Refractory binders yog cov khoom tseem ceeb hauv cov khoom siv refractory, ua haujlwm rau kev sib txuas ntawm ntau yam khoom siv ua ke los txhim kho tag nrho cov kev ua tau zoo thiab ruaj khov ntawm cov khoom. Cov binders no ua lub luag haujlwm tseem ceeb hauv kev tsim khoom thiab kev siv cov ntaub ntawv refractory los ntawm chemically los yog lub cev khi cov khoom sib txawv, yog li txhim kho cov khoom tiv thaiv kub, corrosion, thiab lwm yam kev xav tau.
Muaj ntau ntau hom refractory binders, suav nrog alumina cement series thiab microsilica, txhua qhov tshwj xeeb ntawm daim ntawv thov scenarios thiab qhov zoo. Xaiv txoj hlua khi yog qhov tseem ceeb rau kev txhim kho cov khoom siv refractory.
Silica fume, cov khoom siv tshuaj zoo, muaj lub cev thiab tshuaj lom neeg tshwj xeeb. Feem ntau, nws muaj 85%-98% SiO2. Rau cov ntaub ntawv tsis zoo li cov khoom siv refractory, cov hmoov siv los ntawm cov hlau silicon nroj tsuag nrog SiO2 Ntau dua lossis sib npaug li 92% feem ntau yog siv. Cov hmoov no yog cov hauv av zoo, nrog rau thaj chaw loj ntawm qhov chaw thiab muaj kev ua haujlwm siab, ua rau muaj kev ua haujlwm zoo, ntxiv dag zog, tawv, thiab hnav-resistant zog. Ntxiv silica micro hmoov rau castables txhawb sintering ntawm cov ntaub ntawv matrix ntawm 800 degree, txhim khu kev cuam tshuam kev sib raug zoo ntawm cov khoom thiab ua rau lub zog nruab nrab ntawm cov castable.
Aluminate cement, tseem hu ua refractory cement lossis high-alumina cement, yog ib hom tshwj xeeb ntawm cov cement feem ntau tsim los ntawm calcium aluminate minerals, nrog qee cov ntxhia silicate nrog. Nws cov ntaub ntawv tseem ceeb yog alumina ore (xws li kaolin, mullite, thiab lwm yam), limestone, thiab bauxite, uas yog hauv av, tov, calcined, thiab milled. Vim nws cov khoom zoo heev, aluminate cement yog dav siv nyob rau hauv high-temperature thiab corrosion-resistant engineering teb. Nws yog feem ntau categorized rau hauv CA50 series thiab peb qauv: 625 #, 725 #, thiab 925 #.
Calcium aluminate cement yog hydraulic binder ua los ntawm high-purity calcium oxide thiab alumina sintered ntawm qhov kub thiab txias, nrog alumina cov ntsiab lus nyob ib ncig ntawm 70-80%. Nws cov ntsiab lus alumina siab thiab qib impurity qis ua rau nws muaj kev ua haujlwm siab thiab ua haujlwm kub zoo, ua rau nws tshwj xeeb tshaj yog siv rau hauv qhov chaw kub kub. Ntshiab calcium aluminate cement muaj qhov zoo xws li cov ntsiab lus tsis muaj impurity, siab zog, thiab ruaj khov lub sij hawm, thiab feem ntau yog siv los npaj refractory castables uas tuaj yeem tiv taus qhov kub ntawm 1500-1800 degree lossis siab dua.
Aluminium dihydrogen phosphate (H2Al (PO4) 2) yog ib qho tseem ceeb inorganic compound nrog siab thermal thiab tshuaj stability. Nws yog insoluble nyob rau hauv huab cua thiab yog ib tug high-thermal-stability compound uas tsis decompose nyob rau hauv high kub. Nws zoo nkaus li tsis muaj xim, tsis muaj ntxhiab, kua nplaum lossis hmoov dawb. Nws yog yooj yim soluble nyob rau hauv dej, solidifies nyob rau hauv chav tsev kub, thiab muaj zog chemical bonding, high-temperature resistance, vibration resistance, spalling resistance, thiab zoo rwb thaiv tsev zog.
Cim npe nrov: Tuam Tshoj refractory binder manufacturers, lwm tus neeg, Hoobkas