I-Phosphate castable ibhekisela ku-castable ehlanganiswe ne-phosphoric acid noma i-phosphate, futhi indlela yayo yokuqina ihlobene nohlobo lwe-binder esetshenzisiwe kanye nendlela yokuqina.
I-binder ye-phosphate castable ingaba i-phosphoric acid noma isixazululo esixubile se-aluminium dihydrogen phosphate esikhiqizwa ukusabela kwe-phosphoric acid ne-aluminium hydroxide. Ngokuvamile, i-binder ne-aluminium silicate akusabeli ekamelweni lokushisa (ngaphandle kwensimbi). Ukushisa kuyadingeka ukuze ukhiphe amanzi emzimbeni futhi ujiye isibophezelo futhi ubophe impushana ehlanganisiwe ndawonye ukuze uthole amandla endaweni yokushisa.
Lapho i-coagulant isetshenziswa, ukushisa akudingekile, futhi i-magnesia powder enhle noma usimende we-alumina ephezulu ingangezwa ukusheshisa ukuhlangana. Uma i-magnesium oxide fine powder yengezwa, isabela ngokushesha ne-phosphoric acid ukuze yakheke, okwenza izinto eziphikisayo zimiswe futhi zibe lukhuni. Lapho usimende we-aluminate wengezwa, ama-phosphates anezakhiwo ezinhle ze-gelling, ama-phosphates anamanzi afana ne-calcium monohydrogen phosphate noma i-diphosphate akhiwa. I-Hydrogen calcium, njll., ibangela ukuthi izinto zijiye futhi zibe lukhuni.
Kusukela kumshini wokuqina we-phosphoric acid kanye ne-phosphate refractory castables, kuyaziwa ukuthi kuphela uma izinga lokusabela phakathi kukasimende kanye nama-refractory aggregates kanye nezimpushana kufanelekile ngesikhathi senqubo yokushisa lapho kungakheka khona i-refractory castable enhle kakhulu. Kodwa-ke, izinto zokusetshenziswa eziphikisayo zilethwa kalula enqubweni yokugaya, ukugaya ibhola kanye nokuxuba. Bazosabela nge-ejenti ye-cementing futhi bakhulule i-hydrogen ngesikhathi sokuxuba, okuzokwenza ukuthi i-refractory castable ivuvuke, ikhulule isakhiwo futhi inciphise amandla okucindezela. Lokhu akulungile ekukhiqizeni okujwayelekile kwe-phosphoric acid kanye ne-phosphate refractory castables.
Isikhathi sokuthumela: Nov-04-2021