- 23
- Feb
Dab tsi ntawm silica alumina refractory cib suav nrog?
Dab tsi ntawm silica alumina refractory cib suav nrog?
(1) Silica cib: xa mus rau cov cib refractory uas muaj ntau tshaj 293% SiO, thiab yog cov hom tseem ceeb ntawm cov kua qaub refractory cib. Nws yog tsuas yog siv rau lub tsev coke ncu, thiab kuj siv rau lub vaults thiab lwm yam load-bearing qhov chaw ntawm thermal kilns rau ntau yam iav, ceramics, carbon calciners, thiab refractory cib. Nws kuj tseem siv nyob rau hauv qhov kub-kub load-bearing qhov chaw ntawm kub moj tej tawg qhov cub, tab sis tsis Siv nyob rau hauv thermal khoom hauv qab 600 ° C thiab nrog loj kub hloov.
(2) Clay bricks: Clay bricks are mainly composed of mullite (25%-50%), glass phase (25%-60%), cristobalite and quartz (up to 30%). Usually hard clay is used as the raw material, the mature material is pre-calcined, and then mixed with soft clay, which is formed by semi-dry or plastic method, and the temperature is 1300~1400 C to burn clay brick products. You can also add a small amount of water glass, cement and other binders to make unburned products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast stoves, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory brick firing kilns.
(3) High alumina refractory cib: Cov ntxhia muaj pes tsawg leeg ntawm siab alumina refractory cib yog corundum, mullite thiab iav theem. Nws cov ntsiab lus nyob ntawm qhov piv ntawm AL2O3 / SiO2 thiab hom thiab ntau ntawm impurities. Cov cib refractory tuaj yeem raug cais raws li cov ntsiab lus ntawm AL2O3. Cov ntaub ntawv raw yog siab alumina bauxite thiab sillimanite natural ores, nrog rau cov sib xyaw nrog fused corundum, sintered alumina, hluavtaws mullite, thiab clinker calcined nrog alumina thiab av nplaum nyob rau hauv sib txawv proportions. Nws feem ntau yog tsim los ntawm txoj kev sintering. Tab sis cov khoom tseem muaj xws li fused cam khwb cia bricks, fused grain cib, unburned cib thiab unshaped refractory cib. High alumina refractory bricks yog dav siv nyob rau hauv steel kev lag luam, non-ferrous hlau kev lag luam thiab lwm yam lag luam.
(4) Corundum refractory cib: Corundum cib hais txog ib hom refractory cib nrog cov ntsiab lus ntawm AL2O3 tsis tsawg dua 90% thiab cov theem tseem ceeb ntawm corundum. Nws tuaj yeem muab faib ua sintered corundum cib thiab fused corundum cib.