1. Kev npaj hmoov
Cov khoom siv txhuas oxide hmoov tau npaj rau hauv cov ntaub ntawv hmoov raws li cov khoom sib txawv thiab cov txheej txheem molding sib txawv. Lub particle loj ntawm cov hmoov yog 1 μ Yog hais tias lub purity ntawm high-purity aluminium oxide ceramic khoom yog tsawg dua 99.99 feem pua, nws kuj yuav tsum tau ultra-nplua crushed thiab nws particle loj faib yog uniform. Thaum extrusion molding los yog txhaj tshuaj molding yog saws, binder thiab plasticizer yuav tsum tau nkag mus rau hauv cov hmoov. Feem ntau, thermoplastic yas los yog resin organic binder nrog qhov hnyav piv ntawm 10-30 feem pua yuav tsum sib xyaw nrog txhuas oxide hmoov ntawm qhov kub ntawm 150-200 los pab txhawb kev ua haujlwm molding. Cov hmoov raw cov ntaub ntawv tsim los ntawm kub nias txheej txheem tsis tas yuav ntxiv binder. Yog tias semi-automatic lossis tag nrho-automatic qhuav nias molding tau txais yuav, muaj cov txheej txheem tshwj xeeb rau cov hmoov, thiab cov hmoov yuav tsum tau kho nrog cov tshuaj tsuag granulation kom nws kheej kheej, thiaj li txhim kho cov hmoov fluidity thiab pab kom tsis siv neeg sau. ntawm phab ntsa pwm thaum molding. Tsis tas li ntawd, txhawm rau txo qhov kev sib txhuam ntawm cov hmoov thiab cov phab ntsa tuag, 1-2 feem pua cov roj nplua nyeem, xws li stearic acid thiab nplaum PVA, yuav tsum tau ntxiv.
Rau qhuav xovxwm molding, cov hmoov yuav tsum tau tshuaj tsuag granulated, nyob rau hauv uas polyvinyl cawv yuav tsum tau qhia raws li lub binder. Ib qho dej-soluble paraffin tsim los ntawm lub koom haum tshawb fawb hauv Shanghai yog siv los ua cov ntaub ntawv ntawm Al203 spray granulation, uas muaj fluidity zoo nyob rau hauv cua sov. Cov hmoov tom qab tshuaj tsuag granulation yuav tsum muaj zoo fluidity, xoob ntom thiab ntws lub hnub so kom tsawg dua 30 degree. Cov particle loj piv yog qhov zoo tagnrho, kom tau txais cov xim ntsuab ntau dua.
2. Txoj kev tsim
Cov txheej txheem tsim ntawm alumina ceramic cov khoom suav nrog qhuav nias, grouting, extrusion, txias isostatic nias, txhaj tshuaj, daim kab xev casting, kub nias thiab kub isostatic nias. Nyob rau hauv xyoo tas los no, lim pressing, ncaj qha solidification txhaj molding, gel txhaj molding, centrifugal txhaj molding thiab khoom dawb molding tau tsim nyob rau hauv tsev thiab txawv teb chaws. Cov khoom sib txawv nrog cov duab sib txawv, qhov ntau thiab tsawg, cov duab nyuaj thiab qhov tseeb xav tau cov txheej txheem molding sib txawv.
