I-Phosphate castable ibhekisela kwi-castable edibeneyo kunye ne-phosphoric acid okanye i-phosphate, kwaye indlela yokuqina kwayo ihambelana nohlobo lwe-binder esetyenzisiweyo kunye nendlela yokuqina.
Isibophelelo se-phosphate castable sinokuba yi-asidi ye-phosphoric okanye isisombululo esixubeneyo se-aluminiyam i-dihydrogen phosphate eveliswa yi-reaction ye-phosphoric acid kunye ne-aluminium hydroxide. Ngokuqhelekileyo, i-binder kunye ne-aluminium silicate ayiphenduli kwiqondo lokushisa lokushisa (ngaphandle kwentsimbi). Ukufudumeza kuyafuneka ukukhupha amanzi kunye nokujiya i-binder kwaye idibanise i-powder aggregate kunye ukuze ufumane amandla kwiqondo lokushisa.
Xa i-coagulant isetyenzisiweyo, ukufudumeza akufuneki, kwaye i-magnesia powder ecocekileyo okanye i-alumina sement ephezulu inokongezwa ukukhawulezisa i-coagulation. Xa i-magnesium oxide ipowder ecocekileyo yongezwa, iphendula ngokukhawuleza kunye ne-phosphoric acid ukwenza, ibangela ukuba izinto eziphikisayo zibeke kwaye zibe lukhuni. Xa i-samente ye-aluminate yongezwa, i-phosphates eneepropati ezintle ze-gelling, i-phosphates enamanzi anjenge-calcium monohydrogen phosphate okanye i-diphosphate yenziwe. I-Hydrogen calcium, njl., ibangela ukuba izinto eziphathekayo zidibanise kwaye zibe nzima.
Ukusuka kwindlela yokuqina ye-phosphoric acid kunye ne-phosphate refractory castables, kuyaziwa ukuba kuphela xa izinga lokuphendula phakathi kwesamente kunye ne-refractory aggregates kunye ne-powders ifanelekile ngexesha lenkqubo yokufudumeza inokwakheka i-refractory castable. Nangona kunjalo, izinto eziluhlaza ezichasayo ziziswa ngokulula kwinkqubo yokucolwa, ukugaya ibhola kunye nokuxuba. Baya kusabela kunye ne-agent ye-cementing kwaye bakhulule i-hydrogen ngexesha lokuxuba, okuya kubangela ukuba i-refractory castable ivuvuke, ikhulule isakhiwo kunye nokunciphisa amandla oxinzelelo. Oku kungathandekiyo kwimveliso ye-asidi ye-phosphoric eqhelekileyo kunye ne-phosphate refractory castables.
Ixesha lokuposa: Nov-04-2021