ʻO ka phosphate castable e pili ana i ka castable i hui pū ʻia me ka phosphoric acid a i ʻole phosphate, a pili kona ʻano hoʻopaʻakikī i ke ʻano o ka mea hoʻopaʻa i hoʻohana ʻia a me ke ʻano hoʻopaʻakikī.
Hiki i ka mea hoʻopaʻa o ka phosphate castable ke lilo i ka phosphoric acid a i ʻole kahi hopena hui o ka alumini dihydrogen phosphate i hana ʻia e ka hopena o ka phosphoric acid a me ka alumini hydroxide. Ma ke ʻano laulā, ʻaʻole pane ka mea hoʻopaʻa a me ka alumini silicate i ka mahana o ka lumi (koe wale nō ka hao). Pono ka hoʻomehana ʻana e hoʻomaloʻo a hoʻopaʻa i ka mea hoʻopaʻa a hoʻopaʻa i ka pauka aggregate e loaʻa ai ka ikaika ma ka mahana o ka lumi.
Ke hoʻohana ʻia ka coagulant, ʻaʻole pono ka hoʻomehana ʻana, a hiki ke hoʻohui ʻia ka pauka magnesia maikaʻi a i ʻole ka sima alumina kiʻekiʻe e hoʻolalelale i ka coagulation. Ke hoʻohui ʻia ka pauka maikaʻi o ka magnesium oxide, pane koke ia me ka waikawa phosphoric e hana, e hoʻoulu ai i nā mea refractory e hoʻopaʻa a paʻakikī. Ke hoʻohui ʻia ka sima aluminate, hoʻokumu ʻia nā phosphates me nā waiwai gelling maikaʻi, nā phosphates i loaʻa ka wai e like me ka calcium monohydrogen phosphate a i ʻole diphosphate. ʻO ka hydrogen calcium, a me nā mea ʻē aʻe, ke kumu o ka mea e hoʻopili a paʻakikī.
Mai ke ʻano hoʻopaʻakikī o ka phosphoric acid a me nā phosphate refractory castables, ua ʻike ʻia aia wale nō ke kūpono ka wikiwiki o ka hopena ma waena o ka sima a me nā refractory aggregates a me nā pauka i ka wā o ke kaʻina hana hoʻomehana hiki ke hana ʻia kahi refractory castable maikaʻi loa. Eia nō naʻe, lawe maʻalahi ʻia nā mea maka refractory i ke kaʻina hana o ka pulverization, wili pōpō a me ke kāwili ʻana. E hana pū lākou me ka mea hoʻopili a hoʻokuʻu i ka hydrogen i ka wā o ke kāwili ʻana, kahi e hoʻoulu ai i ka refractory castable e pehu, e wehe i ke ʻano a hoʻemi i ka ikaika compressive. He mea maikaʻi ʻole kēia no ka hana ʻana o ka phosphoric acid maʻamau a me nā phosphate refractory castables.
Ka manawa hoʻouna: Nov-04-2021