ʻO ka mīkini paʻakikī a me ka mālama pono ʻana i nā castables refractory phosphate

ʻO ka Phosphate castable e pili ana i kahi castable i hui pū ʻia me ka phosphoric acid a i ʻole phosphate, a ʻo kona ʻano paʻakikī e pili ana i ke ʻano o ka mea hoʻopili i hoʻohana ʻia a me ke ʻano paʻakikī.

ʻO ka mea paʻa o ka phosphate castable hiki ke phosphoric acid a i ʻole ka hui ʻana o ka alumini dihydrogen phosphate i hana ʻia e ka hopena o ka waikawa phosphoric a me ka alumini hydroxide. ʻO ka mea maʻamau, ʻaʻole pane ka mea hoʻopaʻa a me ka silicate aluminika i ka wela lumi (koe wale ka hao). Pono ʻia ka hoʻomehana e hoʻomaloʻo a hoʻopaʻa i ka mea hoʻopili a hoʻopaʻa pū i ka pauka aggregate e loaʻa ai ka ikaika ma ka lumi wela.

Ke hoʻohana ʻia ka coagulant, ʻaʻole koi ʻia ka hoʻomehana, a hiki ke hoʻohui ʻia ka pauka magnesia maikaʻi a i ʻole ka sima alumina kiʻekiʻe e hoʻonui i ka coagulation. Ke hoʻohui ʻia ka pauda maikaʻi o ka magnesium oxide, hoʻopili koke ʻo ia me ka waikawa phosphoric e hoʻokumu ʻia, e hoʻonohonoho a paʻakikī nā mea refractory. Ke hoʻohui ʻia ka sima aluminate, hoʻokumu ʻia nā phosphates me nā waiwai gelling maikaʻi, nā phosphate i loko o ka wai e like me ka calcium monohydrogen phosphate a i ʻole diphosphate. ʻO ka calcium hydrogen, a me nā mea ʻē aʻe, e hoʻopuʻi a paʻakikī ka mea.

Mai ka hana paʻakikī o ka phosphoric acid a me ka phosphate refractory castables, ʻike ʻia aia wale nō ke kūpono ka hopena o ka hopena ma waena o ka sima a me nā ʻāpana refractory a me nā pauka i ka wā o ka hoʻomehana ʻana hiki ke hoʻokumu ʻia kahi castable refractory maikaʻi loa. Eia nō naʻe, lawe maʻalahi nā mea maka refractory i ke kaʻina o ka pulverization, ka wili pōleʻa a me ka hui ʻana. E hana lākou me ka mea hoʻoheheʻe a hoʻokuʻu i ka hydrogen i ka wā e hui pū ai, e hoʻohūhū ai ka refractory castable, wehe i ka hale a hoʻemi i ka ikaika compressive. ʻAʻole maikaʻi kēia no ka hana ʻana i ka waika phosphoric maʻamau a me ka phosphate refractory castables.