Kaolin wool muaj mullite-silica fibers thiab belongs rau qeb ntawm cov khoom siv hluav taws xob. Nws tiv taus hluav taws thiab tseem siv los sau cov voids hauv masonry thiab kaw qhov slotted qhov.
Kev piav qhia
Cov khoom feem ntau yog muag hauv daim ntawv yob. Nws yog tsim los ntawm melting silicon thiab aluminium oxides ntawm qhov kub thiab txias hauv qhov cub tshwj xeeb. Kaolin wool tau nquag siv rau thermal rwb thaiv tsev ntawm cov tsev rau ntau xyoo thiab tshaj ntau lwm yam ntaub ntawv nyob rau hauv nws cov yam ntxwv. Txawm hais tias niaj hnub ntau yam ntawm lwm yam khoom siv nrog cov khoom zoo sib xws, nws tau dhau los ua neeg nyiam thiab tau pom nws daim ntawv thov hauv kev lag luam. Nws ua raws li rwb thaiv tsev hauv cov khoom siv thermal, combustion chambers, heat exchangers thiab turbines. Kev faib loj tshaj plaws yog sau tseg hauv metallurgy. Kaolin wool kuj tseem siv rau hauv kev tsim cov phaj thiab lwm yam molded ntsiab.
Cov khoom muaj suab nrov thiab rwb thaiv tsev kub, tiv thaiv kev vibration loads thiab deformation. Tsis tas li ntawd, paj rwb ntaub plaub muaj lwm yam khoom uastsis raug rau ntau cov ntaub ntawv uas muaj lub hom phiaj zoo sib xws. Tus neeg sawv cev insulating tsis cuam tshuam los ntawm qhov kub siab hauv oxidizing thiab nruab nrab ib puag ncig, thaum qib ntawm kev tiv thaiv tuaj yeem nce ntxiv los ntawm kev siv chromium oxides. Txawm li cas los xij, cov cuab yeej khaws cia kub tseem ceeb tau txo qis hauv kev txo qis ib puag ncig.
txiaj ntsig
Ntoo MKRR-130 yog qhov zoo tshaj plaws rau kev tsim cov pawm nres, rwb thaiv tsev ntawm lub cub tawg thiab cov phab ntsa. Nws qhov hnyav tsawg yuav txo tau lub sijhawm thiab kev siv zog uas yuav tsum tau ua rau kev teeb tsa, thiab txo cov nqi roj. Lwm yam zoo uas tsim nyog sau cia:
- ua kom huv si fibers yog cov tiv taus rau devitrification;
- qhov ntsuas kub tsawg kawg;
- resistance rau thermal shock;
- khaws cov yam ntxwv qub nrog rov siv dua;
- qib siab ntawm lub suab rwb thaiv tsev;
- tsis cuam tshuam los ntawm cov tshuaj lom neeg ua phem, alkalis thiab hlau yaj;
- inert rau cov roj ntxhia, chav dej thiab dej;
- Cov hluav taws xob rwb thaiv tsev ua haujlwm tseem zoo ib yam txawm tias raug kub hnyiab.
Ntse
Kaolin refractory wool yog tsim los ntawm alumina, uas yog raws li quartz xuab zeb. Nyob rau hauv ib tug tshwj xeeb ore-thermal rauv, melting yog nqa tawm ntawm ib tug kub ntawm 1800 degrees. Hauv cheeb tsammelting, muaj peb electrodes, thaum nyob rau hauv qhov chaw ntawm ntau lawm tsuas muaj ob ntawm lawv. Cov txheej txheem tshuab tshuab yog siv los yaj cov khoom, nws yog raws li qhov cuam tshuam ntawm cov chav tshwj xeeb nyob rau hauv cov xwm txheej ntawm lub siab ntawm li 0.7 MPa. Lub ejection nozzle ua kom qhov kev hla ntawm tag nrho cov txheej txheem tshuab. Cov iav ua kua, av nplaum lossis cov cement tuaj yeem ua raws li kev khi.
Kaolin wool yog muag hauv yob li 10 meters ntev, tuab thiab dav yog 2 cm thiab 60 cm, raws li. Nws yog elastic, uas ua kom lub snug haum rau txhua tus qauv. Niaj hnub no, manufacturers tab tom sim txhim kho cov khoom los ntawm kev ntxiv cov khoom ntxiv, xws li yttrium oxide. Qhov no txhim kho qhov ruaj khov ntawm cov fibers thiab nthuav dav txoj hauv kev siv.
Cov khoom siv hluav taws kub hnyiab
Cov khoom siv hluav taws xob yog tsim los ntawm cov pob zeb hauv av thiab tiv taus qhov kub thiab txias, thaum lawv qhov kev ua tau zoo tseem nyob rau tib theem. Lawv yog qhov tseem ceeb hauv kev lag luam metallurgical rau kev nqa tawm distillation, evaporating thiab lwm yam txheej txheem, tsim cov txheej txheem kub kub (lub cev muaj zog, reactors) thiab qhov chaw rau lawv. Tom qab siv, cov refractories raug xa mus rau recycling.
Feem ntau, cov khoom ntawm hom no muaj cov duab plaub thiab qhov hnyav, yog li lawv tau zoo haum rau ntau yam ntaub. Tam sim no, muaj qhov txo qis hauv kev tsim cov refractories yooj yim, vim tias ntau thiab ntau cov xim tau them rau kev tsim cov mortars tshwj xeeb thiab cov pob zeb,resistant rau kub kub.
Cov khoom siv hluav taws xob: Kev tsim khoom
Cov khoom muaj lub hauv paus ceramic, yog tsim los ntawm refractory borides, nitrides, oxides thiab muaj qib siab ntawm cov tshuaj inertness thiab lub zog. Ib qho kev sib xyaw carbon feem ntau kuj siv tau. Refractories khaws lawv cov khoom thaum raug kub los ntawm 1600 degrees thiab siv nyob rau hauv ntau qhov chaw uas yuav tsum tau ua txhua yam kev ua raws li tej yam kev mob. Raws li txoj kev tsim, cov khoom tau muab faib ua ob peb hom:
- kub-nias;
- cast, smelted;
- plastic forming;
- nrum raws li cov kua nplaum nplaum;
- txiav los ntawm cov txheej txheem ua tiav lossis pob zeb.
