Corundum mullite refractory castable ndi mtundu wa zida zamphamvu zopanda mawonekedwe zogulitsa ku RS Company, zomwe zitha kugwiritsidwa ntchito mu uvuni wa simenti. Corundum mullite castables amatha kuchita zinthu zambiri monga kuphwanya kwakukulu, kukhazikika kwa kutentha kwambiri, kukana kutenthedwa kwamafuta, kuvala komanso kukana kukokoloka kwamankhwala pamakina a boiler yayikulu yamagetsi ndi zida zina zotentha kwambiri. refractory corundum mullite castable angagwiritsidwe ntchito mu ng'anjo zitsulo, simenti uvuni, galasi ng'anjo, chitsulo kupanga ng'anjo, ceramic tunnel uvuni ndi zina zotero.
Zida zazikulu za corundum mullite zotayidwa ndi zopepuka za aluminium oxide aggregate, ore apamwamba kwambiri achilengedwe a mullite ore, ndi simenti ya calcium aluminate monga cholumikizira. corundum mullite refractory castable imapangidwa kudzera pakuwotcha kwambiri ndi ng'anjo yapamwamba yamafakitale. corundum mullite flexural mphamvu ndi compressive mphamvu kuwonjezeka koyamba ndi kuchepa ndiye ndi kuwonjezeka kutentha kutentha kutentha. Ndipo mphamvu ya alumina yaying'ono ikafika 5%, mphamvu yosinthika imafika pamwamba.
Zomwe zili mu Al2O3 ndizoposa 90%, ndipo corundum mullite kutchinjiriza kuponyedwa ndi corundum monga gawo lalikulu la kristalo limasakanizidwa ndi dispersants yoyenera, coagulants, ulusi wosapanga dzimbiri, zomwe zimaphatikizidwa motsatira ndondomeko yolimba. Refractory corundum mullite castable imakhala ndi mawonekedwe ambiri, monga kulimba kwa kutentha kwambiri, kukana kuvala ndi kutsutsa, kuwongolera kutentha kwambiri, kukana kutentha, kukana dzimbiri, kusindikiza bwino komanso kukhazikika koyambirira.
Kanthu | NM-1 | NM-2 | NM-3 |
Al2O3% ≥ | 75 | 80 | 85 |
CaO% ≤ | 2 | 2 | 2 |
Kachulukidwe kachulukidwe g/cm3> | 2.75 | 2.8 | 2.9 |
Kuphwanya mphamvu Mpa(1400 ℃, 3h) | > 95 | > 105 | > 110 |
Modulus of rupture Mpa(1400℃, 3h) | > 13.5 | > 15.0 | > 16.0 |
Kuwonongeka kwa kutentha kwa chipinda cm3 | <8.5 | <7.3 | <6 |
0.2MPa, refractoriness pansi katundu chiyambi kutentha ℃ | > 1490 | > 1530 | > 1560 |
Thermal shock resistance (900 ℃, kuzirala kwa madzi)/nthawi | >20 | >20 | >20 |
Max. ntchito kutentha ℃ | 1550 | 1600 | 1600 |
Kuwothanso kusintha kwa mzere% | <-0.3 | <-0.2 | <-0.2 |
Corundum mullite refractory castable ali ndi mawonekedwe a kukula kwa yunifolomu, kukana kwambiri kwa kutentha kwa kutentha, kukhazikika kwa kutentha kwakukulu, mphamvu ya kutentha kwambiri, kukana kwambiri pansi pa katundu, kutsika kwapang'onopang'ono, kutsika kwapamwamba, kuphwanya mphamvu, kutsika kwa mzere wozungulira, kuuma kwakukulu, zabwino. kukana dzimbiri mankhwala, spalling ndi kuvala kukana. Chifukwa cha zilembo, corundum mullite kutchinjiriza castable ndi cholimba ntchito ndipo chimagwiritsidwa ntchito zosiyanasiyana mafakitale ng'anjo, kutentha ng'anjo ndi mbali zina zofunika kwambiri kutentha, monga: