Lub hauv paus ntsiab lus thiab qhov zoo thiab qhov tsis zoo ntawm qhuav nias ntawm hnav-resistant ceramic vuas
Nyob rau hauv cov txheej txheem ntawm kev hnav-resistant ceramics, kev sib sau yog qhov txuas tseem ceeb heev, thiab feem ntau siv txoj kev tsim yog qhuav nias thiab isostatic nias. Niaj hnub no peb yuav tham txog lub hauv paus ntsiab lus, qhov zoo thiab qhov tsis zoo ntawm cov xovxwm qhuav.
Qhuav nias, tseem hu ua compression molding, yog ib qho ntawm feem ntau siv molding txoj kev. Nyob rau hauv cov txheej txheem ntawm kev hnav-resistant ceramics, qhuav xovxwm molding yog muab cov hmoov nrog zoo fluidity thiab haum particle loj tom qab granulation rau hauv cov hlau pwm kab noj hniav, thov lub siab los ntawm lub taub hau siab, thiab lub siab lub taub hau yog hloov nyob rau hauv lub pwm kab noj hniav. . Lub siab yog kis tau, yog li ntawd cov hmoov hais nyob rau hauv pwm kab noj hniav yog rearranged thiab deformed yuav tsum tau compacted, tsim ib tug ceramic ntsuab lub cev nrog ib tug tej yam lub zog thiab zoo.
Lub ntsiab lus ntawm qhuav nias yog tias nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, cov hais nyob ze rau ib leeg nyob rau hauv pwm, thiab cov hais yog nrees txuas los ntawm kev sib txhuam sab hauv kom muaj ib tug tej yam zoo li. Qhov kev sib txhuam sab hauv no ua rau cov txheej nyias nyias ntawm cov binder nyob ib puag ncig cov khoom uas nyob ze rau ib leeg.
Raws li lub siab nce, cov blanks yuav hloov cov duab, swb rau ib leeg, qhov sib txawv yuav txo, maj mam nce kev sib cuag, thiab lo rau ib leeg. Raws li cov khoom tau los ze zog, lub zog ntawm cov colloid molecules thiab cov khoom yog ntxiv dag zog, yog li lub cev ntsuab muaj qee yam kev siv zog.
Feature ntawm dry pressing:
qhov zoo
Cov txheej txheem qhuav nias yog yooj yim, yooj yim rau kev khiav lag luam, luv luv hauv lub voj voog, ua haujlwm siab, thiab yooj yim rau kev tsim khoom. Lub embryo lub cev ua los ntawm qhuav nias kuj muaj cov yam ntxwv ntawm siab ceev, meej me me, me me shrinkage, siab mechanical zog, thiab zoo hluav taws xob kev ua tau zoo.
ua tsis tau
Qhuav xovxwm molding yog ib qho nyuaj rau siv rau zus tau tej cov embryos loj, thiab cov pwm hnav ntau heev, cov txheej txheem yog nyuaj, tus nqi yog siab, thiab cov kev taw qhia ntawm lub siab yog ib tug kuj. Nws tuaj yeem tsuas yog nias nce thiab nqis, thiab lub siab faib tsis sib npaug, ua rau qhov tsis sib xws thiab qhov tsis sib xws ntawm lub cev embryo. , tawg thiab delamination yuav tshwm sim.
Dry pressing muaj cov yam ntxwv sib txawv thiab ntau yam kev siv. Raws li lub hauv paus ntsiab lus thiab cov yam ntxwv ntawm qhuav nias, peb tuaj yeem txhim kho cov txheej txheem hauv cov txheej txheem ntau lawm, thiab peb kuj tuaj yeem siv ntau tshaj isostatic pressing es tsis txhob qhuav nias los txhim kho hnav-resistant ceramics embryo lub cev zoo.
