Makina owumitsa ndi kusungirako koyenera kwa phosphate refractory castables

Phosphate castable imatanthawuza kuponyedwa pamodzi ndi phosphoric acid kapena phosphate, ndipo njira yake yowumitsa imagwirizana ndi mtundu wa binder womwe umagwiritsidwa ntchito komanso njira yowumitsa.

Chomangira cha phosphate castable chikhoza kukhala phosphoric acid kapena njira yosakanikirana ya aluminiyamu dihydrogen mankwala opangidwa ndi zomwe phosphoric acid ndi aluminiyamu hydroxide. Kawirikawiri, binder ndi aluminiyamu silicate samachita kutentha kwa chipinda (kupatula chitsulo). Kutentha kumafunika kuti muchepetse madzi m'thupi ndikumangirira chomangira ndikumangirira ufa wophatikizika pamodzi kuti mupeze mphamvu kutentha.

Pamene coagulant imagwiritsidwa ntchito, kutentha sikofunikira, ndipo ufa wabwino wa magnesia kapena simenti yapamwamba ya alumina ikhoza kuwonjezeredwa kuti ifulumizitse coagulation. Magnesium okusayidi ufa wabwino ukawonjezedwa, umachita mwachangu ndi phosphoric acid kupanga, zomwe zimapangitsa kuti zinthu zosokoneza zikhazikike ndikuwumitsa. Simenti ya aluminate ikawonjezeredwa, ma phosphates okhala ndi zinthu zabwino za gelling, ma phosphates okhala ndi madzi monga calcium monohydrogen phosphate kapena diphosphate amapangidwa. Kashiamu wa haidrojeni, ndi zina zotero, zimapangitsa kuti zinthuzo zikhale zolimba komanso kuumitsa.

Kuchokera kuumitsa limagwirira wa asidi phosphoric ndi mankwala refractory castables, amadziwika kuti pamene mlingo anachita pakati pa simenti ndi aggregates refractory ndi ufa ndi yoyenera pa Kutentha ndondomeko akhoza kwambiri refractory castable kupangidwa. Komabe, zopangira refractory zimabweretsedwa mosavuta munjira ya pulverization, mphero ya mpira ndi kusanganikirana. Adzachitapo kanthu ndi cementing agent ndi kumasula haidrojeni panthawi yosakaniza, zomwe zidzachititsa kuti refractory castable ikhale yotupa, kumasula kapangidwe kake ndi kuchepetsa mphamvu yopondereza. Izi sizothandiza kupanga wamba phosphoric acid ndi phosphate refractory castables.