ʻO ka pālolo i hoʻopaʻa ʻia refractory castable ka mea maʻamau i hoʻohana ʻia, ʻoiai ʻaʻole ʻoi aku ka kiʻekiʻe o ka refractoriness ma mua o ke kiʻekiʻe o ke alumini refractory castable, akā ʻoi aku ka maikaʻi o ke kumukūʻai, ma lalo o ka hana o ka sodium hacetaphosphate dispersant a me ka coagulant, loaʻa maoli ka hana hana, ka mahana a me ka mahana haʻahaʻa. ikaika. No laila, i loko o ka pālolo-hoʻopaʻa refractory castable, wale ka dispersant hiki ke hoʻopuehu piha i ka pālolo particles e hōʻemi i ka huna o ka pālolo particles, oiai ka sodium hexametaphosphatine hiki ke pāʻani i ka maikai dispersion kuleana i loko o ka pālolo-hoʻopaʻa 'ia refractory castable, no laila, i ka pālolo-hoʻopaʻa 'ia. refractory castable i maikaʻi fluidity a me ka constructability, i mea e hōʻoia i kona maikai kiʻekiʻe wela hana.
ʻOkoʻa ka ratio hui o ka pālolo refractory castable. ʻO ka pālolo i hui pū ʻia me refractory castable loaʻa nā koi kikoʻī kikoʻī no ka pālolo: ʻo AL2O3 ka 29% ~ 35%, ʻo Fe2O3 ka liʻiliʻi ma mua o 1.8%, ʻoi aku ka liʻiliʻi o K2O ma mua o 1.1%, ua hoʻemi ʻia ke ahi i 10% ~ 14%, ʻoi aku ka refractoriness ma mua o 1.1%. 1670 ℃, a loaʻa iā ia kahi ākea ākea sintering, i loko o ka hui mineral pono e loaʻa kahi liʻiliʻi o ka montmorillonite a mika a me nā mea ʻē aʻe, i loaʻa iā ia ka paʻa maikaʻi a me ka plasticity. ʻOi aku ma mua o 60% o ka pālolo pono e emi iho ma mua o 0.088mm ma hope o ka wili ʻana, a ʻo kāna dosage he 7% -13%.
Hoʻohana nui ka refractory aggregate i ka clinker pālolo a me ka clinker bauxite kiʻekiʻe, 10mm ka nui, ka huina nui ma kahi o 70%, koho ʻia ka pauka maikaʻi kūikawā a i ʻole kahi clinker bauxite kiʻekiʻe no ka wili ʻana, i kekahi manawa hui pū ʻia me ka pauka alumini a i ʻole ka pauka corundum, emi iho ma mua o 0.088mm helu. no ka oi ma mua o 85%, ma castable 17% ~ 25%.
ʻO ke koho nui o ka sima alumini kiʻekiʻe a i ʻole ka sima calcium maʻemaʻe e like me ka mea paʻakikī, ʻo ke ʻano he 0.2% ~ 3.0%, i loko o ka pālolo colloidal dispersion system, hoʻohui i nā ion metala alkali e like me ka dispersant, hiki ke hana i ka pālolo ion alkali, no ka mea he ikaika ikaika nā ion alkali, ʻokoʻa kūpono, ikaika hoʻopailua ma waena o nā mea pālolo. Nui aʻe nā cations i loko o ka pālolo, a piʻi ka wā o nā ʻāpana, e hoʻoikaika ana i ka gel colloidal o ka pālolo, hoʻokuʻu i ka wai manuahi, hoʻonui i ka wai o ka castable, a kūpono i ka hoʻoulu ʻana i ka molding.
Hoʻohālikelike ʻia me ka aluminate cement refractory castable, maʻamau pālolo refractory castable i nā hiʻohiʻona o ka ikaika kiʻekiʻe, ʻaʻohe emi o ka ikaika ma ka mahana wela a me ke kū'ē i ka spalling. Hoʻohālikelike ʻia me ka plastic, loaʻa iā ia nā hiʻohiʻona o ka hana maʻalahi a me ka mālama maʻalahi. ʻO ka mahana hoʻohana maʻamau he 1400 -- 1500 ℃.ʻO ka sodium hexametaphosphate(Hexametaphosphate) ua hoʻohana nui ʻia i loko o nā umu ahi e like me ka pālolo refractory castable soaking umu a me ka umu wela.
Ka manawa hoʻouna: Feb-13-2023
