Tsawg nkag siab loj polumina cib yog ua los ntawm cov khoom lag luam tshwj xeeb, ntxiv los ntawm cov khoom xyaw tshwj xeeb, thiab yog tsim nyob rau hauv kev kub siab thiab raug rho tawm haujlwm ntawm qhov kub siab. Nws muaj qhov zoo ntawm cov cua kub siab rau muaj peev xwm thiab yog qhov tsim nyog rau txuam hluav taws kub tawg hauv cov hluav taws kub me thiab nruab nrab me me.
Tsawg nkag siab loj alumina cib yog tsim los ntawm kev ntxiv lwm cov zaub mov muaj txiaj ntsig rau cov txheej txheem ntau lawm los txhim kho lawv cov kev nkag mus. Nrog rau kev txhim kho ntawm muaj peev xwm loj, muaj kev sib tsoo siab kub, thiab kev sib tw ntawm cov hluav taws kub tsis muaj zog, cov sib npaug ntawm cov hluav taws kub tsis muaj zog siv hauv cov hluav taws kub tsis muaj zog.
Txoj kev txhim kho cov creep kuj
Ntxiv cov zaub mov muaj txiaj ntsig zoo ntawm kev sib txawv nkag rau qhov chaw kub tuaj yeem txhim kho cov creep tsis kam ntawm siab alumina cib.
Thaum lub creep kub yog nyob rau 1550 degree thiab 1500 degree, cov additives yog quartz thiab peb pob zeb mab. Peb lub pob zeb xa mus rau Kyanite, rhodloposite, thiab sillimanite.
Thaum lub creep kub yog nyob rau ntawm 1450 degree, thiab 1350 degree, cov additives yog Tri Mineral, Corundum, thiab ua haujlwm Alumina.
Thaum lub creep kub yog 1300 degree, 1270 degree, thiab 1250 degree, ntxiv peb lub pob zeb minerals.
Kev cuam tshuam ntawm ob peb yam ntawm kev ua tau zoo ntawm qis creep high alumina cib
1. Tus uas cuam tshuam ntawm av nplaum noo ntawm cov khoom ntawm qis creep high alumina cib
Vim yog cov dej nqus dej qis ntawm cov ntaub ntawv raw siv, cov ntsiab lus noo ntawm cov av nplaum muaj qhov cuam tshuam tseem ceeb ntawm cov khoom. Ntau dhau noo noo thiab tsis txaus ntseeg tuaj yeem ua rau muaj siab ntsws nyob rau hauv cov khoom, thiab cov ntsiab lus noo yog 2.8% rau 3. {}}}%.
Cov cawv ntawm kev tua hluav taws kub ntawm cov yam ntxwv ntawm qis creep high alumina cib
Raws li kev ua yeeb yam ntawm kev sib ntxiv ntawm cov khoom sib ntxiv, cov khoom siv tshuaj tua hluav taws xob nce nrog kev nce hluav taws kub; Cov qauv raug rho tawm haujlwm thaum 1450 degree muaj qhov siab dua thauj softening kub thiab chav sov siab kuj.
Cov cawv ntawm kev tua hluav taws ntawm kev ua yeeb yam
Siv pob zeb liab pob zeb, B, thiab - Al2o3 Micro Cov hmoov li cov khoom siv raw, lawv tau sintered kub nyob rau hauv cov cua sov nyob rau hauv cov cua sib txawv. Nws tau pom tias cov kev thauj khoom softening kub ntawm cov qauv raug rho tawm hauv kev txo cov huab cua thiab oxidizing cua yog 1600 degree thiab 1650 degree, feem. Lub thauj khoom softening ntawm cov qauv raug rho tawm hauv kev txo cov cua yog qis dua, qhia tias muaj kev ua tiav tsis zoo. Feem ntau vim yog qhov txo ntawm Sio2 nyob rau hauv kev txo cov cua, mullite decomposes nyob rau hauv kev txo cov cua, muaj kev cuam tshuam ntau rau AL2O3. Cov creep tsis kam ntawm sio3 Refractory cov ntaub ntawv.
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