Kev Ntsuam Xyuas Cov Txheej Txheem Ntau Lawm Ntawm Cov Purity Alumina Precision Advanced Ceramic Metallization Parts

High Purity Alumina Precision Advanced Ceramic Metallization Parts yog cov khoom lag luam raug tsim los ntawm molding thiab sintering siab -purity hmoov rau hauv siab- ntom ntom ceramic matrix, tom qab ntawd txheej txheej nrog hlau muab tshuaj txhuam thiab sintering nws thib ob kom ua tiav kev sib raug zoo ntawm cov ceramic thiab hlau. Cov khoom no tau siv dav hauv cov khoom siv semiconductor, lub tshuab nqus tsev hluav taws xob, cov khoom siv kho mob, thiab lub zog tshiab. Cov hauv qab no yog rau theem ntawm cov txheej txheem tsim khoom tseem ceeb.

 

 

Ultrafine -Al₂O₃ hmoov nrog purity ntawm 99.5% ~ 99.99% yog xaiv, thiab inorganic thiab organic impurities raug tshem tawm kom tsis txhob muaj microcracks thiab pores. Cov kab ntawm cov khoom siv sintering (xws li magnesium oxide thiab silicon dioxide) ntxiv, thiab cov sib tov yog nano-milled hauv cov organic hnyav. Tom qab ntawd, cov binders thiab dispersants tau ntxiv, thiab cov sib tov yog tshuaj tsuag -granulated kom tau ib tug hmoov nrog zoo flowability thiab uniform particle loj. Cov theem no muab cov khoom siv zoo - zoo matrix rau cov ceramic metallization tom ntej.

 

 

Cov txheej txheem molding yuav tsum raug xaiv raws li qhov nyuaj thiab qhov xav tau ntawm cov khoom siv: qhuav nias lossis txias isostatic nias (CIP) yog tsim rau cov blocks yooj yim lossis cov tubular qhov chaw; Kev txhaj tshuaj molding lossis casting yog tsim rau cov khoom tsis sib xws, cov ntawv nyias, lossis cov khoom siv microchannel nyuaj. Lub cev ntsuab tom qab molding yuav tsum muaj qhov ntom ntom kom txo tau sintering deformation. Rau cov khoom siv tubular xws li metallized cerebral insulating hlab, isostatic pressing feem ntau yog siv los xyuas kom meej cov phab ntsa tuab.

 

 

Lub cev ntsuab yog muab tso rau hauv ib lub qhov cub debinding thiab maj mam rhuab mus rau 400℃-600℃kom tshem tawm cov organic binder tag nrho (binder tshem tawm). Tom qab ntawd nws yog rhuab mus rau 1500℃-1700℃nyob rau hauv ib tug tiv thaiv cua sov cua sov los yog lub tshuab nqus tsev sintering rauv, qhov twg atomic diffusion fuses hmoov hais mus rau hauv ib tug siab - ntom, siab - lub zog, thiab tsis yog - ntxeem tau ceramic matrix. Lub sintered ceramics muab qhov ntom ntom rau cov khoom siv tom qab metallized ceramics.

 

 

Lub sintered siab -purity alumina muaj qhov hardness siab heev, yuav tsum tau cov cuab yeej pob zeb diamond rau kev sib tsoo, sab hauv thiab sab nraud cylindrical sib tsoo, thiab polishing kom tau raws li micron - lossis txawm nanometer - theem qhov ntev ntev thiab qhov xav tau ntawm qhov roughness. Rau cov qauv tshwj xeeb (xws li perforations thiab chamfers), ultrasonic lossis laser drilling yog siv. Cov kauj ruam no yog ib qho ntawm precision machining rau alumina ceramic qhov chaw, ncaj qha txiav txim siab qhov tseeb sib dhos zaum kawg.

 

Surface metallization yog cov txheej txheem tseem ceeb rau kev ua tiav cov ceramic - mus rau - hlau bonding. Ua ntej, ib qho kev muab tshuaj txhuam xws li molybdenum-manganese (Mo-Mn) yog npaj, thiab cov hmoov hlau refractory yog pob-milled nrog additives kom txog thaum homogeneous. Tom qab ntawd, muab tshuaj txhuam yog siv rau cov chaw ceramic kom sib koom ua ke siv kev tshuaj ntsuam luam ntawv lossis kev faib tawm precision. Thaum kawg, sintering yog ua nyob rau hauv hydrogen los yog tiv thaiv cua sov ntawm 1300℃-1500 degree, tso cai rau cov hlau txheej nkag mus rau hauv ceramic lis ciam teb, tsim ib tug muaj zog mechanical thiab tshuaj daim ntawv cog lus txheej, ua rau ib tug metallized ceramic tivthaiv.

 

 

Nickel yog electroplated mus rau metallized txheej (los yog tom qab kub / nyiaj plating) los txhim kho corrosion kuj thiab brazing kev ua tau zoo. Ultra-Lub tshuab nqus tsev siab helium huab hwm coj spectrometry leak detection, seem soj ntsuam, thiab adhesion thiab tensile kuaj yog tom qab ntawd ua kom ntseeg tau tias ua raws li cov qauv kev pabcuam raws li kev xav tau ntawm kev ua haujlwm. Cov khoom kawg, xws li Metallized Ceramic Housing for Power Semiconductors thiab HVDC contactor ceramic enclosures, yuav tsum dhau tag nrho cov kev ntsuam xyuas saum toj no.

 

 

Cov txheej txheem ntau lawm ntawmHigh Purity Alumina Precision Advanced Ceramic Metallization Partsnpog rau theem loj: hmoov ua, sib sau, sintering, precision machining, metallization, thiab electroplating xeem. Ntawm lawv, kev ruaj ntseg ntawm ceramic metallization tshuab ncaj qha txiav txim siab lub zog sealing thiab airtightness ntawm cov khoom, ua rau nws yog ib qho tseem ceeb irreplaceable txheej txheem nyob rau hauv teb xws li semiconductors thiab siab -voltage DC contactors.

 

 

Yog tias koj muaj kev xav tau rau High Purity Alumina Precision Advanced Ceramic Metallization Parts khoom, lossis yog tias koj xav nug txog cov txheej txheem kev hloov pauv, thov koj xav tiv tauj peb rau kev daws teeb meem.