Nyob rau hauv tus txheej txheem ntawm lub tsev refractory bricks, refractory motar feem ntau yog siv rau lub tsev, thiabrefractory cementsiv tsis tau rau lub tsev. Txawm hais tias ob qho tib si yog cov khoom siv refractory, muaj qhov sib txawv loj hauv cov txheej txheem thov tiag tiag.
Refractory av nkos, tseem hu ua hluav taws av nkos lossis cov khoom siv sib koom ua ke, yog cov khoom siv sib koom ua ke tshwj xeeb siv rau lub tsev refractory cib. Nws yog tsim los ntawm refractory hmoov thiab admixtures. Nws muaj cov yas zoo, kev tsim kho yooj yim, muaj zog sib txuas, muaj zog corrosion kuj, thiab siab refractoriness. Refractory cement, tseem hu ua aluminate cement lossis siab alumina cement, yog cov khoom tsim nyog rau kev npaj refractory castables. Nws feem ntau yog siv rau kev sib txuas ntawm cov hmoov hauv cov khoom siv refractory castables, thiab tuaj yeem ua kom tawv tawv refractory castables.
Cov laj thawj tseem ceeb vim li cas cov cement refractory tsis tuaj yeem siv rau lub tsev refractory bricks yog raws li hauv qab no:
1. Qhov sib txawv ntawm kev sib txuas thiab kev sib zog ntawm cov av nkos refractory thiab cov cement refractory. Refractory av nkos muaj cov yas zoo thiab cov khoom sib txuas, tuaj yeem tsim cov khoom siv ceramic ntawm qhov kub thiab txias, thiab muab lub zog txaus thiab ruaj khov. Cov khoom siv refractory cement muaj qhov sib txawv ntawm cov khoom sib txawv piv rau cov av nkos refractory, thiab nws txoj kev tawv tawv kuj txawv ntawm cov av nkos refractory. Refractories cement feem ntau yog cov khoom siv hydraulic cementing. 2. Txoj kev tsim kho ntawm cov av nkos refractory thiab cov cement sib txawv. Thaum tso cov cib refractory, cov av nkos refractory feem ntau yog tsim los ntawm cov txheej txheem ntub dej kom ntseeg tau tias muaj kev sib raug zoo ntawm cov cib. Refractories cement feem ntau yog siv rau ntawm qhov chaw tsim kho los ntawm prefabricated qhov chaw los yog rau ntawm qhov chaw pouring.
3. Muaj qhov sib txawv ntawm cov khoom siv tshuaj lom neeg. Kev ua tau zoo ntawm cov av nkos refractory ntawm qhov kub thiab txias, xws li thermal stability thiab slag tsis kam, yog qhov tsim nyog dua li cov khoom sib koom ua ke rau masonry. Txawm hais tias refractory cement kuj muaj qhov kub thiab txias, nws cov thermal expansion rate, thermal conductivity thiab lwm yam khoom yuav tsis haum rau kev siv ncaj qha los ua cov khoom sib koom ua ke rau masonry refractory bricks.
4. Muaj qhov sib txawv ntawm kev siv. Kev xaiv cov av nkos refractory yuav tsum sib haum rau qhov siv kub ntawm qhov siv. Piv txwv li, high-alumina bricks raug pom zoo kom siv high-alumina refractory av nkos, thaum av nplaum cib siv av nplaum refractory av nkos. Cov ntsiab lus ntawm txhuas nyob rau hauv refractories cement yog siab dua, thiab nws yog siv ntau dua los ua cov nplaum kub kub los npaj refractory castables.
Qhov no yog vim li cas refractory cement tsis tuaj yeem siv los tsim cov cib refractory. Txawm hais tias refractories cement thiab refractory av nkos ob leeg muaj cov ntsiab lus siab ntawm txhuas, qhov laj thawj tseem ceeb nyob rau hauv qhov sib txawv ntawm kev sib txuas thiab kev ua kom tawv tawv, uas ua rau muaj qhov sib txawv ntawm kev siv ob.
