Engineering structural ceramic cov ntaub ntawv muaj cov khoom zoo xws li kub tsis kam, siab zog, siab hardness, hnav tsis kam, oxidation tsis kam, thiab corrosion kuj. Lawv tau siv dav hauv aerospace, hluav taws xob hluav taws xob, hluav taws xob, thiab kev thauj mus los, dhau los ua cov ntaub ntawv txhawb nqa tseem ceeb rau kev txhim kho kev lag luam thiab kev tiv thaiv. Txawm li cas los xij, lub hauv paus brittleness ntawm ceramics ua rau lawv nyuaj rau txheej txheem, cuam tshuam cov fabrication ntawm loj - loj, complex- zoo li cov Cheebtsam thiab txwv lawv ntxiv kev thov thiab kev loj hlob. Metallized Ceramics muab kev siv thev naus laus zis tseem ceeb rau qhov teeb meem no.
Cov khoom siv hlau muaj chav zoo heev - qhov kub thiab txias, ductility, hluav taws xob conductivity, thiab thermal conductivity, ua kom muaj kev sib raug zoo nrog cov ntaub ntawv ceramic nyob rau hauv cov nqe lus ntawm kev ua tau zoo. Kev sib xyaw ntawm ob cov ntaub ntawv no tso cai rau kev siv tag nrho ntawm lawv cov khoom zoo tshaj plaws, ua rau kev tsim khoom ntawm cov khoom sib txuam uas ua tau raws li cov kev xav tau tshwj xeeb. Qhov no tsis yog tsuas yog txo cov nqi xwb tab sis kuj tseem txhawb nqa kev siv thiab kev tsim cov khoom siv ceramic thiab hlau. Vim muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg ntawm cov ceramics thiab hlau, lawv koom nrog tau dhau los ua ib qho kev tshawb fawb kub rau cov kws tshawb fawb hauv tsev thiab txawv teb chaws. Metallized ceramic Cheebtsam yog lub luag haujlwm tseem ceeb rau kev ua tiav kev sib koom ua ke.
Teeb meem hauv kev koom nrog Ceramics thiab Hlau
Cov ntawv cog lus ntawm ceramics thiab hlau sib txawv, ua rau nws nyuaj rau kev ua tiav zoo metallurgical kev sib txuas.
Qhov sib txawv loj hauv coefficients ntawm thermal expansion ntawm ceramics thiab hlau yooj yim ua rau muaj kev ntxhov siab loj ntawm qhov sib koom ua ke, uas ua rau muaj zog sib koom ua ke.
Cov dej tsis zoo ntawm cov nplais ceramic ua rau nws nyuaj rau kev txiav txim siab txog kev sib koom ua ke. Tam sim no, muaj ntau txoj kev tshawb fawb txog kev koom nrog ceramics thiab hlau, suav nrog kev sib koom ua ke, kev sib koom ua ke, kev sib koom ua ke, kev sib txuas, khoom siv-theem diffusion koom, cov kua hloov pauv hloov pauv{2}}theem koom, fusion vuam, tus kheej- nthuav tawm siab-kub synthesis koom, sib koom ua ke, sib koom ua ke ultrasonic. Cov thev naus laus zis no tuaj yeem siv rau kev npaj thiab sib dhos ntawm Precision Metallized Alumina Ceramic Cheebtsam.
Kev Koom Tes
Kev sib koom ua ke yog ib qho kev koom ua ke thaum ub, suav nrog kev sib koom ua ke thiab cua sov-shrinking. Thaum tshav kub kub-shrinking koom siv qhov sib txawv ntawm thermal expansion ntawm ceramics thiab hlau. Thaum qhov kub thiab txias, cov hlau tau muab tso rau saum cov ceramic, thiab cov hlau yuav shrinks ntau dua thaum lub caij txias, ua rau muaj kev sib txuas ceev. Thaum tshav kub- cov pob qij txha muaj qee qhov airtightness, lawv daim ntawv thov raug txwv rau qhov kub thiab txias, thiab lawv pom muaj kev ntxhov siab tseem ceeb. Yog li, lawv feem ntau tsis siv rau siab -Alumina Metallized Ceramics.
Adhesive bonding siv cov nplaum los koom nrog ceramics thiab hlau. Nws yog feem ntau siv hauv kev kho dav hlau thaum muaj xwm txheej ceev, kev sib txuas cov khoom siv sib txuas rau cov phom loj thiab cov cuaj luaj, thiab kho cov turbine thiab compressor rotors. Txawm hais tias cov nplaum nplaum tuaj yeem txo qhov kev ntxhov siab ntawm cov ceramics thiab hlau rau qee qhov thiab yog qhov yooj yim thiab siv tau, qhov sib koom ua ke lub zog yog feem ntau tsawg dua 100 MPa, thiab qhov kev ua haujlwm kub feem ntau qis dua 200 degree. Nws feem ntau yog siv rau kev thauj khoom zoo li qub thiab ultra- tsis tshua muaj qhov chaw thauj khoom zoo li qub, thiab rau Precision Metalized Ceramics, nws tsuas yog tsim nyog rau cov uas tsis yog -load- cov kab ke kev ua haujlwm.
Brazing yog ib txoj hauv kev zoo tshaj plaws rau kev koom nrog ceramics thiab hlau. Nws siv cov hlau muab tub lim nrog lub melting point qis dua lub hauv paus hlau, rhuab mus rau ib tug kub me ntsis saum nws melting point. Lub molten muab tub lim hlau ntub rau saum npoo ntawm cov ntaub ntawv tau koom nrog, sau qhov sib koom ua ke. Kev sib txuas yog ua tiav los ntawm kev sib tshuam ntawm cov ntsiab lus ntawm lub hauv paus hlau thiab cov hlau muab tub lim. Ordinary hlau brazing muab tub lim hlau pom tsis zoo wettability ntawm ceramic nto. Yog li ntawd, kev txhim kho cov wettability ntawm cov hlau muab tub lim rau ntawm cov khoom siv ceramic yog qhov tseem ceeb rau kev tau txais cov- cov pob qij txha zoo, thiab qhov no yog qhov tseem ceeb hauv kev tsim ntawm Metallized Alumina Ceramics rau Cov Hluav Taws Xob Cov Hluav Taws Xob. Ceramic- hlau brazing kev sib txuas tuaj yeem muab faib ua brazing ncaj qha thiab tsis ncaj qha brazing.
Cov teeb meem tseem ceeb ntawm cov ceramics txhim khu kev qha-kev sib txuas hlau tuaj yeem daws tau los ntawm kev teeb tsaMetalized ceramics rau cov khoom siv hluav taws xob. Peb cov khoom, los ntawm kev kho deg metallization, ho txhim kho lub wettability, kev sib txuas lub zog, thiab kev sib txuas ruaj khov ntawm ceramic thiab hlau, zoo txo cov kev ntxhov siab ntawm qhov sib koom ua ke. Lawv tau sib xws nrog ntau yam kev sib koom ua haujlwm siab xws li brazing thiab diffusion vuam, ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm hnyav xws li kub, muaj zog corrosion, thiab siab loads, muab ruaj khov thiab txhim khu kev qha tivthaiv kev daws teeb meem rau siab -kawg khoom tsim.
Peb zoo siab tos txais cov neeg siv khoom los ntawm txhua qhov chaw los tiv tauj peb rau kev nug, kev daws teeb meem, thiab yuav khoom siab -zoo Metallized Ceramics.
tiv tauj peb
