Yuav ua li cas yog vim li cas rau nquag tawg nyob rau hauv refractory castables?
Hauv kev siv cov khoom siv refractory, refractory castable yog cov khoom tseem ceeb. Txawm li cas los xij, thaum siv, Nws feem ntau raug kev txom nyem los ntawm cov teeb meem tawg. Yog li, dab tsi yog qhov ua rau muaj kev tawg ntawm cov khoom siv refractory castables?
1: Cov khoom shrinkage thiab thermal expansion
Refractory castablesyuav shrink rau ib qho twg thaum lub sij hawm kho. Yog tias qhov shrinkage loj dhau, nws yuav ua rau muaj kev ntxhov siab hauv cov castable thiab ua rau tawg. Tsis tas li ntawd, refractories castables yuav raug cuam tshuam los ntawm thermal expansion thaum siv kub. Yog tias cov thermal expansion coefficients tsis sib xws, cov kab nrib pleb kuj yuav tshwm sim.
2: Cov teeb meem zoo ntawm cov khoom nws tus kheej
Cov teeb meem zoo ntawm refractory castables kuj yog ib qho ntawm cov laj thawj rau kev tawg tsis tu ncua. Yog tias cov khoom siv raw xws li cov khoom sib sau ua ke thiab cov hmoov hauv cov castable yog qhov tsis zoo lossis qhov sib piv tsis tsim nyog, nws yuav cuam tshuam rau kev ua haujlwm ntawm cov castable thiab ua rau tawg.
3: Kev cuam tshuam ntawm ib puag ncig yam
Ib puag ncig yam tseem ceeb kuj yog ib qho ntawm qhov ua rau muaj cov kab nrib pleb nquag nyob rau hauv refractory castables. Piv txwv li, qhov kub thiab txias ib puag ncig yuav ua rau cov dej hauv cov castable evaporate sai heev, ua rau tawg. Tsis tas li ntawd, qhov kub thiab txias hloov nyob rau hauv ib puag ncig kuj yuav cuam tshuam rau cov txheej txheem curing ntawm castable, uas ua rau qhov tshwm sim ntawm cov kab nrib pleb.
4: Cov teeb meem kev tsim kho ua rau tawg hauv cov castables refractory
Teeb meem kev tsim kho ua rau cov kab nrib pleb hauv refractories castables. Muaj ntau yam teeb meem, los ntawm kev sib tov thiab ntxiv dej rau cov ntaub ntawv raw mus rau pouring mus rau curing thiab ci, uas tej zaum yuav ua rau tawg. Piv txwv li, thawj kauj ruam ntawm kev ntxiv dej: ntxiv dej ntau dhau los yog tsawg dhau yuav cuam tshuam rau qhov zoo ntawm cov castables; Cov kauj ruam thib ob yog nplawm thiab nchuav: lub sijhawm nplawm luv luv yuav ua rau tsis sib xws ntawm cov ntaub ntawv, txo lub zog, thiab tsis muaj kev tswj xyuas demoulding lub sijhawm tom qab nchuav. Zoo; tom qab ntawd qhov kev saib xyuas tsis nyob hauv qhov chaw: kev saib xyuas tsis ua raws li txoj kev thiab lub sijhawm, thiab kev ci yog pib ua ntej ncav cuag tus qauv; Nws yog qhov teeb meem ntawm kev ci: txawv refractory castables muaj qhov sib txawv ci nkhaus. Yog tias ci Yog tias qhov ci ci tsis ua raws li, yog tias qhov kub thiab txias nce nrawm heev, cov kab nrib pleb yuav tshwm sim.
Hais txog cov teeb meem kev tsim kho, nws tseem yuav tsum tau nkag siab qhov kev tsim qauv ntawm cov txheej txheem kev tsim kho, thiab nws yuav tsum tau ua los ntawm pab pawg kws tshaj lij kev tsim kho, thiab txhua tus txheej txheem yuav tsum tau tswj nruj me ntsis kom txo qis qhov tshwm sim ntawm cov kab nrib pleb.
5: Cov qauv hauv ob sab phlu tsis tsim nyog
Qhov tsim tsis tsim nyog hauv ob sab phlu yog tshwm sim nyob rau hauv tus naj npawb tsis txaus thiab qhov dav ntawm lub voj voog ncig thiab cov kab sib txuas ntev ntev. Yog li ntawd, thaum qhov kub thiab txias hauv lub cub tawg, cov ntaub ntawv refractory nthuav dav hauv ntim thiab nyem ib leeg ua rau tawg. Thaum ntsib qhov teeb meem no, nws yog ib qho tsim nyog yuav tsum tau nthuav dav cov pob qij txha ntawm lub voj voog thiab cov kab ntev ntev kom lawv tsis txhob nyem thaum cua sov thiab nthuav dav.
Txhawm rau txo qhov tshwm sim ntawm cov kab nrib pleb, peb yuav tsum tau tswj thiab kho ntau yam xws li kev xaiv cov khoom siv, kev tsim kho thiab kev saib xyuas, cov khoom zoo, thiab ib puag ncig. Nyob rau tib lub sijhawm, kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua kuj tseem yuav tsum tau siv thaum lub sijhawm siv kom ntseeg tau tias kev siv ib txwm siv thiab txuas ntxiv kev pab cuam lub neej ntawm refractory castables.
