Txhawm rau kom them nyiaj lossis txhim kho kev ua haujlwm ntawm refractory castable, nws yog ib qho tsim nyog yuav tsum ntxiv cov khoom refractory los yog cov hmoov zoo refractory (xws li cov khoom siv tshwj xeeb lossis cov khoom sib xyaw) nrog cov khoom sib txawv ntawm cov khoom siv.
Feem ntau, cov ntaub ntawv ntxiv hauv qab 5% (feem ntau) thiab tuaj yeem txhim kho qhov kev ua tau zoo thiab kev tsim kho ntawm cov khoom siv tseem ceeb raws li qhov xav tau yog hu ua admixtures;Yog tias cov ntsiab lus ntawm cov khoom siv ntxiv siab dua 5%, nws yog hu ua additive.Hauv kev siv tswv yim, cov additives kuj tseem hu ua admixtures.Admixtures feem ntau ua lub luag haujlwm hauv kev khi cov neeg ua haujlwm thiab cov ntaub ntawv yooj yim.Muaj ntau ntau yam ntawm lawv, thiab txhua yam muaj qee qhov kev thov.Yog li, cov additives yuav tsum tau txiav txim siab thiab xaiv raws li qhov yuav tsum tau ua ntawm refractory castables.
Piv txwv li:
(1) Rau refractory castables nrog loj re burning shrinkage, ib tug npaum li cas ntawm expansive ntaub ntawv nyob rau hauv cov khoom xyaw yuav tsum tau siv los them rau nws ntim shrinkage, xyuas kom meej nws ntim stability, thiab inhibit qhov spalling thiab puas ntawm cov qauv.
(2) Thaum nws yog ib qho tsim nyog los txhim kho ntxiv lossis txhim kho cov thermal shock tsis kam ntawm refractory castables, qhov tsim nyog ntawm cov ntaub ntawv toughening yuav tsum tau ntxiv rau cov khoom xyaw kom muab lawv cov kev ua haujlwm tsis zoo thiab txhim kho lawv cov thermal shock stability.
(3) Thaum nws yog ib qho tsim nyog los txhim kho thiab txhim kho cov impermeability ntawm refractory castables, ib co ntawm cov khoom uas muaj impermeability siab yuav muab ntxiv rau cov khoom xyaw inhibit qhov nkag mus rau ntawm lub slag rau hauv nws sab hauv.
(4) Txhawm rau txhim kho kev txhim kho corrosion ntawm refractory castables, qee yam khoom siv uas tuaj yeem txhim kho corrosion kuj ntawm refractory castables lossis cov ntaub ntawv uas tuaj yeem ua kom cov viscosity ntawm cov slag ntxiv rau cov khoom xyaw.
(5) Feem ntau, cov khoom sib xyaw refractory castable yuav tsum tau ntxiv nrog antioxidant los tiv thaiv oxidation puas ntawm cov khoom thiab ua kom nws lub neej kev pab.
Kev ua haujlwm siab refractory castables feem ntau siv cov khoom sib xyaw ua ke, uas yog, ntau cov khoom siv sib xyaw ua ke los xyuas kom meej qhov ntsuas kub ib txwm thiab qhov kub ntawm cov khoom siv.
Post lub sij hawm: Oct-24-2022