Hauv kev nrhiav tsis tu ncua ntawm kev ua tiav hauv kev tsim khoom niaj hnub no, cov npoo ntawm qhov kev ua yuam kev poob qis mus rau qib -micron. Raws li kev lag luam xws li semiconductor fabrication, aerospace engineering, thiab cov cuab yeej kho mob siab tshaj plaws tau thawb cov ciam teb ntawm qhov ua tau ntawm lub cev, cov cuab yeej siv los ntsuas thiab siv tau cov khoom no yuav tsum hloov zuj zus nrog lawv. Tau ntau xyoo lawm, lub ntiaj teb metrology tau tso siab rau granite thiab hardened hlau ua lub hauv paus rau precision. Txawm li cas los xij, lub kiv puag ncig nyob ntsiag to tab tom tshwm sim, uas tau tsav los ntawm cov khoom siv uas muaj kev ruaj ntseg thiab ruaj khov tsis sib xws: advanced engineering ceramics. Los ntawm alumina thiab silicon carbide mus rau silicon nitride, cov cuab yeej ntsuas ceramic tau nrawm dhau los ua tus qauv kub rau kev lees paub qhov tseeb hauv lub ntiaj teb kev xav tau ntau tshaj plaws hauv cheeb tsam.
Unmatched Mechanical Stability thiab Rigidity
Tus yeeb ncuab tseem ceeb ntawm siab - ntsuas qhov tseeb yog deformation. Thaum lub ntsuas kab, tus pas ntsuas, lossis lub phaj saum npoo khoov txawm tias me ntsis hauv nws qhov hnyav lossis qhov hnyav ntawm kev sojntsuam txav, cov ntaub ntawv ua rau raug cuam tshuam. Qhov no yog qhov uas cov ceramics siab heev ua kom pom lub cev zoo dua li cov khoom siv ib txwm muaj.
Lub metric tseem ceeb ntawm no yog lub elastic modulus, los yog txhav. High-purity alumina thiab silicon carbide ceramics khav theeb elastic modulus li ntawm 300 txog 400 GPa. Txhawm rau muab qhov no rau hauv qhov kev xav, qhov no yog kwv yees li plaub mus rau tsib zaug nruj dua li cov khoom siv txhuas txhuas lossis granite, uas feem ntau hover ntawm 70 GPa. Hauv kev siv tswv yim, xws li tus choj txav ntawm Kev Sib Koom Tes Ntsuas Tshuab (CMM), qhov kev nruj nruj no txhais tau hais tias cov kab hluav taws xob ceramic muaj kev cuam tshuam zero deformation, txawm tias thaum tsiv ntawm kev kub ceev.
Cov qauv kev ncaj ncees no ncaj qha txhais mus rau qhov tseeb. Hauv cov txheej txheem hlau los yog granite, software yuav tsum tau them nyiaj tas li rau cov tshuab deflection thiab angular yuam kev. Nrog rau cov khoom siv ceramic, cov cuab yeej ua haujlwm yuam kev raug tshem tawm ntawm lub cev. Piv txwv li, siab -kawg ceramic CMMs tuaj yeem kaw qhov yuam kev angular kom qis li 2 arc- vib nas this. Tshaj ib qho -meter ntsuas, qhov no ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm tsuas yog 0.5 microns, txo qis qhov xav tau rau cov software nyuaj thiab ua kom ntseeg tau tias qhov ntsuas tau cuam tshuam qhov tseeb geometry ntawm ib feem.
Superior Thermal thiab Dimensional Stability
Precision ntsuas ib puag ncig yog tsis tshua muaj zoo meej. Qhov kub thiab txias nyob rau hauv lub Hoobkas lossis lub chaw kuaj mob tuaj yeem ua rau cov ntaub ntawv nthuav dav thiab kev cog lus, ua rau "thermal drift" uas rhuav tshem kev ntsuas kev ncaj ncees. Ceramics muaj cov coefficient tsawg heev ntawm thermal expansion- feem ntau yog ib nrab ntawm cov hlau tsis muaj steel thiab ruaj khov dua li txhuas.
Qhov thermal inertness no ua kom ntseeg tau tias cov npoo ncaj ncaj, square, lossis cov phaj saum npoo tuav nws qhov ntev tsis hais qhov me me ambient kub hloov. Tsis tas li ntawd, cov ceramics siab heev muaj kev tiv thaiv zoo rau "kev laus" lossis nkag mus. Tsis zoo li cov hlau uas tuaj yeem txo cov kev ntxhov siab sab hauv ntau xyoo ntawm kev siv, lossis granite uas tuaj yeem raug rau ntev - lub sij hawm ib puag ncig huab cua, siab - zoo sintered ceramics tuav lawv qhov ntev ntawm kev ruaj ntseg mus ib txhis. Qhov kev cia siab ntev ntev no txhais tau hais tias lub voj voog calibration feem ntau tuaj yeem txuas ntxiv mus, thiab cov cuab yeej tseem yog tus qauv siv kev ntseeg siab rau ntau xyoo lawm.
Hardness heev thiab hnav tsis kam
Hauv ib lub chaw kuaj xyuas tsis khoom lossis cov kab ntau lawm, cov cuab yeej ntsuas tau raug kev sib txhuam tsis tu ncua, tuav, thiab qee zaus muaj kev cuam tshuam. Hardness yog ib qho tseem ceeb hauv kev khaws cia qhov flatness thiab ncaj ntawm qhov ntsuas lub sijhawm.
Engineering ceramics yog cov ntaub ntawv nyuaj tshaj plaws rau txiv neej, nrog alumina ceramics ncav cuag Mohs hardness ntawm 9, thib ob tsuas yog pob zeb diamond. Qhov no ua rau lawv tshwj xeeb hnav tsis kam- feem ntau raug suav hais tias yog ob peb zaug tiv taus ntau dua li granite thiab zoo heev rau cov hlau. Ceramic nto phaj los yog ntsuas qhov thaiv yog qhov tiv taus rau khawb, dings, thiab tsim cov burrs uas tuaj yeem tshwm sim thaum cov cuab yeej hlau raug rub hla cov chaw softer.
Qhov no durability yog tshwj xeeb tshaj yog tseem ceeb nyob rau hauv cov kev siv dynamic. Piv txwv li, nyob rau hauv siab - ceev automated los ua ke los yog semiconductor wafer tuav, ceramic neeg hlau caj npab thiab kawg -effectors tsis tsim ib feem ntawm cov khib nyiab (particles) vim kev sib txhuam. Qhov "huv" tus cwj pwm hnav no yog qhov tseem ceeb rau kev tswj xyuas kev ncaj ncees ntawm ob qho tib si ntsuas thiab cov khoom siv rhiab.
Chemical Inertness thiab Zero Maintenance
Ib qho ntawm feem ntau - tsis pom zoo cov txiaj ntsig ntawm cov cuab yeej ntsuas ceramic yog lawv ua tiav kev tiv thaiv corrosion. Tsis zoo li cam khwb cia hlau los yog steel nto daim hlau, uas yuav tsum tau oiling li niaj zaus thiab ceev faj tu kom tsis txhob xeb, ceramics yog chemically inert. Lawv impervious rau cov kua qaub (tshwj tsis yog hydrofluoric acid), alkalis, thiab cov kuab tshuaj organic.
Qhov no ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev lag luam hnyav, xws li cov chaw ua tshuaj lom neeg lossis cov chaw ua haujlwm uas ntsuas qhov ntsuas tam sim tom qab ntxuav nrog cov tshuaj ntxuav tu nruj heev. Tsis tas li ntawd, ceramics tsis yog -sib nqus thiab hluav taws xob insulating. Hauv cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob semiconductor, qhov chaw sib nqus sib nqus lossis cov pa tawm zoo li qub tuaj yeem rhuav tshem microchips, cov cuab yeej ceramic muab qhov chaw ua haujlwm nyab xeeb, nruab nrab. Qhov tsis muaj kev saib xyuas yuav tsum tau ua - tsis muaj kev tiv thaiv xeb, tsis muaj kev tswj hwm tshwj xeeb ntawm cov av noo - txo qis tag nrho cov nqi ntawm cov tswv cuab thiab kev ua haujlwm poob qis.
Lightweight Efficiency rau Automation
Thaum cov ceramics yog ntom, niaj hnub tsim cov tswv yim tso cai rau kev tsim cov hollow los yog optimized lug uas yog ho sib zog dua lawv cov khoom granite los yog steel counterparts ntawm tib lub ntim. Qhov kev nruj nruj no-rau- qhov hnyav piv yog ib qho kev ua si- hloov pauv rau kev ntsuas ntsuas ntsuas.
Hauv automated CMMs thiab robotic soj ntsuam hlwb, sib zog txav qhov chaw txhais tau tias tsawg inertia. Qhov no tso cai rau lub tshuab kom nrawm thiab nrawm nrawm dua yam tsis muaj kev vibration lossis overshoot. Qhov tshwm sim yog lub tshuab ntsuas uas tsis yog tsuas yog muaj tseeb tab sis kuj tseem ceeb dua thiab ua haujlwm zoo dua. Los ntawm kev txo cov kev txav mus los, cov tuam txhab lag luam tuaj yeem ua tiav ntau dua hauv cov txheej txheem tshuaj xyuas yam tsis muaj kev cuam tshuam rau micron - qib precision yuav tsum tau rau kev ruaj ntseg zoo niaj hnub.
Kev Txiav Txim Siab: Kev Hloov Mus Rau Cov Khoom Siv Tshiab
Kev hloov ntawm cov ntaub ntawv ib txwm siv mus rau qib siab ceramics hauv metrology sawv cev rau kev hloov pauv ntawm "kev them nyiaj rau qhov tsis raug" mus rau "tshem tawm qhov yuam kev ntawm qhov chaw." Thaum granite thiab cam khwb cia hlau tau txais kev pabcuam kev lag luam zoo, cov ntaub ntawv thiab micro- hnub nyoog tsim khoom xav tau qib siab dua ntawm kev ua haujlwm.
Ceramic ntsuas cov cuab yeej-txawm tias lawv yog cov cuab yeej ntsuas yooj yim, cov kab CMM nyuaj, lossis cov npoo ncaj ncaj- muab kev sib xyaw tshwj xeeb ntawm qhov tawv nqaij, thermal stability, hnav tsis kam, thiab tshuaj lom neeg tsis muaj zog uas tsis muaj cov khoom siv ib txwm tuaj yeem sib phim. Rau kev lag luam uas qhov sib txawv ntawm ib qho micron tuaj yeem txhais tau tias qhov sib txawv ntawm kev ua tiav thiab tsis ua haujlwm, kev siv tshuab ceramic tsis yog kev hloov kho xwb; nws yog ib qho tsim nyog evolution los lav qhov tseeb, unwavering precision.