Cov ntaub ntawv refractory yog cov ntaub ntawv uas muaj hluav taws kub heev uas tuaj yeem tiv taus yaig thiab hnav nyob rau hauv qhov chaw kub thiab txias thiab ua kom ruaj khov ntawm lub cev thiab tshuaj lom neeg. Hauv kev lag luam niaj hnub no, cov ntaub ntawv refractory tau siv dav hauv kev lag luam xws li metallurgy, kev tsim kho, aerospace, thiab electronics. Ntawm lawv, ceramic fiber hlua yog ib qho tseem ceeb heev refractory khoom, thiab nws cov txheej txheem ntau lawm kuj complex thiab ilv.
Ua ntej ntawm tag nrho cov, cov ntaub ntawv raw ntawm ceramic fiber ropes feem ntau yog fibers ua los ntawm high-purity alumina thiab silicate. Cov ntaub ntawv nyoos no yuav tsum tau muab sib xyaw ua ntej, crushed thiab tshuaj xyuas kom paub meej tias txhua yam ua tau raws li cov qauv tsim. Cov ntaub ntawv raw li no yuav raug xa mus rau qhov cub cua sov rau prefabrication.
Tag nrho cov txheej txheem prefabrication yog nqa tawm ntawm qhov kub thiab txias, thiab cov khoom siv raw feem ntau yuav tsum tau muab ci rau hauv qhov cub kub kub, uas yuav pab kom muaj kev ruaj ntseg thiab cov khoom siv kho tshuab. Thaum lub sij hawm ci, cov khoom siv raw yuav tsum tau nplawm thiab ua kom sov dua kom ntseeg tau tias cov ntaub ntawv tsis muaj cua lossis lwm yam impurities. Tom qab lub prefabrication tiav lawm, cov khoom yog muab tso rau hauv lub txias chamber rau tej yam ntuj tso cua txias kom tsis txhob kub hloov uas yuav ua rau cov khoom puas.
Tom ntej no yog cov txheej txheem extrusion molding. Feem ntau, cov prefabricated ceramic fibers tau muab tso rau hauv cov khoom siv tshwj xeeb extrusion, thiab cov khoom siv extruded rau hauv txoj hlua los ntawm kev sib xyaw ua ke ntawm kev kub siab thiab kub. Nws yog ib qho tsim nyog yuav tsum tau them sai sai rau txoj kab uas hla thiab qhov ntev ntawm txoj hlua thaum lub sij hawm extrusion txheej txheem los xyuas kom meej tias qhov loj thiab specification ntawm txoj hlua ua tau raws li cov qauv. Nyob rau tib lub sijhawm, qhov tsis sib xws ntawm extruder yuav tsum tau hloov kho tas li kom ntseeg tau qhov zoo thiab zoo ntawm txoj hlua.
Tom qab extrusion, ceramic fiber ropes yuav tsum tau ntxiv sintered los yog carbonized los txhim kho lawv cov hluav taws kub. Cov txheej txheem sintering heats cov khoom mus rau qhov kub thiab txias uas ua rau nws nyuaj dua thiab ruaj khov dua. Cov txheej txheem carbonization chars cov khoom ntawm qhov kub thiab txias, yog li txhim kho nws cov hluav taws kub thiab tshuaj stability.
Thaum kawg, cov hlua fiber ntau ceramic tau dhau los kuaj xyuas kom ntseeg tau tias nws ua tau raws li cov qauv khoom thiab tuaj yeem siv tau zoo hauv ntau qhov chaw. Cov txheej txheem kev kuaj pom muaj xws li kuaj cov hlua lub zog, tiv thaiv tshav kub, qhov tseeb qhov tseeb, thiab lwm yam.
Yuav kom suav tau, cov txheej txheem ntawm cov hlua fiber ntau ceramic yog qhov nyuaj heev thiab muag heev, yuav tsum tau tsim ntau yam txheej txheem. Cov yam ntxwv xws li nws qhov loj me, qhov zoo thiab qhov hluav taws kub tsis kam yuav tsum tau tswj hwm nruj kom ntseeg tau tias nws tuaj yeem siv tau zoo hauv ntau qhov chaw.
