Lub Ntiaj Teb Sib Txawv ntawm Cov Khoom Siv Refractory

Kwv yees tias cov khoom tsim tawm thoob ntiaj teb ntawm cov ntaub ntawv refractory tau txog li 45 × 106t ib xyoos, thiab tau tswj hwm qhov sib txawv ntawm xyoo mus rau xyoo.

Kev lag luam hlau tseem yog lub khw tseem ceeb rau cov khoom siv refractory, siv li ntawm 71% ntawm cov khoom siv refractory txhua xyoo. Hauv 15 xyoo dhau los, kev tsim cov hlau nyoos thoob ntiaj teb tau nce ob npaug, ncav cuag 1,623 × 106t hauv xyoo 2015, uas kwv yees li 50% yog tsim nyob rau hauv Suav teb. Hauv ob peb xyoos tom ntej no, kev loj hlob ntawm cement, ceramics thiab lwm yam khoom siv hauv av yuav ua kom tiav qhov kev loj hlob no, thiab kev nce ntxiv ntawm cov khoom siv refractory siv hauv kev tsim cov hlau thiab cov khoom siv hauv av uas tsis yog hlau yuav ua rau kev loj hlob ntawm kev lag luam ntxiv. Ntawm qhov tod tes, kev siv cov khoom siv refractory hauv txhua qhov chaw txuas ntxiv txo qis. Txij li thaum xyoo 1970s lig, kev siv cov pa roj carbon tau dhau los ua qhov tseem ceeb. Cov cib uas muaj cov pa roj carbon tsis tau hlawv tau siv dav hauv cov hlau thiab cov hlau ua cov hlab kom txo tau kev siv cov refractories. Tib lub sijhawm, cov Castables cement qis tau pib hloov feem ntau cov cib refractory uas tsis yog carbon. Cov khoom siv refractory tsis zoo li qub, xws li castables thiab cov ntaub ntawv txhaj tshuaj, tsis yog tsuas yog kev txhim kho ntawm cov khoom siv nws tus kheej xwb, tab sis kuj yog kev txhim kho ntawm txoj kev tsim kho. Piv nrog rau cov khoom uas tsis muaj duab zoo li cov khoom uas zoo li cov khoom, kev tsim kho sai dua thiab lub sijhawm tsis ua haujlwm ntawm lub qhov cub raug txo qis. Nws tuaj yeem txo cov nqi tau zoo heev.

Cov khoom siv refractories uas tsis muaj duab suav txog 50% ntawm kev lag luam thoob ntiaj teb, tshwj xeeb tshaj yog qhov kev cia siab loj hlob ntawm castables thiab preforms. Hauv Nyiv Pooj, ua ib qho kev qhia rau qhov sib txawv thoob ntiaj teb, cov khoom siv refractories monolithic twb suav txog 70% ntawm tag nrho cov khoom siv refractory hauv xyoo 2012, thiab lawv cov feem ntawm kev lag luam tau txuas ntxiv nce ntxiv.