Sic Firebrick hais txog cov khoom uas muaj SiO2 cov ntsiab lus ntau dua 93 feem pua. Silica cib yog tsim los ntawm silica nrog SiO2 cov ntsiab lus tsis tsawg dua 96 feem pua, ntxiv cov ntxhia pob zeb thiab cov khoom sib khi, thiab dhau los ntawm cov txheej txheem xws li sib tov, molding, ziab, thiab tua. Qhov siab dua SiO2 cov ntsiab lus hauv cov khoom siv silica, qhov siab dua qhov refractoriness ntawm cov khoom. Muaj ntau ntau yam ntawm Sic Firebrick, uas tau muab faib ua: silica cib rau coke ncu, silica cib rau kub moj tej tawg furnaces, silica bricks rau hluav taws xob furnaces, Sic Firebrick rau iav kilns, thiab lwm yam. Raws li kev hloov pauv, nws muab faib ua: txheem cib, zoo tib yam cib, tshwj xeeb-zoo li tus cib thiab tshwj xeeb-zoo li tus cib.
Silica cib nta:
Silica cib yog cov khoom siv acid refractory, uas muaj zog tiv thaiv cov kua qaub slag los yog kua qaub erosion. Lub siab softening kub nyob rau hauv load yog ib tug zoo heev yam ntxwv ntawm Sic Firebrick, uas yog feem ntau yog 1640-1680 degree .
Daim ntawv thov Silica cib:
Silica bricks yog tsuas yog siv rau carbonization chamber, combustion chamber thiab muab faib phab ntsa ntawm masonry coke ncu, iav pas dej ua ke kilns thiab kiln ru tsev, pas dej ua ke phab ntsa, siab kub load-bearing qhov chaw ntawm kub blast qhov cub, iav pas dej ua ke kilns, pas dej ua ke phab ntsa, siab kub. load-bearing qhov chaw ntawm kub moj tej tawg qhov cub, Thermal kilns xws li carbon roasters.
Sic Firebrick yog cov khoom lag luam refractory nrog silica ua cov khoom tseem ceeb thiab nws cov ntsiab lus yog ntau dua 93 feem pua. Nws siv quartzite ua raw khoom, ntxiv ib qho me me ntawm cov mineralizer, thiab raug rho tawm haujlwm ntawm qhov kub thiab txias. Nws cov ntxhia muaj pes tsawg leeg yog ib tug complex qauv ntawm tridymite, cristobalite, ib tug me me ntawm residual quartz thiab vitreous tsim nyob rau hauv high kub.
Silica cib yog cov khoom siv acidic refractory, uas muaj zog tiv thaiv cov kua qaub slag yaig, tab sis muaj zog eroded los ntawm alkaline slag, thiab yooj yim puas los ntawm oxides xws li Al2O3, K20, Na2O, thiab lwm yam. Nws muaj kev tiv thaiv zoo rau oxides xws li CaO. , FeO, Fe2O3. tsis kam.
Silica cib yog cov khoom siv acid refractory, uas muaj zog tiv thaiv cov kua qaub slag yaig, tab sis muaj zog eroded los ntawm alkaline slag, thiab yooj yim puas los ntawm oxides xws li Al 203, K20, Na2O, thiab lwm yam zoo kuj.
Lub siab deformation kub nyob rau hauv load yog ib tug zoo heev yam ntxwv ntawm Sic Firebrick. Lub melting point (1670 degree, 1713 degree) ze rau tridymite thiab cristobalite fluctuates ntawm 1640 thiab 1680 degree. Raws li quartz tseem hloov pauv, qhov ntim tsis tuaj yeem nthuav dav yuav tshwm sim. Lub ntim ntawm silica bricks yog ruaj khov nyob rau hauv thaj tsam ntawm 300 degree mus rau ze rau lub melting point (tridymite los yog cristobalite). Thaum rhuab mus rau 1450 degree, tag nrho ntim nthuav dav li ntawm 1.5 feem pua rau 2.2 feem pua yuav ua rau cov cib nthuav. Cov seams yog nruj nreem kaw kom ntseeg tau tias lub cev masonry muaj huab cua nruj thiab lub zog zoo.
Qhov loj tshaj qhov tsis zoo ntawm Sic Firebrick yog nws cov thermal shock stability (kwv yees li 14 zaug ntawm kev sib hloov cua sov hauv dej), ua raws li nws cov refractoriness tsawg (feem ntau ntawm 1690 thiab 1730 degree), uas txwv nws cov ntawv thov ntau yam.
Silica cib feem ntau yog siv hauv coke ncu, iav melting rauv, acid steelmaking furnaces thiab lwm yam khoom siv thermal.
Thaum siv Sic Firebrick, koj yuav tsum xyuam xim rau ob lub ntsiab lus hauv qab no:
1. Ntawm 200 ~ 300 degree thiab 573 degree, lub ntim ntawm siliceous cov khoom nthuav tawm sai heev vim qhov hloov pauv ntawm cov khoom siv lead ua. Yog li ntawd, nws tsis pom zoo kom cua sov sai dua hauv qab 600 degree hauv qhov cub, thiab tsis txhob muaj cua sov hnyav thaum nws txias kom qis dua 600 degree. kub hloov.
2. Nws yuav tsum tsis txhob sib cuag nrog alkaline slag ntau li ntau tau.
