Hauv kev tsim cov silica cib, cov khoom muaj pes tsawg leeg yog ib qho tseem ceeb heev los xyuas kom meej qhov ntom ntawm silica cib, tshwj xeeb tshaj yog kev tsim khoom ntawm high-density silica cib.
Vim tias cov khoom siv raw yog crispy, cov khoom yuav tawg thaum lub sij hawm sib xyaw ua haujlwm thiab molding txheej txheem. Thaum lub sij hawm hlawv, qhov nthuav thiab tawg ntawm cov khoom yuav ua rau cov khoom. Yog li ntawd, cov khoom nyob rau hauv cov khoom xyaw yog rau zus tau tej cov silica cib, nyob rau hauv tas li ntawd mus them nyiaj mloog mus rau lub feem ntau zest stacking cov ntsiab lus, lawv yuav tsum tau tag nrho xav txog cov kev cuam tshuam ntawm ntau yam xws li mixing txheej txheem, molding siab, thiab firing tej yam kev mob.
Thaum qhov loj me ntawm cov khoom siv raw khoom loj, cov cib tau yooj yim dua crushed thaum lub sij hawm molding txheej txheem. Lub ntim nthuav dav tshwm sim los ntawm kev hloov pauv ntawm cov khoom ntawm cov khoom siv raw thaum lub sij hawm firing kuj yooj yim heev rau tawg. Yog li ntawd, qhov loj me me ntawm refractory silica cib tsis tuaj yeem siab dua 3 hli; thaum cov hlab ntsha yog raw khoom; tsawg dua 2 mm. Thaum xaiv qhov loj me me, cov cib yuav tsum tsis txhob xoob thiab tawg thaum tua, thiab qhov ruaj khov yog qhov tsim nyog tshaj.
Qhov loj piv ntawm 3 ~ 1 hli yog 35 feem pua ~ 45 feem pua, qhov loj piv ntawm 1 ~ 0. 0.088mm. Qhov loj yog 35 feem pua rau 40 feem pua. Tsis tas li ntawd, vim muaj qhov cuam tshuam ntawm cov khoom zoo thiab cov ntxhia pob zeb thiab cov o me me ntawm sintering, lub ntim nthuav dav me me thaum lub sijhawm hloov pauv, uas yog qhov zoo rau lub ntim ruaj khov thaum silicon cib raug rho tawm haujlwm. Yog li ntawd, tus nqi ntawm cov hmoov zoo feem ntau tuaj yeem tsim nyog ntxiv. Mineralizers muaj qee qhov sib txuas ntawm hlau, calcium, thiab manganese Cheebtsam. Piv txwv li, coke furnace silica cib tuaj yeem ntxiv 2 feem pua CaO thiab 2 feem pua Mo, thiab qhov siab ntawm silicon cib tuaj yeem ntxiv 0.8 feem pua FeO thiab 0.2 feem pua CaO. CaO thiab FeO yog qhia nyob rau hauv daim ntawv ntawm limestone thiab hlau nplai los yog hlau dumbs, feem. Mineralizers kuj tuaj yeem ntxiv rau hom qhuav. Piv txwv li, cov undermetesticks yog siv los ua calcium uas muaj cov zaub mov, thiab nws ntxiv rau hauv daim ntawv ntawm pyromonal slag. Cov nplaum tuaj yeem siv cov ntoo ntoo sulfonate thiab txiv qaub mis nyuj.
Qhov xwm thiab kom muaj nuj nqis ntawm ob qhov khoom nyob rau hauv cov khoom ntawm cov khoom muaj feem cuam tshuam rau sintering thiab loosening lub cib nyob rau hauv tus txheej txheem ntawm firing. Rough hais tsim cov pob txha pob txha. Txawm li cas los xij, cov theem ntxhib particle hloov mus rau lub sijhawm ntev, thiab nws feem ntau tshwm sim tom qab nyias theem hloov pauv thiab lub cev pib sintering. Yog li ntawd, qhov ntim nthuav dav tsim los ntawm kev hloov pauv ntawm cov khoom tuab yog qhov tseem ceeb vim li cas rau qhov nyiam xoob thiab tawg.
Cov khoom ntxhib ntau dua, qhov qis dua lub cib pib nthuav qhov kub. Qhov ntau dua qhov nyiam tawg ntawm cov cib cib thaum tua hluav taws. Rau silica cib tsim los ntawm cov khoom sib txawv thiab cov khoom sib txawv Lub cev dawb paug yog o nyob rau hauv qhov opposite ntawm coarse hais, thiab cov hmoov zoo yog feem ntau nyob rau hauv lub pores ntawm coarse hais. Vim qhov loj ntawm qhov chaw ntawm cov hmoov zoo, qhov ntau dua cov ntxhia pob zeb, qhov ntau dua qhov nyiam ntawm kev tawg.
Cov hmoov zoo tsawg dua 0.088mm yog qhov feem ntau ntawm sintering. Vim tias qhov tshwm sim ntawm cov kua theem tuaj yeem cuam tshuam qhov kev ntxhov siab los ntawm kev nthuav dav ntawm ib feem, thiab vim tias cov hmoov zoo yog feem ntau ua rau littering, muaj cov hmoov zoo txaus hauv cov cib. Kev hloov ntawm cov ntxhib hais nyob rau hauv qhov kub hnyiab ntawm qhov khoob yog: "hloov, ib qho nthuav dav thiab ib qho rupture"; thiab cov khoom zoo yog "transforming ib-sintering thiab shrinking."
Yog li ntawd, kev tsim cov silica bricks yuav tsum tau them sai sai rau qhov loj ntawm cov khoom.
