Kev faib tawm ntawm cov khoom siv refractory
Muaj ntau ntau hom khoom siv refractory, thiab tam sim no cov txheej txheem kev faib tawm ntawm cov ntaub ntawv refractory yog kwv yees li hauv qab no.
1, raws li cov refractories tau muab faib ua Ordinary refractories: refractories ntau dua 1580 degree ~ 1770 degree High-qib refractory: refractories ntau dua 1770 degree ~ 2000 degree .Extra qib refractory: refractories ntau dua ~ 200 degree refractories ntau dua 3000 degree.
2, raws li cov txheej txheem tsim khoom raws li cov txheej txheem tsim khoom tuaj yeem muab faib ua cov pob zeb ntuj, cov av nkos txhaj tshuaj, yas molding, semi-qhuav molding, qhuav xovxwm molding, ramming, melting thiab casting cov khoom xws li.
3, according to chemical composition of a mineral can be divided into(1) siliceous productsSilica brick Si02>93% of the products, quartz glass Si02>99% of the fused products.(2) aluminum silicate productsSilicic acid Si02>65%, AI20s between 15~30%.Clay brick AI203 is between 30 and 48%.High aluminum brick AI203>48% of the products.(3) magnesium productsMagnesia brick: Mg0>85%, magnesia chrome brick Mg055~80% (Cr20:10~30%) products. Chrome magnesia brick: Mg025~55% combined with more chromite products; Magnesia-aluminum brick: magnesia-aluminum cuspite (Mg0-A1203) combined with magnesia-aluminum brick; Mg0·Si02) brick, Mg035~55%.Magnesium olivine (2Dolomite products: products with Ca0>40%, Mg0>35% (4) Chrome brickCr20330% (5) carbonaceous khoom Carbon cib: cov khoom uas muaj cov ntsiab lus ntawm 70 ~ 90% Graphite khoom: cov khoom uas muaj ntau tshaj 30% graphite.Silicon carbide khoom: nrog Sic li raw khoom, fireclay los yog lwm yam inorganic Cov khoom sib xyaw ua ke.(6) Cov khoom siv tshwj xeeb kub kub cov khoom siv ceramic: cov khoom siv cermet.
4 Sib faib los ntawm cov duab thiab loj Raws li cov duab thiab qhov loj tuaj yeem muab faib ua: tus qauv, dav dav, txawv, tshwj xeeb cib, ntxiv rau, refractories raws li kev siv hluav taws xob, raws li kev siv, raws li kev tsim kho, muaj qee qhov kev faib tawm.
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