Cov refractories raug rau ob qho kev cuam tshuam ntawm qhov kub thiab txias sab nraud thaum siv ntev, thiab ntau yam kev ntxhov siab thiab kev hloov pauv yuav tshwm sim. Cov khoom zoo ntawm cov khoom siv refractory hais txog qhov lawv ua haujlwm zoo npaum li cas hauv qee qhov kev thauj khoom thiab hom. Qhov kub thiab txias txhua yam muaj zog, kub kub txhua yam muaj zog, load softening kub, siab kub creep, elastic modulus, thiab hnav tsis kam yog cov kev qhia tseem ceeb siv nyob rau hauv engineering los ntsuam xyuas cov khoom ntawm refractories.
1, Mechanical zog ntawm refractories ntawm chav tsev kub
Qhov kev ntxhov siab tseem ceeb ntawm cov khoom siv refractory uas tiv thaiv sab nraud tsis muaj kev puas tsuaj ntawm chav tsev kub. Nws yog feem ntau qhia los ntawm peb qhov kev qhia: qhov kub thiab txias compressive zog, qhov kub thiab txias flexural zog thiab ib txwm kub shear zog.
2, Refractory cov ntaub ntawv ' mechanical zog ntawm qhov kub thiab txias
a. High kub compressive zog
b. Kub kub flexural zog
c. kub shear zog.
3. Qhov kub ntawm cov ntaub ntawv refractory tsis muaj zog nyob rau hauv load
Cov tshuaj lom neeg ntxhia muaj pes tsawg leeg thiab cov qauv tsim, qhov ntau thiab kev sib cuam tshuam ntawm cov theem siv lead ua thiab cov theem ua kua, cov viscosity ntawm cov kua theem, thiab cov qauv macroscopic, xws li ntom thiab porosity, yog lub ntsiab tseem ceeb cuam tshuam cov load softening kub ntawm refractories. Feem ntau hais lus, qhov softening kub nyob rau hauv load yog siab dua rau refractories nrog siv lead ua network lug thiab qis dua rau refractories nrog kob zoo li cov qauv faib nyob rau hauv cov kua theem; cov ntaub ntawv muaj cov kua theem ntau dua los yog kua theem. Lub softening kub nyob rau hauv load yog inversely correlated nrog viscosity: nws txo nrog txo porosity thiab nce nrog viscosity tsawg.
4, siab kub creep
Thaum cov ntaub ntawv refractory raug rau lub zog tas li ntawm lawv lub zog tseem ceeb nyob rau lub sijhawm ntev ntawm qhov kub thiab txias, deformation tshwm sim, thiab qib ntawm deformation nce nrog lub sijhawm. Kub creep yog lub sij hawm rau qhov tshwm sim no. Creep rupture yog lo lus siv los piav txog cov khoom tawg uas tshwm sim los ntawm creep. Lub siab kub creep khoom ntawm cov khoom yog txhais raws li kev sib raug zoo ntawm tus nqi ntawm deformation thiab lub sij hawm ntawm ib tug refractory khoom nyob rau hauv tas li kub thiab quab yuam rau ib tug ncua sij hawm ntawm lub sij hawm.
5, Elasticity modulus
Elastic modulus feem ntau siab dua nyob rau hauv cov ntaub ntawv refractory nrog ntau dua compressive zog thiab flexural zog, thiab nws yog roughly inversely correlated nrog hnav tsis kam. Lub acoustic zaus mus kom ze thiab txoj kev thauj khoom zoo li qub yog ob txoj kev yooj yim rau kev txiav txim siab elastic modulus ntawm refractories.
6, Refractory cov ntaub ntawv 'resilience rau abrasion
Lub hardness ntawm cov khoom, lub zog ntawm kev sib txuas ntawm cov khoom, lub xub ntiag ntawm qhov chaw ua haujlwm, thiab lwm yam, txhua yam cuam tshuam rau cov khoom siv refractory hnav li cas. Refractories uas muaj cov qauv sib dhos ua ke, kev ua siab dawb paug, theem siab ntawm kev tawv ncauj, thiab lub zog siab feem ntau muaj cov hnav zoo.
