Izitini eziphezulu ze-chrome zenziwe nge-magnesia (MgO) ne-chromium oxide (Cr2O3) njengesithako esiyinhloko, i-periclase ne-spinel njengezingxenye eziyinhloko zamaminerali zemikhiqizo ephikisayo. I-refractoriness ephezulu yezitini, amandla okushisa aphezulu, ukumelana nokuguguleka kwe-slag okuyisisekelo, ukuzinza okuhle kakhulu kokushisa, i-acidic slag nayo inokuguquguquka okuthile. Izinto ezingavuthiwe eziyinhloko zokukhiqiza isitini esiphezulu se-chrome refractory yi-sintered magnesia ne-chromite. I-Purity magnesia impahla eluhlaza kufanele ibe phezulu ngangokunokwenzeka, izidingo zokwakheka kwamakhemikhali e-chromite yilezi: Cr2O3: 30 ~ 45%, CaO1.0 ~ 1.5%.
Izitini eziphezulu ze-chrome ikakhulukazi zihlanganisa i-Cr2O3, i-monoclinic zirconia ne-alumina powder. Ngakho-ke, ukusebenza kwe-chromebricks ephezulu kuhlobene kakhulu nokusebenza kwalezi zinto. Isitini somlilo esiphezulu se-chrome siqukethe i-chromium hemitrioxide engu-30%, futhi isitini se-chrome ephezulu sibonakala ngokumelana ne-asidi ne-alkali slags, futhi sisetshenziswa ikakhulukazi kungqimba lokuzihlukanisa, nezithando zomlilo ezingenayo insimbi, njll.
Isitini esiphezulu se-chrome refractory senziwe ngengxube yeshaja ye-chrome yekhwalithi ephezulu ne-chrome ore. Ngokwezidingo ezahlukene, lungisa okuqukethwe kwe-Cr2O3, Ukuqina kokushisa komkhiqizo nokusebenza kwezinga lokushisa eliphezulu kuyanelisa. Izitini ze-chrome eziphakeme zisetshenziswa kakhulu kuhhavini lukasimende kanye nesithando somlilo esingenamvubelo se-metallurgical njll.
Into | I-RS-Cr94 | I-RS-Cr92 | I-RS-Cr90 | I-RS-Cr80 |
I-Cr2O3 % | 94 | 92 | 90 | 80 |
I-TiO2 % | 3.8 | 3.8 | 4 | - |
I-Porosity ebonakalayo % | ≤16 | ≤20 | ≤20 | ≤20 |
Ukuminyana ngobuningi g/cm3 | ≥4.33 | ≥4.05 | ≥4.1 | ≥4.00 |
Amandla acindezelayo abandayo MPa | ≥200 | ≥100 | ≥100 | ≥100 |
0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1700 | ≥1680 | ≥1680 | ≥1670 |
Izitini eziphakeme ze-chrome zingasetshenziswa embonini yensimbi, imboni yempahla yokwakha, nezinye iziko lokuncibilikisa elingenawoyela, njll. futhi zingasetshenziswa ukumisa indawo yokucwilisa yomshini omusha owomile weziko likasimende nezithando zamathangi engilazi njengoshekha kanye ezinye iziko lezimboni.
Ifektri ye-RS refractory ingumnikezeli wezitini ophakeme we-chrome refractory ochwepheshe owasungulwa ekuqaleni kwawo-90s wekhulunyaka lamashumi amabili. Ifekthri ye-RS refractory ikhethekile ku-high chrome block iminyaka engaphezu kwengu-20. Izinzuzo zeRS Refractory Factory zimi kanje: