Ua npuas ncauj tej hub lim dej yog lub cim thib peb cov dej txeem ua cov khoom zoo tom qab cov kab ua khoom zoo nkauj thiab cov zib ua kom zoo nkauj. Nws muaj peb seem sib txuas network pob txha thiab los ntawm qhov. Nws cov porosity yog qhov siab, nce txog 70-95%, thiab nws qhov kev nqus tshwj xeeb yog me me, tsuas yog 0.3 -0.6g. / Nyob rau tib lub sijhawm, nws kuj muaj cov yam ntxwv ntawm kev tsis kam, siab zog, siab kub tsis kam, tiv thaiv corrosion, zoo thermal poob siab thiab zoo tshaj tawm adsorption kev ua tau zoo.
Raws li cov kev xav tau sib txawv, ua npuas ncauj honeycomb ceramics tuaj yeem ua cov alumina, zirconia corundum mullite, mullite thiab cordierite thiab lwm yam ntaub ntawv, siv dav hauv metallurgy, casting, tshuaj lom neeg kev lag luam, kev tiv thaiv ib puag ncig, teeb pom kev lag luam, khoom noj khoom haus thiab lwm yam lag luam. Nws cov kev thov tshwj xeeb yog: ua npuas ncauj ua kom zoo nkauj ua kom zoo nkauj tuaj yeem ua rau molten hlau kua lim, tuaj yeem tshem tawm cov oxide sib xyaw rau hauv cov yaj, thiab ntxuav cov yaj, uas ua rau qhov no qhov teeb meem saum npoo xws li dub pob, xuab zeb qhov thiab qhov cua ntawm lub cov khoom lag luam xws li cov hlau nrum, cov kav nrum thiab cov nrum pov thawj yog qhov txo qis dua, qhov kev du ntawm cov khoom lag luam tau pom tseeb dua, thiab qib thiab qhov zoo ntawm cov khoom tau zoo heev. Ua npuas ncauj honeycomb ceramics tuaj yeem siv rau lim thiab lim cov kev sib xyaw rau hauv qhov kub lub zog, kom qhov hnyav suav nrog, tag nrho cov pa oxygen thiab cov lej ntawm cov cheeb tsam yuav txo tau kom tsawg, yog li txhawm rau txhim kho qhov zoo ntawm cov hlau thiab pob. Tsis tas li ntawd, ua npuas ncauj honeycomb ceramics kuj tseem tuaj yeem ua rau lwm hom tshuaj lom neeg lim, hlau yaj lim, lim roj, catalyst nqa khoom, duab hloov ua duab tshav kub, khoom cua kub hloov khoom, on-line mixers, dispersing kav, thermal rwb thaiv tsev tsim hluav taws xob thiab lwm yam khoom, thiab siv los ua cov khoom ntim tawm hauv cov hlau tiv thaiv kev tiv thaiv thiab cov yees ua pa.
Pom mechanism ntawm ua npuas ncauj ceramic lim:
Rectifying effect: tom qab tso cov ua npuas ua npuas ua kua dej hauv cov txheej txheem casting, qhov tsis kam ntawm cov hlau ua kua ntws nce, cov kua hlau hloov pauv qhov ntws tawm hauv cov txheej txheem casting, thiab cov kua ntws tuaj yeem ntws qeeb mus rau cov pwm kab noj hniav raws qhov ua haujlwm casting , yog li tam sim no eddy tam sim no tsis yooj yim rau tsim, kom cov kua hlau hloov los ntawm cua hlob mus rau laminar txaus, thiab cov pwm txhaws tseem ruaj khov, thiab slag thaiv cov haujlwm ntawm qhov ua haujlwm casting yog ua si.
Kev tshuaj xyuas tshuab: muaj ntau ntau ntawm oxide suav nrog, slag thiab lwm qhov tsis txaus ntawm cov hlau ua kua. Coob tus ntawm kev suav tau tuaj yeem sieved los ntawm kev siv tshuab los ntawm xaiv cov pore loj haum ua npuas ncauj ceramic lim.
Lim cov ncuav mog qab zib tshuab: ua npuas dej ua npuas av lim tau zoo tuaj yeem tiv thaiv cov slag vim tias nws muaj peb-txheej mesh qauv. Ntau cov impurities loj dua qhov lub qhov lim dej yog nyob ntawm qhov nkag ntawm lub taub lim. Nrog rau qhov nce ntawm cov neeg suav tsis tau suav nrog," lim ncuav mog qab zib" tsim ntawm kev suav loj yog tsim nyob rau saum npoo ntawm qhov ntxig ntawm lub qhov ntxaij lim dej. Lub lim ncuav mog qab zib ua rau cov dej ntws tawm zoo, yog li cov kab ntawv me dua qhov ntxaij me me ntawm lub vijtsam lim tau qee qhov ntawm" lim ncuav mog qab zib" Cov. Qhov seem uas tsis muaj lawm nws tus kheej muaj cov lim dej num, uas yog kev txhawb nqa dej kom sib haum.
Adsorption mechanism: ua npuas ncauj ceramic lim muaj qhov chaw loj hauv cheeb tsam, uas zoo rau adsorbing ntau ntawm cov ntawv me me. Vim yog qhov nyiam ntawm lub yaj, cov kua cais sib cais los ntawm cov hlau mesh. Hom adsorption no mas tsis yog xaiv ntau txheej txheej lub cev adsorption, yog li ntawd cov chaw sib koom ua ke txheej los ntawm txheej ntawm cov kab lim kom txog thaum nws txhaws.
