Nyob rau hauv ib qho cam khwb cia-nyob rau hauv aluminium cua sov platen, nyias nyias ceramic insulator cais cov nyob tiv thaiv hlau los ntawm lub cev hlau. Qhov kev tiv thaiv kev nyab xeeb tseem ceeb no tseem ntxiv cov thermal tiv thaiv uas cuam tshuam ncaj qha rau qhov kub ntawm cov hlau khiav thiab qhov sib txawv ntawm qhov kub thiab txias li cas. Qhov ntsuas kub poob thoob plaws txheej txheej ceramic, txawm tias tsuas yog ob peb millimeters tuab, yog qhov kev tsim qauv tseem ceeb uas cuam tshuam rau platen kev ua tau zoo thiab sib xws.
Lub luag haujlwm ntawm Ceramic Rwb thaiv tsev hauv Cast-In Platen Design
Ceramic los yog magnesium oxide (MgO) rwb thaiv tsev feem ntau yog siv hauv cam khwb cia-hauv platens rau hluav taws xob cais cov cua sov thaum tswj xyuas cov thermal hloov pauv tau zoo. Nrog rau cov thermal conductivity kwv yees li ntawm 1-5 W / m·K, cov khoom ua cua sov zoo dua li huab cua tab sis tseem qhia txog qhov ntsuas qhov ntsuas kub.
Hauv kev xyaum, lub rhaub ua haujlwm ntawm kwv yees li 5 W / cm² nrog 1 hli ceramic txheej tuaj yeem ntsib qhov kub poob ntawm 5-10 degree. Qhov kev poob no yuav tsum tau suav rau hauv kev tsim lub tshuab rhaub, xav kom cov hlau tsis kam khiav me ntsis kub dua li qhov ntsuas kub ntawm lub platen.
Cov yam ntxwv zoo sib xws
Qhov loj ntawm qhov kub thiab txias poob thoob plaws cov rwb thaiv tsev ceramic yog cuam tshuam los ntawm ntau yam:
Watt ceev ntawm cov khoom cua sov: Lub zog saum npoo siab dua ua rau qhov kub thiab txias gradient hla cov rwb thaiv tsev.
Thickness ntawm ceramic txheej: Ib txheej thicker ua rau kom kub poob linearly.
Thermal conductivity ntawm rwb thaiv tsev: Lower conductivity amplifies qhov poob, whereas denser los yog purer ceramic txo nws.
Kev sib raug zoo tuaj yeem qhia tau yooj yim xws li:
ΔT∝Watt density × ThicknessThermal conductivity\\Delta T \\propto \\frac{\\text{Watt density} \\times \\text{Thickness}}{\\text{Thermal conductivity}} ΔT∝Thermal conductivityWatt ntom × Thickness
Qhov kev sib npaug no qhia txog vim li cas txawm tias ib txheej nyias yuav tsum tau tswj xyuas kom muaj qhov sib xws ntawm thermal.
Kev cuam tshuam ntawm Ceramic Uniformity rau qhov kub thiab txias
Cov txheej tsis pom ceramic teeb tsa lub thermal theem rau tag nrho cov platen. Variations nyob rau hauv thickness los yog ceev yuav ua rau lub zos kub sib txawv ntawm qhov chaw. Piv txwv li, ib cheeb tsam me me nrog me ntsis tsawg dua ceramic compaction tuaj yeem pom qhov kub qis dua, ua rau cov kab kub kub ncaj qha saum qhov tsis sib xws. Hloov pauv, ntu tuab lossis tuab tuaj yeem tsim qhov chaw txias dua.
Kev tswj xyuas qhov kub thiab txias poob ceramic rwb thaiv tsev cam khwb cia platen uniformity yog li qhov tseem ceeb rau cov cua kub zoo ib yam. Siab -kev tsim khoom zoo, xws li kev tswj cov khoom siv ceramic thiab cov txheej txheem casting, xyuas kom cov tuab tuab thiab ntom. Thermal finite element analysis (FEA) feem ntau yog siv los xyuas kom meej tias cov txheej txheem sab hauv yuav tsis tsim cov chaw kub kub lossis cov chaw txias.
Qhov taw qhia ntawm Thermal Quality
Ib txheej txheej txheej rwb thaiv tsev ceramic tsis yog tsuas yog tiv thaiv hluav taws xob tsis ua haujlwm xwb tab sis kuj tseem ua tus qauv rau tag nrho cov platen thermal zoo. Surface uniformity yog ib qho kev cuam tshuam ncaj qha ntawm kev tsim kho sab hauv, ua rau cov txheej txheem ceramic yog qhov zais tsis tau tseem ceeb rau kev ua haujlwm.
Tsim kev txiav txim siab thiab cov qauv kev nyab xeeb
Cam khwb cia- nyob rau hauv cov cua kub platens yuav tsum ua raws li qhov tsawg kawg nkaus ceramic thickness qauv kom ua tau raws li cov kev cai ntawm kev nyab xeeb hluav taws xob. Qhov kev xav tau no yog tsim kom muaj thermal barrier, tab sis qhov barrier tseem tswj tau yog tias muaj kev sib koom ua ke. Los ntawm ua tib zoo ntsuas watt ntom, rwb thaiv tsev tuab, thiab cov khoom siv hluav taws xob, cov neeg tsim khoom tuaj yeem ua tiav ob qho tib si kev nyab xeeb thiab cov cua kub zoo ib yam.
Xaus
Internal ceramic rwb thaiv tsev ntawm cam khwb cia- nyob rau hauv cov cua sov platen yog ib qho tsim nyog tab sis tswj tau thermal barrier. Nws cov uniformity ncaj qha dictates qhov kub thiab txias sib xws, hais txog tias dab tsi nyob hauv qab ntawm qhov chaw kawg txiav txim siab pom kev ua haujlwm. Hauv kev xyaum, kev tswj xyuas nruj ntawm ceramic thickness thiab ntom, ua ke nrog thermal validation, xyuas kom meej tias kub poob ceramic rwb thaiv tsev cam khwb cia platen uniformity txhawb txhim khu kev qha thiab meej cua sov thoob plaws platen nto.
