qhov kub thiab txias.
