Yam dab tsi cuam tshuam qhov hnav tsis kam ntawm refractory bricks?

Refractory bricks tau siv dav hauv ntau qhov haujlwm. Refractory bricks kuj tau teem rau hauv lub qhov cub. Refractory bricks yuav tsum tsis tsuas yog ua tau raws li qhov yuav tsum tau ntawm hluav taws kub tsis kam thiab kub tsis kam, tab sis kuj ua tau raws li qhov yuav tsum tau ntawm hnav tsis kam.

Qhov hnav tsis kam ntawm refractory bricks nyob ntawm seb muaj pes tsawg leeg thiab cov qauv ntawm refractory cib. Thaum muaj pes tsawg leeg ntawm refractory bricks yog ntom polycrystalline muaj li ntawm ib tug crystals, nws hnav tsis kam tsuas yog nyob ntawm hardness ntawm cov ntaub ntawv mineral crystals. High hardness thiab hnav tsis kam. Thaum cov pob zeb hauv av tsis yog-isotropic, cov khoom muaj cov nplej zoo thiab hnav tsis kam. Thaum cov khoom tsim los ntawm ntau theem, nws hnav tsis kam yog ncaj qha ntsig txog qhov ntom ntom lossis porosity ntawm cov khoom, nrog rau lub zog sib txuas ntawm cov khoom. Yog li ntawd, kev puas tsuaj ntawm cov cib refractory yog proportional rau nws chav tsev kub compressive zog, thiab sintered refractory bricks muaj zoo abrasion tsis kam. Cov muaj pes tsawg leeg, cov qauv, qhov kub thiab txias, thiab lwm yam ntawm refractory cib yuav cuam tshuam nws cov hnav tsis kam, ua rau cov cib refractory zoo heev hauv kev hnav tsis kam!

Qhov hnav tsis kam ntawm refractory bricks kuj muaj feem xyuam rau qhov kub thiab txias. Piv txwv li, nyob rau hauv qhov kub thiab txias tshaj 900 ° C, nws yog feem ntau txiav txim siab tias refractory bricks muaj ib tug tej yam degree ntawm hnav tsis kam (xws li hauv qab 900 ° C). Nws tuaj yeem txiav txim siab tias thaum kub nce, qhov hnav tsis kam txo qis thaum lub elastic modulus ntawm refractory bricks nce. Thaum qhov kub thiab txias nce mus txog qhov siab tshaj plaws ntawm cov elastic modulus, qhov hnav tsis kam nce nrog qhov txo qis ntawm elastic modulus. Piv txwv li, kev puas tsuaj ntawm cov av nplaum nplaum ntawm 1200 ~ 1350 ℃ yog qhov zoo dua li ntawm chav tsev kub. Thaum qhov kub ntxiv nce siab tshaj 1400 ° C, viscosity ntawm cov kua hauv cov khoom refractory poob qis thiab qhov hnav tsis kam txo. Ib txhia, xws li refractory bricks, yuav nce raws li qhov kub thiab txias.

Los ntawm cov ntsiab lus saum toj no, koj puas paub ntau ntxiv txog refractory bricks?