Los txiav txim qhov zoo ntawmsiab alumina refractory cib, peb tuaj yeem pib los ntawm cov hauv qab no:
Kev tshuaj xyuas qhov tshwm sim: nto flatness thiab smoothness: high-zoo aluminium refractory bricks yuav tsum muaj ib tug ca thiab du nto, tsis pom tseeb unevenness los yog ntxhib granularity. Nyob rau hauv txoj kev no, nws tuaj yeem haum zoo dua thaum lub sij hawm masonry, txo qhov khoob, thiab txhim khu kev ruaj ntseg thiab sealing ntawm lub masonry.
Xim uniformity: Cov xim ntawm high-aluminium refractory cib feem ntau muaj feem xyuam rau cov ntsiab lus ntawm alumina hauv lawv. Feem ntau hais lus, qhov siab dua cov ntsiab lus alumina, cov xim dawb. High-aluminium refractory bricks nrog cov xim tsis sib xws txhais tau hais tias cov khoom siv raw yog sib xyaw ua ke, cov txheej txheem ntau lawm yog tswj tau zoo, thiab nws lub zog faib yuav zoo ib yam, thiab lub neej kev pab yuav ntev dua.
Cracks thiab pores: Ua tib zoo saib xyuas qhov chaw ntawm lub cev cib. Yuav tsum tsis txhob muaj cov kab nrib pleb, qhov pores, qhov tsua thiab lwm yam tsis xws luag. Kev tawg yuav ua rau lub zog thiab kev ncaj ncees ntawm cov pob zeb refractory tsis muaj zog, ua rau lawv tawg yooj yim thaum siv; ntau qhov pores yuav cuam tshuam rau qhov ntom ntawm cov cib refractory thiab txo lawv qhov kub thiab txias, corrosion thiab yaig.
Lub kaum ntse ntse: plaub lub ces kaum ntawm lub cib yuav tsum zoo, tsis muaj cov ces kaum los yog cov npoo, thiab cov npoo yuav tsum tsis tu ncua, txwv tsis pub nws yuav cuam tshuam rau qhov zoo ntawm masonry thiab lub zog ntawm lub masonry.
Cov ntsiab lus impurity: Tshawb xyuas cov impurities ntawm qhov chaw, xws li cov pob dub, qhov tsawg dua qhov zoo dua. Feem ntau ntawm cov impurities no yog hlau oxides, uas yog yooj yim txo kom molten hlau thiab ntws tawm nyob rau hauv lub kub kub ib puag ncig ntawm lub kiln, rhuav tshem cov qauv ntawm lub cib thiab shortening nws cov kev pab cuam lub neej.
Dimensional raug
Ua tau raws li cov kev cai tshwj xeeb: Siv tus pas ntsuas qhov ntev, qhov dav, tuab thiab lwm qhov ntev ntawm lub siab-aluminium refractory cib. Qhov sib txawv yuav tsum nyob rau hauv qhov kev kam rau ua ntau yam los xyuas kom meej qhov sib txuam thaum lub sij hawm masonry txheej txheem thiab xyuas kom meej qhov tseeb thiab stability ntawm lub masonry.
Kev kuaj lub cev ua haujlwm
Qhov ntom ntom: Qhov ntom ntom yog ib qho ntawm cov cim tseem ceeb rau kev ntsuas qhov zoo ntawm alumina refractory cib. Feem ntau hais lus, qhov siab dua qhov ntom, qhov ntom ntom ntawm lub cib lub cev, thiab nws lub zog, hnav tsis kam, kub tsis kam thiab yaig kuj feem ntau zoo dua. Qhov ceev tuaj yeem xam los ntawm qhov hnyav thiab ntim ntsuas.
Compressive zog: High-aluminium refractory bricks nrog lub siab compressive zog tuaj yeem tiv taus siab dua yam tsis muaj kev tawg lossis deforming yooj yim, thiab tuaj yeem sim siv lub tshuab ntsuas kev tshaj lij. Nyob rau hauv qhov kub thiab txias ib puag ncig, nws lub zog compressive yuav tsum tau ua raws li qhov yuav tsum tau siv los xyuas kom meej qhov kev ua haujlwm ntawm cov kiln thiab lwm yam khoom siv.
Pom tseeb porosity: Refractory bricks uas tsis tshua muaj porosity muaj zoo txhua yam muaj zog thiab hnav tsis kam, muaj zog yaig kuj, thiab tsis tshua muaj kev puas tsuaj los ntawm kev nkag mus ntawm slag los yog molten cov ntaub ntawv nyob rau hauv kub kub.
Refractory kev ua tau zoo
Refractory: Refractory yog hais txog lub peev xwm ntawm refractory cib kom muaj kev ruaj ntseg ntawm cov qauv thiab tiv thaiv melting ntawm qhov kub thiab txias, feem ntau qhia los ntawm softening kub ntawm refractory cone. Lub refractoriness ntawm high-aluminium refractory cib feem ntau yog siab tshaj 1770 degree. Qhov siab dua qhov refractoriness, qhov zoo dua.
Thermal shock stability: Thermal shock stability yog soj ntsuam los ntawm kev rov ua cua sov thiab txias cib sai sai los soj ntsuam seb lawv puas tawg lossis tev tawm. High-aluminium refractory bricks nrog zoo thermal shock kev ua tau zoo tuaj yeem tiv taus qhov kub thiab txias tsis tshua muaj kev puas tsuaj, thiab ruaj khov dua nyob rau hauv ib puag ncig nrog kub hloov pauv xws li kilns.
Load softening kub: Load softening kub yog qhov kub ntawm qhov refractory bricks deform thaum raug load ntawm kub. High-quality high-aluminium refractory bricks yuav tsum muaj ib tug siab load softening kub thiab muaj peev xwm tswj cov txheej txheem stability nyob rau hauv high kub thiab hnyav load.
Corrosion resistance: High alumina refractory bricks tuaj yeem cuam tshuam nrog ntau yam slags, gases thiab lwm yam tshuaj lom neeg thaum siv, thiab yuav tsum muaj corrosion kuj zoo. Los ntawm txoj kev xws li kev sim slag corrosion, nws lub peev xwm los tiv thaiv cov tshuaj corrosion tuaj yeem raug soj ntsuam. Refractory bricks uas muaj zog corrosion kuj yog cov zoo dua.
Tshuaj ntsuam xyuas muaj pes tsawg leeg
Cov ntsiab lus ntawm alumina: Cov ntsiab lus ntawm alumina (Al₂O₃) nyob rau hauv high-aluminium refractory bricks yog ib qho tseem ceeb cuam tshuam rau nws cov kev ua tau zoo. Cov ntsiab lus siab dua, qhov zoo dua qhov refractoriness, thermal shock kuj thiab lwm yam khoom feem ntau. Feem ntau high-aluminium refractory cib tuaj yeem muab faib ua ntau qib xws li 55%, 65%, 75%, thiab 85% raws li cov ntsiab lus alumina. Cov qib tsim nyog ntawm cov khoom tuaj yeem raug xaiv raws li qhov tshwj xeeb siv ib puag ncig thiab kev xav tau.
Cov ntsiab lus impurity: Ntau cov ntsiab lus impurity xws li hlau oxide thiab calcium oxide yuav txo cov refractoriness, corrosion resistance thiab mechanical zog ntawm refractory bricks. Yog li ntawd, tsis muaj impurity cov ntsiab lus yog ib qho ntawm cov yam ntxwv ntawm high-zoo alumina refractory bricks.
