Cov khoom tseem ceeb ntawm cov khoom siv refractory xws li cov cib ua pa, nozzle block bricks, thiab castables

Cov ntaub ntawv refractory yog siv dav hauv metallurgy, tshuaj siv tshuab, roj av thiab petrochemical, kev tsim khoom siv hluav taws xob, kev tsim hluav taws xob thiab lwm yam kev lag luam, uas yog siv ntau tshaj plaws hauv kev lag luam metallurgical. Nyob rau hauv lub steel ladles thiab refining furnaces nyob rau hauv lub steelmaking kev lag luam, cov ntaub ntawv refractory feem ntau siv los ntawm steelmaking manufacturers muaj xws li breathable bricks, nozzle block bricks, hluav taws xob rauv npog, castables, ntws xuab zeb, magnesia carbon bricks, thiab lwm yam. Cov ntaub ntawv refractory no txawv, thiab lub ntsiab Cheebtsam thiab ntxiv Cheebtsam yog txawv heev. Los ntawm kev tshuaj xyuas tshuaj, cov khoom siv refractory yog tsim los ntawm cov zaub mov, xws li corundum, mullite, magnesia, thiab lwm yam. Cov khoom tseem ceeb ntawm cov khoom yog alumina thiab magnesia.

(Daim duab) Corundum

Raws li cov khoom tseem ceeb ntawm cov khoom siv refractory, nws yog cov khoom siv matrix uas tsim cov khoom ntawm refractory, yog lub hauv paus ntawm cov yam ntxwv ntawm cov khoom siv refractory, thiab ncaj qha txiav txim siab cov khoom ntawm cov khoom refractory. Piv txwv li, cov cib ua pa yuav tsum tau ua los ntawm cov ore zoo, thiab tom qab ntawd ua los ntawm cov txheej txheem nruj thiab tsim nyog, txhawm rau kom ntseeg tau tias lub neej ntev ntawm cov pa cib siv los ntawm cov tuam txhab steel tuaj yeem ua tau raws li qhov yuav tsum tau ua. Cov khoom tseem ceeb ntawm cov ntaub ntawv refractory tuaj yeem yog oxides (aluminium oxide, magnesium oxide, thiab lwm yam), los yog cov ntsiab lus lossis cov khoom tsis muaj oxide (carbon, silicon carbide, thiab lwm yam).

Raws li qhov xwm txheej ntawm cov khoom tseem ceeb, cov ntaub ntawv refractory tuaj yeem muab faib ua peb pawg: acidic, nruab nrab, thiab alkaline. Acid refractory cov ntaub ntawv feem ntau yog cov ntaub ntawv uas muaj acidic oxides xws li silicon oxide. Lub ntsiab tivthaiv yog silicic acid los yog txhuas silicate, uas yuav tsim cov ntsev nyob rau hauv qhov kev txiav txim ntawm kub thiab alkali. Cov khoom tseem ceeb ntawm alkaline refractories yog magnesium oxide, calcium oxide, thiab lwm yam. Cov khoom siv refractory feem ntau suav nrog cov dej xuab zeb thiab cov ladle slides. Cov refractories nruab nrab yog nruj me ntsis carbonaceous thiab chromium refractories. Tsis tas li ntawd, high-aluminium refractories (alumina cov ntsiab lus ntau dua 45%) yog nruab nrab refractories uas zoo li acidic, thaum chromium refractories zoo li alkaline ntau. Rau cov khoom siv hluav taws xob tsis zoo, cov khoom siv high-alumina refractory muaj xws li cov cib ua pa, cov pob zeb nozzle blocks, thiab cov npog hluav taws xob.

(Daim duab) Rauv cover

Peb lub tuam txhab muaj 18 xyoo ntawm kev tshawb fawb thiab kev tsim kho, tsim khoom thiab muag khoom ntawm refractory cov ntaub ntawv xws li breathable bricks, nozzle block bricks, castables, thiab patented qauv, tshwj xeeb tsim, thiab nruj thiab standardized siv ntawm txhua tus txheej txheem, kom steel manufacturers siv tau. nrog kev thaj yeeb ntawm lub siab thiab kev nplij siab.