Dab tsi hnav tsis kam ntawm refractory cib yuav tsum ua nrog?

Refractory cib yog ib yam khoom siv refractory. Peb yuav tsum tau sim txhua yam ntawm cov khoom thaum lub sij hawm tsim khoom. Txij li cov khoom no feem ntau yog siv rau kev tsim kho ntawm phab ntsa engineering, cov kev cai rau nws tus kheej hnav tsis kam yog qhov siab. Yog tias koj xav txhim kho nws qhov hnav tsis kam, koj yuav tsum xub tshem tawm cov yam ntxwv uas cuam tshuam rau cov khoom hnav tsis kam. Ces lo lus nug yog, dab tsi hnav tsis kam ntawm refractory bricks tau ua nrog nws?

Lub abrasion kuj ntawm refractory bricks nyob ntawm nws tus kheej muaj pes tsawg leeg thiab qauv. Thaum cov khoom yog tsim los ntawm ntom polycrystals muaj li ntawm ib tug siv lead ua, nws puas kuj yog nyob ntawm hardness ntawm cov pob zeb hauv av crystals uas ua rau cov khoom. High hardness, siab hnav tsis kam ntawm cov khoom. Thaum cov pob zeb hauv av tsis yog-isotropic, cov khoom siv lead ua hmoov zoo thiab cov khoom hnav tsis kam yog siab. Thaum cov khoom tsim los ntawm ntau theem, nws qhov hnav tsis kam yog ncaj qha cuam tshuam nrog qhov ntom ntom lossis qhov porosity ntawm cov khoom, thiab tseem cuam tshuam rau kev sib txuas ntawm cov khoom sib txuas.

Yog li ntawd, rau ib yam ntawm cov cib ntawm chav tsev kub, nws cov abrasion kuj yog proportional rau nws compressive zog. Yog tias cov chaw tsim khoom xav txog cov xwm txheej saum toj no thaum sintering lub refractory bricks, cov khoom tsim muaj kev puas tsuaj zoo dua. Tsis tas li ntawd, qhov hnav tsis kam ntawm cov khoom muaj feem xyuam nrog qhov kub thiab txias thaum siv. Qee cov khoom, xws li siab alumina cib, feem ntau suav hais tias yog qhov kub thiab txias (xws li nyob rau hauv qhov elasticity qis dua 700-900 ℃). Qhov siab dua qhov kub, qhov hnav tsis kam. Nws tuaj yeem txiav txim siab tias thaum kub nce, qhov hnav tsis kam txo qis vim qhov elastic modulus ntawm cib nce.

Ua ntej tshaj plaws, tib neeg tuaj yeem paub cov tshuaj muaj pes tsawg leeg ntawm cov khoom no. Vim hais tias refractory cib factories tseem nrov heev nyob rau hauv tib neeg lub neej. Thiab peb txhua tus paub tias nws cov khoom tseem ceeb txiav txim siab qhov zoo thiab cov yam ntxwv ntawm refractory. Feem ntau hais lus, cov khoom siv raw ntawm cov khoom siv refractory yog los ntawm ntau cov ntaub ntawv refractory. Yog li ntawd, peb tab tom pib siv cov khoom siv raw no ntau dua hauv peb lub neej.

Qhov thib ob, peb kuj paub tias nws muaj cov yam ntxwv tshwj xeeb xws li qhov ntom ntom. Vim hais tias cov cib refractory no yuav tsum tau tiv taus qhov kub thiab txias heev, tib neeg kuj xav tau lawv ua haujlwm ib txwm nyob rau qhov kub thiab txias. Yog li ntawd, qhov hnyav rau ib lub ntim ntim muaj qhov siab ceev, uas txhais tau tias kev cog lus ntawm lub cib refractory yog qhov zoo, thiab lub zog yuav ua siab ntev.

Tom qab ntawd, refractory bricks kuj muaj cov kev xav tau siab dua rau qhov porosity. Tab sis tam sim no, tib neeg yuav tsum tau ua cov kev cai tshwj xeeb hauv cov txheej txheem tsim khoom, tab sis raws li cov chaw tsim khoom, lawv nruj me ntsis tswj cov pores pom thiab muaj cov khoom zoo heev. Ntawm qhov tod tes, lub thermal shock tsis kam ntawm cov khoom siv no yog qhov zoo heev, thiab nws lub peev xwm los tiv thaiv qhov kub thiab txias tsis tas yuav raug puas tsuaj.

Nws tuaj yeem nqa tau ntau yam txiaj ntsig rau tib neeg. Muaj ntau cov khoom siv tshuaj tshiab hauv tib neeg lub neej, thiab cov no yog ua kom tib neeg cov khoom siv lub neej zoo dua. Refractory bricks yog ib qho khoom siv tseem ceeb hauv kev tsim khoom. Cov khoom siv refractory yog cov khoom siv tshuaj ruaj khov heev.