I-phosphate castable ibhekisela ku-castable ehlanganiswe ne-phosphoric acid noma i-phosphate, futhi indlela yayo yokuqinisa ihlobene nohlobo lwe-binder esetshenzisiwe kanye nendlela yokuqinisa.
I-binder ye-phosphate castable ingaba yi-phosphoric acid noma isixazululo esixubile se-aluminium dihydrogen phosphate ekhiqizwa ukusabela kwe-phosphoric acid kanye ne-aluminium hydroxide. Ngokuvamile, i-binder kanye ne-aluminium silicate azisabeli ekushiseni kwegumbi (ngaphandle kwensimbi). Ukushisa kuyadingeka ukuze kuncishiswe amanzi futhi kuhlanganiswe i-binder futhi kuhlanganiswe i-aggregate powder ukuze kutholakale amandla ekushiseni kwegumbi.
Uma kusetshenziswa i-coagulant, akudingeki ukushisa, futhi kungafakwa i-magnesia powder encane noma i-alumina cement ephezulu ukuze kusheshiswe ukuqina kwe-coagulation. Uma kufakwa i-magnesium oxide fine powder, isabela ngokushesha ne-phosphoric acid ukuze yakheke, okubangela ukuthi izinto eziphikisayo ziqine futhi ziqine. Uma kufakwa i-aluminate cement, kwakheka ama-phosphate anezakhiwo ezinhle ze-gelling, ama-phosphate aqukethe amanzi njenge-calcium monohydrogen phosphate noma i-diphosphate. I-hydrogen calcium, njll., ibangela ukuthi izinto ziqine futhi ziqine.
Kusukela endleleni yokuqinisa ama-castable aphikisayo e-phosphoric acid kanye ne-phosphate refractory, kwaziwa ukuthi kuphela lapho izinga lokusabela phakathi kwesimende kanye nama-aggregates aphikisayo kanye nophuphu lifanele ngesikhathi senqubo yokushisa lapho kungakhiwa khona i-castable ephikisayo enhle kakhulu. Kodwa-ke, izinto zokusetshenziswa eziphikisayo zifakwa kalula enkambisweni yokugaywa, ukugaya ibhola kanye nokuxuba. Zizosabela ne-cementing agent futhi zikhiphe i-hydrogen ngesikhathi sokuxuba, okuzokwenza i-castable ephikisayo ivuvuke, ikhulule isakhiwo futhi inciphise amandla okucindezela. Lokhu akulungile ekukhiqizweni kwama-castable avamile e-phosphoric acid kanye ne-phosphate refractory.
Isikhathi sokuthunyelwe: Novemba-04-2021