Kev faib tawm ntawm cov khoom siv refractory tsis zoo li qub

Raws li kev tsim kho thiab cov khoom siv, cov ntaub ntawv amorphous refractory tuaj yeem muab faib ua cov khoom siv, cov ntaub ntawv yas, cov ntaub ntawv ramming, cov khoom siv phom, cov khoom sib xyaw qhuav, cov khoom siv, thiab cov txheej txheem.
Pouring khoom
Ib yam khoom uas muaj fluidity zoo tom qab sib tov nrog dej. Tom qab tsim, nws yuav tsum tau kho kom zoo kom khov thiab tawv, thiab tuaj yeem siv tom qab ci raws li qee qhov system. Cov khoom siv pouring yog ua los ntawm txhuas silicate clinker, corundum khoom, los yog alkaline refractory clinker li aggregates; Lub teeb yuag cov khoom siv nthuav dav perlite, vermiculite, ceramsite thiab alumina hollow pob ua aggregate. Binders yog calcium aluminate cement, iav dej, ethyl silicate, polyaluminium chloride, av nplaum los yog phosphate. Admixtures nyob ntawm seb lawv siv thiab lawv txoj haujlwm yog txhawm rau txhim kho kev tsim kho thiab txhim kho lub cev thiab tshuaj lom neeg.
Kev tsim kho thiab kev tsim cov txheej txheem ntawm cov khoom siv muaj xws li kev co, txoj kev txhaj tshuaj twj tso kua mis, txoj kev txhaj tshuaj siab, txoj kev tshuaj tsuag, thiab lwm yam. Yog hais tias ntxiv dag zog nrog stainless hlau fibers, nws tsis kam mus rau txhua yam kev co thiab thermal shock tuaj yeem txhim kho. Pouring cov ntaub ntawv yog siv rau hauv ob sab phlu rau ntau yam cua sov cua sov rauv, ore roasting furnaces, catalytic cracking furnaces, hloov dua siab tshiab rauv, thiab kuj raws li hauv ob sab phlu rau smelting furnaces thiab high-temperature melt flow channels, xws li lead-zinc melting furnaces, tin da dej, ntsev. da dej rauv, tapping los yog hlau tapping tank, steel nruas, lub tshuab nqus tsev ncig degassing ntaus ntawv nozzles rau molten steel, thiab lwm yam.
Yas
Plasticized av nplaum los yog adobe. Thaum siv cov quab yuam sab nraud, nws yooj yim rau deform yam tsis muaj cracking; Tom qab kev ntxhov siab, yuav tsis muaj deformation. Cov ntaub ntawv yas muaj xws li semi silica, av nplaum, siab alumina, zircon, carbon, thiab lwm yam., nrog rau cov khoom siv yas. Plasticizing cov ntaub ntawv yuav tsum tau ntxiv rau cov ntaub ntawv yas, uas feem ntau yog cov av nplaum siab plasticity. Plasticizers kuj siv tau los txhim kho cov yas ntawm cov av nplaum no. Plasticizers muaj xws li carboxymethyl cellulose, dextrin, lignosulfonate, thiab lwm yam. Cov binders siv rau yas muaj xws li yas av nplaum, phosphoric acid, aluminium dihydrogen phosphate, aluminium sulfate, thiab lwm yam. Aluminium oxide yas ntxiv nrog phosphoric acid los yog phosphate binder yuav hnov ​​​​mob nrog txhuas oxide thaum lub sij hawm cia. tsim insoluble aluminium orthophosphate thiab harden cov av nkos. Yog li ntawd, yuav tsum tau ntxiv cov khoom noj xws li oxalic acid, citric acid, acetylacetone, thiab lwm yam.
Txoj kev tsim kho feem ntau siv ramming lossis vibration txoj kev. Thaum siv cov yas los tsim lub hauv paus rauv tag nrho, cov hlau los yog ceramic anchors yuav tsum tau nruab. Yas tuaj yeem siv los ua ib lub hauv ob sab phlu rau cov khoom siv thermal xws li cov qhov dej ntub dej, cov cua sov hauv qhov cub, boilers, thiab lwm yam.
Cov khoom siv phom
Ib qho sib xyaw refractory siv rau patching lossis txau nrog lub tshuab txau. Raws li kev kho tshuaj tsuag, nws tuaj yeem muab faib ua cov tshuaj tsuag ntub dej (tseem hu ua cov av nkos kho), cov tshuaj tsuag qhuav qhuav, thiab hluav taws kub (nplaim) tshuaj tsuag kho. Cov phom ntub dej siv cov cua compressed los txau cov av nkos uas muaj 20-40 feem pua ​​​​cov hmoov refractory, uas tuaj yeem ua tiav cov huab cua tawg siab, siab adhesion tus nqi, thiab tuaj yeem siv rau cov txheej txheem nyias nyias. Semi qhuav gunning yog cov txheej txheem ntawm ntub refractory hmoov txau los ntawm compressed cua nrog dej ntawm lub nozzle. Cov dej ntxiv yog 11-14 feem pua, thiab tus nqi adhesion yog tsawg, tso cai rau cov phom phom tuab. Cov phom tua hluav taws yog cov phom qhuav, uas xa cov khoom siv phom mus rau cov nplaim hluav taws ntawm cov pa oxygen spray phom. Cov khoom siv phom ib nrab melts nyob rau hauv lub nozzle nplaim thiab adheres rau lub cib hauv ob sab phlu.
Cov ntaub ntawv kho cov tshuaj tsuag muaj xws li txhuas silicon, aluminium silicon zirconium, magnesium, magnesium calcium, magnesium chromium, thiab lwm yam. Cov ntaub ntawv siv tau muaj xws li sodium silicate, phosphate, polyphosphate, asphalt, resin, thiab lwm yam. Txhawm rau txhim kho qhov adhesion tus nqi, additives xws li av nplaum. , bentonite, thiab txiv qaub ntxiv. Txhawm rau kom ntseeg tau tias cov khoom siv phom tuaj yeem ua tau zoo sintering, sintering pab xws li serpentine, ntshiab olivine, txiv qaub, refractory av nplaum, hlau oxide, thiab lwm yam.