1. Tsim kom muaj kev tua hluav taws tsim nyog
Ntxiv nrog rau qhov porosity, cov av nqus lub peev xwm ntawm cam khwb cia steel cib yog ze ze rau cov qauv pore. Thaum lub sij hawm tua hluav taws, nrog rau qhov kub ntawm qhov hluav taws kub, tus naj npawb ntawm cov qhov me me yuav txo qis, thaum lub ntim ntawm qhov loj loj nce. Yog tias qhov kub hnyiab ntxiv ntxiv, lub cev ntsuab yuav nthuav dav, thiab yuav muaj qhov loj hauv lub cib uas tuaj yeem tuav cov av, thiab qhov zoo ntawm qhov chaw yuav ua rau muaj qhov tsis zoo. Lub peev xwm tiv thaiv fouling ntawm steel pouring cib kuj cuam tshuam los ntawm cov pores loj dua 60 microns. Yog li ntawd, thaum tsim lub tshuab hluav taws xob, cov hlau nchuav cib yuav tsum muaj qee qhov me me ntawm qhov sib cais me me, thiab cov tsos ntawm cov pores loj thiab cov pores sib txuas yuav tsum tau tswj nruj me ntsis. Feem ntau hais lus, hom qauv no tuaj yeem tau txais los ntawm sintering ntawm qhov kub thiab txias me ntsis siab dua qhov ntsuas kub sintering. Tsis tas li ntawd, ua kom lub sijhawm ntev ntawm qhov kub thiab txias ntawm 1051 ~ 1150 degree tuaj yeem txhawb nqa qhov ntom ntom ntawm lub cev ntsuab, txo cov porosity kaw ntawm lub cev ntsuab, thiab zam cov nplej coarsening.
2. Kev tswj ntawm qhov khoob khoob khoob khoob
Nyob rau hauv lub pob milling txheej txheem, lub fineness ntawm cov dawb paug yuav tsum nruj me ntsis tswj. Feem ntau, 250 mesh sieve yog tsawg dua 1 feem pua, thiab qhov loj me ntawm feem ntau quartz hais yog tsawg dua 40 microns, yog li ntawd thaum lub sij hawm sintering txheej txheem, qhov kev nyuaj siab Rongsheng refractory tshwm sim los ntawm qhov sib txawv expansion coefficients ntawm quartz hais thiab iav theem thaum lub sij hawm. cua txias yog me me, thiab muaj cov kab nrib pleb tsawg dua hauv cov cib dawb. Tsis tas li ntawd, thaum tsim lub tshuab ua kom txias tsim nyog, nws yog ib qho tsim nyog los tiv thaiv microcracks ntawm quartz hais vim muaj kev ntxhov siab loj los ntawm kev hloov pauv siv lead ua ntawm 573 degree.
3. Ua tib zoo saib xyuas cov qauv tsim thiab siv lead ua hloov pauv ntawm lub cev ntsuab
Zoo sintering degree thiab tsis tshua muaj dej nqus yog cov hauv paus ntsiab lus rau cam khwb cia steel bricks kom muaj qhov zoo nto tiv thaiv fouling peev xwm. Piv txwv li, nyob rau hauv cov nqe lus ntawm lub sab hauv zoo ntawm cov khoom, lub anti fouling muaj peev xwm kuj muaj feem xyuam rau cov muaj pes tsawg leeg ntawm cov mis nyuj thiab lub xeev calcination. Qee lub sij hawm, txawm hais tias cov dej nqus ntawm cov khoom tsawg dua 0.2 feem pua, uas tsuas yog qhia tau hais tias qhov porosity ntawm microstructure raug txo kom tsawg, qhov degree ntawm crystal theem transformation tseem muaj feem cuam tshuam rau kev ua haujlwm tiv thaiv fouling. ntawm cov khoom. Piv txwv li, los ntawm qhov kev xav ntawm kev tiv thaiv fouling, lub sij hawm calcination ntev dua, qhov ntau qhov kev hloov pauv siv lead ua yog, thiab qhov muaj zog tiv thaiv fouling muaj peev xwm, qhov loj dua SiO2 / Al2O3 piv rau hauv cov mis yog, ntau dua- kub iav theem yuav yog, thiab qhov tsawg dua cov siv lead ua theem ntawm kaolin residues yog, qhov zoo dua qhov kev ua haujlwm ntawm cov khoom fouling.
