Cov kev taw qhia ntawm cov khoom hluav taws kub resistant yog lub hauv paus tseem ceeb hauv cov txheej txheem kev yuav khoom, uas txiav txim siab qhov zoo ntawm cov khoom hluav taws kub. Muaj 7 lub ntsiab lus tseem ceeb rau cov pob hluav taws kub tiv thaiv hluav taws, suav nrog cov ntsiab lus al2o3, porosity, thiab kub khov ruaj khov, thiab thermal poob siab heev. Hauv qab no, noj cov khoom siv hluav taws xob siab aluminium ua piv txwv, txheeb xyuas lawv cov kev qhia.
1. Al2O3 cov ntsiab lus
Cov ntsiab lus nrov ntawm Al2O3 yog cov ntsiab lus ntawm alumina hauv cov khoom siv refractory pob, uas txiav txim siab lwm yam khoom. Yog li ntawd, nws yog lub ntsiab kev ua tau zoo qhia ntawm hluav taws kub resistant npas.
Raws li cov ntsiab lus txhuas, cov khoom siv hluav taws xob siab aluminium tuaj yeem muab faib ua plaub hom: tshwj xeeb siab aluminium pob, nrog RQA-80% txhuas cov ntsiab lus ntawm 80%; Thawj qib siab aluminium pob, RQA-75, nrog cov ntsiab lus txhuas ntawm 75%; Secondary high aluminium pob, RQA-65, nrog cov ntsiab lus txhuas ntawm 65%; Qib III siab aluminium pob, RQA-55, nrog cov ntsiab lus txhuas ntawm 55%.
2. Fe2O3 cov ntsiab lus
Cov ntsiab lus Fe2O3 yog hais txog cov ntsiab lus ntawm cov hlau oxide hauv cov khoom. Tsis zoo li Al2O3 cov ntsiab lus tau hais los saum no, cov ntsiab lus hlau yog impurity nyob rau hauv siab aluminium spheres. Cov ntsiab lus qis dua, qhov khoom zoo dua qub. Nyob rau hauv tus qauv, tsis muaj qhov yuav tsum tau muaj meej meej rau Chav Kawm III thiab II siab aluminium hluav taws kub resistant npas. Thawj qib siab aluminium hluav taws kub resistant pob yuav tsum tsis pub tshaj 1.8%, thiab tshwj xeeb siab txhuas hluav taws kub resistant pob yuav tsum tsis txhob ntau tshaj 1.6%.
3. Tej qhov ntom ntom
Volume density yog qhov piv ntawm qhov qhuav ntawm cov hluav taws kub resistant pob rau tag nrho cov ntim, hauv g / cm3. Volume density feem ntau sawv cev rau qhov ntom ntawm lub pob hluav taws kub. Feem ntau, qhov ntom ntom ntawm cov khoom siv hluav taws kub tiv taus zoo sib xws nrog lawv cov porosity thiab ntxhia muaj pes tsawg leeg. Hauv cov pob refractory, qhov ntau dua qhov ntom ntom, qhov khoom zoo dua qub. Lub ntim ntim ntawm plaub hom hluav taws kub resistant npas yog: tshwj xeeb high aluminium npas loj dua los yog sib npaug rau 2.7; Qib 1 siab aluminium pob ntau dua lossis sib npaug ntawm 2.5; Secondary high aluminium pob Ntau dua los yog sib npaug rau 2.3; Qib 3 siab aluminium pob Ntau dua lossis sib npaug rau 2.1.
4. Pom porosity
Lub porosity yog qhov piv ntawm qhov ntim ntawm qhov qhib qhov pores ntawm cov hluav taws kub resistant pob rau tag nrho cov ntim. Feem ntau, cov slag thiab teeb meem gases nyob rau hauv lub kiln corrode lub hluav taws kub resistant pob nws tus kheej los ntawm lub qhov qhib, yog li qhov me me lub porosity ntawm hluav taws kub resistant pob, qhov zoo dua. Lub porosity ntawm plaub hom hluav taws kub resistant npas yog: super high aluminium balls Tsawg dua los yog sib npaug li 22%; Qib 1 siab aluminium pob Tsawg dua lossis sib npaug li 24%; Secondary high aluminium pob Tsawg dua lossis sib npaug li 26%; Qib III siab aluminium pob Tsawg dua lossis sib npaug li 28%.
5. Qhov kub thiab txias tiv taus tus nqi hluav taws xob
Qhov ntsuas kub ntawm qhov ntsuas kub ib txwm muaj qhov cuam tshuam loj rau kev tsim khoom, kev thauj mus los, thiab kev siv cov khoom siv hluav taws xob tiv thaiv hluav taws, yog li yuav tsum muaj tus nqi siab dua. Nws chav nyob tau qhia hauv KN. Chav tsev kub siab tiv thaiv tus nqi ntawm plaub hom hluav taws kub resistant npas yog: ultra-siab aluminium npas Ntau dua los yog sib npaug rau 25; Qib 1 siab aluminium pob loj dua lossis sib npaug li 15; Secondary high aluminium pob Ntau dua los yog sib npaug rau 10; Qib 3 siab aluminium pob ntau dua lossis sib npaug rau 8.
6. Load softening kub
Lub load softening kub ntawm hluav taws kub resistant npas yog hais txog qhov kub ntawm qhov deformation tshwm sim thaum siv. Lub load softening kub ntawm plaub hom hluav taws kub resistant npas yog: ultra-siab aluminium npas Ntau tshaj los yog sib npaug rau 1530 degree; Thawj lub pob aluminium siab tshaj lossis sib npaug ntawm 1480 degree; Secondary high aluminium pob Ntau dua los yog sib npaug rau 1450 degree; Qib III siab aluminium pob Ntau dua lossis sib npaug li 1400 degree.
7. Thermal shock stability
Thermal shock stability yog lub peev xwm ntawm cov pob refractory los tiv thaiv kev hloov pauv ntawm qhov txias thiab kub kub. Cov ntsuas kev ua tau zoo ntawm cov pob hluav taws tiv thaiv feem ntau yog qhia nyob rau hauv cov nqe lus ntawm cov sij hawm nyob rau hauv cov dej txias ntawm 1100 degree. Lub thermal shock stability ntawm plaub hom hluav taws kub resistant npas yog: ultra-high aluminium balls Ntau tshaj los yog sib npaug rau 10 zaug; Qib 1 siab aluminium pob, Qib 2 siab aluminium pob, Qib 3 siab aluminium pob ntau dua lossis sib npaug li 15 npaug
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