Nws tus kheej ntws refractory castable yog lub thib plaub tiam tshiab ntawm cov ntaub ntawv refractory. Nws yog cov khoom lag luam refractory tsim raws li kev tshawb xav ua kua thiab tuaj yeem cam khwb cia thiab molded yam tsis muaj oscillation.
Refractory txheej cov ntaub ntawv yog tsim los ntawm refractory nplua aggregates thiab hmoov ntawm ib tug tej yam particle loj, nrog tsim nyog adhesives thiab additives (xws li gel accelerators, plasticizers, nthuav wattle, thiab lwm yam), tov nrog dej los yog lwm yam kua nplaum siv.
Lub ntsiab sib txawv ntawm cov coatings piv rau lwm cov monolithic refractories yog particle ratio, kab ntxiv, deletions thiab dej ntxiv. Tus nqi ntawm cov dej ntxiv rau cov txheej refractory tuaj yeem hloov nws txoj kev tsim kho tom qab hloov. Yog tias cov dej ntau ntxiv rau daim ntawv thov tshuaj tsuag, txo cov dej rau tamping daim ntawv thov.
Cov khoom ntawm refractory kis tau nyob ntawm qhov proportions ntawm refractory aggregate thiab hmoov, nrog rau hom binder. Cov txheej muaj qee yam plasticity, av nkos, tes txheej lossis cov tshuaj txau zoo nkauj, thiab feem ntau yuav tsum muaj lub zog siab, zoo tiv thaiv yaj lossis roj corrosion, zoo txheej adhesion, zoo thermal shock stability, zoo tshuaj stability, thiab tsis muaj cracking, tsis tev, thiab lwm yam. .
Hnav-resistant yas, refractory av nkos nrog tej yam yas yog hu ua refractory yas. Refractory plastics feem ntau yog siv los ua av nkos. Thaum lub sij hawm kev tsim kho, mashing nrog rauj yuav tsim cov yas deformation thiab yuav tsis tawg lossis tawg. Tom qab lub peev xwm ua haujlwm raug tso tawm, cov duab deformed tseem tuaj yeem khaws cia. Hauv Asmeskas ASTM, nws tau teev tseg tias thaum siv cov khoom ntsuas plasticity ntsuas, qhov ntsuas deformation tshaj 15% raws li cov khoom siv mash. Hauv Tuam Tshoj International, qhov deformation Performance index ntawm 15% thiab 40% yog plasticity.
Cov hom refractory plastics feem ntau yog cais raws li cov ntaub ntawv siv thiab cov khoom ntawm cov khoom tseem ceeb. Piv txwv li, raws li kev faib cov ntaub ntawv, muaj cov av nplaum nplaum, cov phosphate-bonded plastics, aluminium sulfate-bonded plastics, tar-asphalt lossis resin-bonded plastics. tos. Raws li cov khoom siv, nws tuaj yeem muab faib ua silicon, av nplaum, siab alumina, corundum, xaiv pob zeb, carbon-muaj refractory silicon carbide, magnesia thiab magnesium chromium, thiab lwm yam. Hauv lwm lo lus, cov ntaub ntawv refractory ntawm ntau yam khoom tuaj yeem ua tau. Raws li cov khoom siv refractory. Feem ntau siv cov yas refractory feem ntau yog aluminium silicate (av nplaum thiab siab alumina) yas.
Nws tus kheej ntws castables yog tsim los ntawm kev ntxiv cov hmoov sib xyaw ultra-nplua, ntxiv los ntawm cov khoom sib xyaw ua haujlwm siab, thiab xaiv cov txheej txheem nruj tshaj plaws los ua kom cov ntaub ntawv sab hauv muaj peev xwm sib txawv, molecules tawm tsam ib leeg, thiab tso siab rau lawv tus kheej qhov hnyav kom ua tiav. tus kheej ntws nyhuv yam tsis muaj oscillation.
