I-clay bonded refractory castable ibuye isetshenziswe kakhulu, nakuba i-refractoriness ingekho ephakeme kune-aluminium ephezulu ye-refractory castable, kodwa intengo ishibhile, ngaphansi kwesenzo se-sodium hacetaphosphate dispersant kanye ne-coagulant, ngokuyisisekelo thola ukusebenza kokwakhiwa, izinga lokushisa kanye nezinga lokushisa eliphansi. amandla. Ngakho-ke, ku-clay-bonded refractory castable, i-dispersant kuphela ingahlakaza ngokugcwele izinhlayiya zobumba ukuze kuncishiswe ukugcinwa kwezinhlayiya zobumba, kuyilapho i-sodium hexametaphosphatine ingadlala indima enhle yokuhlakazeka ekuqhumeni kwe-clay-bonded refractory, ukuze ubumba-boshiwe. i-refractory castable ine-fluidity enhle nokwakheka, ukuze kuqinisekiswe ukusebenza kwayo okuhle kwezinga lokushisa eliphezulu.
I-mix ratio ye-clay refractory castable iyahlukahluka. Ubumba oluhlanganiswe ne-refractory castable lunezidingo eziqondile zenkomba yobumba: i-AL2O3 i-29% ~ 35%, i-Fe2O3 ingaphansi kuka-1.8%, i-K2O ingaphansi kuka-1.1%, ukushiswa kwehliselwe ku-10% ~ 14%, ukuphikisa kukhulu kune 1670℃, futhi inebanga lokushisa elibanzi le-sintering, ekwakhiweni kwezimbiwa kufanele kube nenani elincane le-montmorillonite ne-mica nezinye izinto, ukuze ibe nokuhlangana okuhle kanye nepulasitiki. Ngaphezulu kuka-60% wobumba kufanele ube ngaphansi kuka-0.088mm ngemva kokugaya, futhi umthamo wawo ngu-7% -13%.
I-refractory aggregate ikakhulukazi isebenzisa i-clinker yobumba kanye ne-bauxite clinker ephezulu, usayizi omkhulu ongu-10mm, i-aggregate akhawunti ehlanganisa cishe u-70%, impushana ecolekileyo ikhetha okukhethekile noma I-bauxite clinker ephezulu yokugaya, ngezinye izikhathi iphinde ixutshwe ne-aluminium powder noma i-corundum powder, ama-akhawunti angaphansi kuka-0.088mm. ngaphezulu kwama-85%, ku-castable 17% ~ 25%.
Ukukhethwa okujwayelekile kukasimende we-aluminium ephezulu noma usimende we-calcium ehlanzekile njenge-ejenti eqinisayo, umthamo ngu-0.2% ~ 3.0%, ohlelweni lokuhlakazeka kobumba lwe-colloidal, engeza ama-ion ensimbi e-alkali njenge-disperant, angenza ubumba lwe-alkali ion, ngoba ama-alkali ion ane-positivity eqinile, umehluko ongaba khona, amandla anyanyekayo phakathi kwezinhlayiya zobumba. Kukhona ama-cations amaningi obumba, futhi ukuphumula kwezinhlayiya kuyanda, okuthuthukisa ijeli ye-colloidal yobumba, ikhulula amanzi amahhala, ithuthukise ukugeleza kokuphonswa, futhi ivumela ukubunjwa okunyakazayo.
Uma kuqhathaniswa ne-aluminate Cement refractory castable, i-clay refractory castable evamile inezici zamandla aphezulu, awekho ukuncipha kwamandla ekushiseni okuphakathi kanye nokumelana ne-spalling. Uma kuqhathaniswa nepulasitiki, inezici zokwakha okulula nokugcinwa okulula. Izinga lokushisa lokusetshenziswa kwalo ngokuvamile lingu-1400 -- 1500℃.I-sodium hexametaphosphate(I-Hexametaphosphate) isetshenziswe kabanzi ezithandweni zomlilo ezifana nesithando sobumba esifakwa emanzini nesithando somlilo.
Isikhathi sokuthumela: Feb-13-2023
