Abrasion kuj yog ib qho tseem ceeb hauv kev yaig ntawm hluav taws kub-resistant bricks. Tab sis hom twg ntawm refractory hluav taws cib yog qhov tawg tshaj plaws?
Zoo abrasion refractory hluav taws cib tsis yog lub zog siab dua, tab sis hnav tsis kam ntawm sab hauv zoo ntawm cib. Lub abrasion kuj ntawm ntau hom refractory bricks yog txawv, thiab tus nqi ntawm hnav nyob rau hauv daim ntawv thov tiag tiag yog raws li tus nqi ntawm hnav. Silicon carbide refractory hluav taws cib muaj qhov muaj zog hnav tsis kam. Kev tiv thaiv kev tiv thaiv ntawm siab aluminium refractory cib thiab nruj jade hluav taws-resistant bricks yog nyob rau hauv nruab nrab. Kev puas tsuaj ntawm alkaline cib, silicon cib thiab fireclay cib tsis zoo. Vim qhov sib txawv ntawm cov ntsiab lus alumina, qhov hnav ntawm high aluminium bricks kuj txawv.
Raws li kev siv, aluminium carbide carbon refractory hluav taws cib uas muaj graphite -muaj graphite loj, aluminium carbon cib nrog cov ntsiab lus graphite tsawg lossis graphite tsis muaj graphite muaj tsawg dua hnav. Lub hardness ntawm silicon carbide thiab rigida yog siab heev. Raws li txoj cai, qhov siab dua qhov hardness, qhov muaj zog hnav tsis kam. Qhov qis zog ntawm Mo's, qhov qis hnav tsis kam. Graphite muaj kev puas tsuaj tsis zoo. Qhov no yog vim nws tsis tshua muaj hardness thiab txheej txheej tsim ntawm molecular quab yuam.
Piv txwv li, Mo's hardness ntawm magnesium cib, magnesium spinel refractory hluav taws cib, magnesium chromium cib, hluav taws av nplaum cib thiab silicon cib yog qhov tsawg, thiab kev puas tsuaj yog txo. Tseem muaj qee cov cib sib xyaw, xws li av nplaum sib txuas silicon carbide cib, silicon nitride bonding carbon cov vuas thiab cov pob zeb jade carbide. Nyob rau hauv sib piv, silicon nitride bonding carbonized silicon vuas yog abrasion ntau dua rigid jade carbonized silicon vuas. Gang jade carbonized silicon bricks yog abrasion ntau dua av nplaum bonding carbon cov vuas.
Cov qauv siv lead ua thiab lattice ntawm cov ntxhia sib txawv tuaj yeem ua rau sib txawv ntxhia hardness. Lub hardness ntawm pob zeb diamond, silicon carbide, thiab migram ntawm atomic crystals yog siab heev, thiab hardness ntawm spinels, mullite thiab Fang Magnestes ntawm ion crystals txo nyob rau hauv kev txiav txim; qhov siab dua qhov hardness ntawm cov ntxhia, qhov muaj zog hnav tsis kam.
Vim qhov sib txawv ntawm cov ntsiab lus txhuas, siab aluminium refractory hluav taws cib muaj qhov sib txawv hnav tsis kam. High alumina bricks muaj qhov hnav tsis kam, thaum cov aluminium bricks tsawg muaj kev hnav tsis zoo. Tsuas yog silicon carbide thiaj li muaj kev puas tsuaj tsawg dua. Yog li ntawd, silicon carbide refractory cib yog cov hnav-resistant tshaj plaws.
