Nws tau kwv yees tias lub ntiaj teb cov khoom tsim tawm ntawm cov khoom siv refractory tau mus txog li 45 × 106t ib xyoos twg, thiab tau tuav ib qho kev nce siab ib xyoos ib zaug.
Kev lag luam steel tseem yog lub lag luam tseem ceeb rau cov khoom siv refractory, siv li ntawm 71% ntawm cov khoom tsim tawm txhua xyoo. Hauv 15 xyoo dhau los, lub ntiaj teb cov khoom siv roj av tau nce ob npaug, nce mus txog 1,623 × 106t hauv xyoo 2015, ntawm 50% yog tsim nyob rau hauv Suav teb. Nyob rau hauv ob peb xyoos tom ntej no, kev loj hlob ntawm cov cement, ceramics thiab lwm yam khoom ntxhia yuav ua kom tiav qhov kev loj hlob no, thiab kev nce hauv cov khoom siv refractory siv hauv kev tsim cov hlau thiab cov khoom tsis yog hlau ntxhia yuav ua rau kev lag luam loj hlob ntxiv. Ntawm qhov tod tes, kev noj cov khoom siv refractory nyob rau hauv txhua qhov chaw tseem txo qis. Txij li thaum xyoo 1970s lig, kev siv carbon tau dhau los ua qhov tseem ceeb. Unburned carbon-muaj cib tau siv dav hauv cov hlau thiab hlau ua cov hlab ntsha kom txo tau cov khoom siv refractories. Nyob rau tib lub sijhawm, qis cement Castables pib hloov feem ntau cov uas tsis yog carbon refractory cib. Unshaped refractory cov ntaub ntawv, xws li castables thiab cov ntaub ntawv txhaj tshuaj, tsis yog tsuas yog kev txhim kho cov khoom nws tus kheej, tab sis kuj yog kev txhim kho ntawm txoj kev tsim kho. Piv nrog rau cov tsis zoo li cov refractory hauv ob sab phlu ntawm cov khoom zoo li tus, kev tsim kho yog sai dua thiab lub sij hawm downtime ntawm lub kiln yog txo. Muaj peev xwm txo cov nqi.
Unshaped refractories account rau 50% ntawm lub ntiaj teb no kev ua lag luam, tshwj xeeb tshaj yog kev loj hlob prospects ntawm castables thiab preforms. Nyob rau hauv Nyiv, raws li ib tug kev taw qhia rau lub ntiaj teb no sib, monolithic refractories twb accounted rau 70% ntawm tag nrho cov refractory tso zis nyob rau hauv 2012, thiab lawv cov kev ua lag luam feem tau nce mus ntxiv.
Post lub sij hawm: Jan-30-2023