Peb yam ntawm kub siab creep ntawm cov ntaub ntawv refractory

Hauv kev ntsuam xyuas cov ntaub ntawv refractory, qhov kub thiab txias creep yog ib qho tseem ceeb ntawm kev ntsuas kev ua tau zoo thiab zoo ntawm cov ntaub ntawv refractory. Cov kev sib raug zoo ntawm deformation thiab lub sij hawm ntawm refractory cov ntaub ntawv nyob rau hauv tas li kub kub thiab ib tug tej yam load yog kub creep ntawm cov khoom. Thaum cov khoom raug rau ib qho kev thauj khoom tsawg dua li nws qhov kawg ntawm lub zog ntawm qhov kub thiab txias, yas deformation yuav inevitably tshwm sim, thiab nws deformation yuav maj mam nce nrog lub sij hawm, thiab txawm tias cov khoom puas. Qhov tshwm sim zoo li no yog qhov tseem ceeb tshaj rau kev siv cov khoom siv refractory, vim tias peb yam ntawm cov khoom siv refractory raug txiav txim siab tib lub sijhawm rau cov ntaub ntawv refractory ntawm qhov kub thiab txias: lub zog, kub thiab sijhawm.

Vim muaj cov kev sib txawv ntawm cov khoom siv rau cov khoom siv refractory, nws tuaj yeem muab faib ua high-temperature compression creep, high-temperature tensile creep, high-temperature flexural creep and high-temperature torsional creep. Ntawm lawv, high-temperature compression creep (hu ua compression creep) feem ntau yog siv. Hloov).

Compressive creep ntawm cov khoom refractory yog txhais raws li: isothermal deformation ntawm cov khoom raug compressive kev nyuaj siab lub sij hawm.

Feem ntau lub siab yog 0.2MPa, thiab cov qauv yuav tsum yog lub tog raj kheej nrog lub hauv paus qhov, nrog txoj kab uas hla ntawm 50mm ± 0.5mm, qhov siab ntawm 50mm ± 0.5mm, thiab lub hauv paus qhov nrog txoj kab uas hla ntawm 12 mus rau 13mm, coaxial nrog lub tog raj kheej.