Muaj ntau yam tsis zoo li cov refractories, uas tuaj yeem faib raws li cov khoom siv lossis cov nplaum siv. Raws li nws cov txheej txheem cov yam ntxwv, nws tuaj yeem muab faib ua castable, ramming khoom, txau cov khoom thiab cov av nkos refractory. Hais lus dav dav, cov coatings refractory kuj suav hais tias yog cov tsis zoo li cov refractories.
Cov tshuaj thiab ntxhia muaj pes tsawg leeg ntawm amorphous refractories feem ntau yog nyob ntawm cov granular thiab powdery refractories siv. Nws kuj yog ze ze rau hom thiab ntau npaum li cas ntawm cov nplaum siv. Qhov ntom ntawm cov qauv lossis cov khoom ua los ntawm cov khoom tsis zoo li cov khoom siv refractory feem ntau cuam tshuam nrog cov khoom siv thiab lawv cov proportions. Nyob rau tib lub sijhawm, nws feem ntau nyob ntawm txoj kev tsim kho thiab thev naus laus zis. Feem ntau hais lus, piv nrog cov khoom sintered ntawm tib cov khoom, feem ntau amorphous refractories muaj porosity ntau dua vim tsis tshua muaj sab nraud quab yuam hauv txoj kev tsim ua ntej lossis txawm tias tom qab sintering; Cov tshuaj tiv thaiv ua ntej sintering tuaj yeem hloov cov qauv lossis qee yam khoom ntawm cov khoom, thiab qee qhov nruab nrab kub lub zog yuav raug txo me ntsis vim tias muaj cov khoom tsis kub kub ruaj khov xws li cov ntaub ntawv khi. Thaum qhov kub thiab txias, qhov ntim ruaj khov yuav qis dua me ntsis, qhov porosity yuav siab dua, corrosion kuj yuav qis dua, tab sis thermal shock kuj feem ntau siab dua.
Kev tsim cov amorphous refractories tsuas yog los ntawm kev npaj cov ntaub ntawv granular thiab hmoov thiab cov txheej txheem ntawm kev sib tov. Cov txheej txheem yog yooj yim, yield yog siab, lub mov yog ceev thiab lub tshav kub zog noj yog tsawg. Thaum lub refractory cib masonry los yog tag nrho cov qauv yog puas nyob rau hauv lub zos, lub txias los yog kub spraying txoj kev yuav siv tau los kho, uas yog ceev thiab yig. Tshwj xeeb, nws yuav tsum tau siv los ua cov txheej txheem tiv thaiv thiab sealing khoom rau masonry los yog lub teeb yuag refractory. Nws yog qhov yooj yim los ua cov khoom loj refractory.
