Niaj hnub no, refractory manufacturers kuj sib tw hnyav hauv daim teb no. Nyob rau hauv cov xwm txheej no, feem ntau cov tuam ntxhab ua haujlwm zoo ntawm kev nyiam cov neeg siv khoom. Tab sis tsis muaj teeb meem dab tsi, tib neeg tseem yuav tsum tau kawm thiab tshawb fawb thaum sib koom tes. Feem ntau hais lus, cov neeg siv khoom yuav tsum tau them sai sai rau qhov kev xaiv tseem ceeb ntawm cov tuam txhab txhim khu kev qha thaum nrhiav cov tuam txhab.
Txoj kev loj hlob ntawm refractories yog ntau yam, organic chemistry, nyiam cov khoom refractory thiab cov ntaub ntawv zoo li cov ntaub ntawv siab, feem ntau yog kev tiv thaiv ib puag ncig thiab txuag hluav taws xob. Nrog rau txoj kev loj hlob ntawm cov cuab yeej siv tshuab, sib nrug los ntawm cov txheej txheem tiv thaiv hluav taws, cov khoom siv hluav taws xob rwb thaiv tsev refractory thiab lub teeb cam khwb cia siv rau cov nqi kub kub, cov khoom kub kub ceramic fiber ntau tau maj mam qhia. Ntxiv nrog rau txheej tiv thaiv hluav taws siv rau nruab nrab kub nqi, feem ntau yog siv rau cov kub kub tiv thaiv hluav taws.
Cov ntaub ntawv refractory thiab thermal rwb thaiv tsev cov ntaub ntawv uas tuaj yeem dais qhov kub ntawm incineration yuav tsum tau xaiv raws li qhov kub thiab txias. Nyob rau tib lub sij hawm, qhov corrosion ntawm cov organic pov tseg gas los ntawm incineration yog xam. Raws li kev tiv thaiv corrosion, cov khoom siv raw xaiv tau muab faib ua peb pawg: zoo alkaline tiv thaiv rwb thaiv tsev cib. Xws li silicon carbide cib: corrosion kuj rwb thaiv tsev cib, xws li magnesium aluminium cib, magnesium cib, limestone cib; Zoo corrosion kuj nruab nrab rwb thaiv tsev cib, xws li siab aluminium refractory cib, steel jade cib, silicon carbide cib, carbon cib. Thermal rwb thaiv tsev cib muab faib ua aerated cib thiab loj cib raws li nws feem.
Cov kev ntsuas hauv qab no yuav tsum tau txais kev pom zoo rau kev tswj qhov kub thiab txias ntawm kev tsim hluav taws xob hluav taws xob hauv lub caij ntuj no: kev tsim vaj tsev kub ntawm cov pob zeb refractory castable, yas, tshuaj tsuag xim, fireproof xuab zeb slurry, thiab lwm yam., yuav tsum tsis pub tsawg tshaj 5 degree; Kev tsim kho kub ntawm sodium silicate refractory castable, av nplaum refractory cement thiab polyphosphate refractory hluav taws castable yuav tsum tsis pub tsawg tshaj 10 degree; Refractory castables nrog qis viscosity ua vaj tse raws li cov nplaum tuaj yeem ua kom sov nrog cov dej sib tov, tab sis qhov kub yuav tsum tsis txhob siab tshaj 30 degree. Qhov kub ntawm cov dej cua sov rau ya tshauv cement refractory castable tsis tuaj yeem tshaj 60 degree. Txawm li cas los xij, cov organic chemical vulcanization accelerators yuav tsis raug ntxiv rau cov hluav taws kub nyhiab.
Lub high-temperature structural compressive zog ntawm refractories yuav tsum tau muab rau hauv tus account. Cov khoom siv hauv kev siv yuav ris qee lub nra thiab kev puas tsuaj. Cov txheej txheem compressive zog ntawm raw cov ntaub ntawv tuaj yeem hloov pauv ntawm qhov kub thiab txias, yog li qhov kub compressive zog yuav tsum tau muab coj los rau hauv tus account. Qhov kom zoo dua yog tias lub load ua mos. Daim ntawv thov kub ntawm refractories yuav tsum tsawg tshaj li qhov load softening point. Piv txwv li, qhov hluav taws kub tiv thaiv qib ntawm av nplaum cib yog 1730 degree, thiab nws cov load softening point yog 1350 degree, yog li qhov siab thov kub tsuas yog 1350 degree.
