Hnub Tim:4,Jul,2022
Qee cov cuab yeej muaj cov khoom siv tau ntev ntev hauv 900 ℃ -1100 ℃ Kub lub xeev ntawm cov khoom siv hluav taws xob, sodium hexametaphos tshuaj nyob rau hauv refractory castable, tsuag hauv qhov siv tau kev ua tau zoo ntawm qhov kom zoo dua yog ruaj khov compressive zog thiab cov tshuaj uas pab kom txhawb cov qauv kev sib dhos ntawm cov qauv refractories, tso cai Powdery lossis granular refactories mus ua ke los qhia kom txaus lub zog.
Hauv kev tsim cov khoom siv ntev ntev, boiler, piv txwv li lub cub tawg, tshwj xeeb yog nyob rau hauv cov dej phwj thiab cua daj cua dub hauv qab, huab cua txaus thiab Cov pa luam yeeb nruab nrab thiab cov nyhuv hluav taws xob, ua rau refactory lining tawm yaig, nws cuam tshuam txog kev ua haujlwm thiab kev tsim khoom ntawm boilers.
Yog li ntawd, nws yog ib qho tsim nyog los tsim cov phau ntawv tshiab nrog kub siab, tabs tsis kam, hnav tsis kam txhim kho kev ua haujlwm ntawm cov ntaub ntawv refractory.
Sodium hexametaphosphate muaj qhov zoo hauv daim ntawv thov refractory sib piv, los ntawm kev xaiv cov nqi hauv nruab nrab thiab tsis yog muaj zog rau cov hlau Matrix, muaj kub ua hauj lwm thiab tsis-inorganic binder daim ntawv thov kub yog dav. Sodium hexametaphosphate yog hydrolyzed rau sodium dihydrogen phosphate (nah2po4) Thaum siv los ua phau ntawv refractory casible thiab tshuaj tsuag.
Nah2po4 thiab alkaline lub ntiaj teb hlau oxides, xws li Magnesia, uas tuaj yeem tsim kom hws rau hauv Mod (Pego4) 2] n thiab [mg2) 2] niv los ntawm cua sov thaum txog 500 ℃. Lub zog ntawm kev sib xyaw ua ke yog kev txhim kho ntxiv. Nws muaj lub zog siab tshaj qhov ntsuas kub ntau (nce txog 800 ℃) ua ntej rov tshwm sim ntawm cov theem ua kua.
Sodium Hexametaphosphate yog tsuas yog siv los ua cov phau ntawv rau Magnesia thiab Magnesia Chrome tsis muaj cib, castables thiab cov ntaub ntawv tso phom me me. Nyob rau hauv kev npaj ntawm caminses ntawm nws cov kua aqueous yuav tsum tau xaiv 25% ~ 30% yog qhov tsim nyog, thiab tus nqi ntawm ntxiv 8% ~ 18%. Nyob rau hauv lub premise ntawm ensuring lub zog ntawm cov sib tov, nws yuav tsum tau siv kom muaj tsawg li sai tau kom ntseeg tau qhov kev ua tau zoo ntawm cov khoom siv. Cov coagulant tej zaum yuav raug aluminate cement lossis lwm yam khoom calcium-muaj.
Refract cov ntaub ntawv refract yog cov ntaub ntawv tseem ceeb rau cov ntaub ntawv hlau thiab hlau, cov khoom siv tsiaj, kev tiv thaiv hluav taws xob, kev lag luam ib puag ncig thiab lwm yam kub. Sodium hexametaphosphaate binder kuj yog ib qho tseem ceeb ntawm cov khoom tseem ceeb rau ntau-kub muaj cov cua sov sov thiab khoom siv.
Lub Sijhawm Post: Jul-05-2022
