Lub zog yooj yimmagnesia cibKev muag khoom, Cov neeg siv khoom hauv Malaysia xaj 25 Tons
1. Kev xaiv thiab kev txheeb xyuas cov khoom ntawm magnesium raw khoom
Hauv kev npaj cov txheej txheem magnesium refractory cib, kev xaiv ntawm magnesium raw cov ntaub ntawv ncaj qha cuam tshuam rau qhov zoo thiab kev ua tau zoo ntawm cov khoom kawg. Cov khoom siv magnesium feem ntau suav nrog lub teeb hlawv magnesium, magnesium carbonate thiab serpentine. Lub teeb-hlwb magnesium muaj cov yam ntxwv ntawm siab purity thiab cov qauv zoo ib yam, yog li nws tau siv dav hauv kev npaj cov ntaub ntawv refractory. Nws qhov zoo dua yog tias nws tseem tuaj yeem tuav cov qauv ruaj khov ntawm qhov kub thiab txias, tiv thaiv thermal shock thiab tshuaj yaig, thiab tsim nyog rau cov chaw ua haujlwm kub kub. Cov ntaub ntawv nyoos xws li magnesium carbonate thiab serpentine muaj tus nqi qis, tab sis kuj hais lus, lawv muaj ntau impurities, yog li lawv yuav tsum tau ua kom zoo thiab kho. Thaum xaiv magnesium raw cov ntaub ntawv, nws yuav tsum tau ua tib zoo xav txog tej yam xws li nws cov tshuaj muaj pes tsawg leeg, siv lead ua qauv thiab thermal zog los xyuas kom meej tias cov khoom zaum kawg muaj kev ruaj khov thiab zoo heev refractory zog.
2. Txoj kev npaj ntawm cov txheej txheem magnesia bricks
Txoj kev impregnation soaks magnesium raw khoom nyob rau hauv ib tug tov uas muaj tej additives. Los ntawm adsorption thiab nkag mus, cov additives yog sib npaug ntawm qhov chaw ntawm cov khoom siv raw, nrog cov qauv ntom ntom thiab ua haujlwm zoo. Cov txheej txheem kev npaj yog qhov yooj yim thiab yooj yim rau kev tswj, thiab cov txheej txheem ntxiv txheej tuaj yeem tsim rau saum npoo ntawm cib, uas txhim kho cov slag kuj thiab alkali tsis kam ntawm refractory cib. Tsis tas li ntawd, txoj kev impregnation tuaj yeem ua tiav kev tswj xyuas zoo ntawm microstructure thiab siv lead ua lub koom haum ntawm lub cib, ntxiv kev txhim kho tag nrho cov kev ua tau zoo ntawm alkaline magnesia refractory cib. Nias thiab sintering txheej txheem yog ib qho tseem ceeb ntawm kev npaj alkaline magnesia refractory cib. Nyob rau hauv cov txheej txheem npaj raw khoom, nws yog ib qho tsim nyog los xaiv cov khoom siv magnesia uas tsim nyog thiab ntxiv cov nqi tsim nyog ntawm cov binders thiab lwm cov ntaub ntawv pabcuam raws li xav tau. Thaum lub sij hawm molding txheej txheem, qhov sib tov yog nias los ntawm pwm los ua ib lub cib ntawm qhov xav tau loj thiab cov duab. Tus yuam sij rau nias thiab molding yog los tswj lub siab thiab moulding ceev kom ntseeg tau tias lub cib, yog li ua kom muaj txiaj ntsig zoo ntawm cov khoom kawg. Tom qab molding, lub cib yuav tsum tau qhuav. Lub hom phiaj ntawm kev ziab yog kom tshem tawm cov dej noo ntawm lub cib kom tsis txhob tawg thiab deformation thaum lub sij hawm sintering. Lub cib qhuav yog muab tso rau hauv ib lub qhov cub rau high-temperature sintering. Cov txheej txheem sintering yog ib qho kev sib txuas tseem ceeb tshaj plaws hauv tag nrho cov txheej txheem npaj. Nws lub hom phiaj yog ua kom cov khoom sib txawv hauv cov cib ua rau muaj kev kub ntxhov los tsim cov qauv siv lead ua ruaj khov, yog li muab cov cib refractory zoo heev refractory.
3. Kev cuam tshuam ntawm cov txheej txheem tsis ua haujlwm
Nyob rau hauv tus txheej txheem ntawm kev npaj alkaline magnesia bricks, kev xaiv thiab tswj cov txheej txheem tsis muaj ib qho tseem ceeb ntawm kev ua tau zoo ntawm cov khoom kawg. Tsim nyog sintering kub tuaj yeem txhawb kev sib koom ua ke ntawm cov khoom siv raw khoom thiab txhim kho qhov ceev thiab lub zog ntawm lub cev cib. Txawm li cas los xij, qhov kub siab sintering ntau dhau tuaj yeem ua rau cov nplej loj hlob sai heev, yog li txo cov thermal poob siab ntawm lub cev cib. Yog li ntawd, nyob rau hauv cov txheej txheem kev npaj, nws yog ib qhov tsim nyog los tswj qhov kub ntawm sintering raws li cov yam ntxwv thiab cov kev xav tau ntawm cov ntaub ntawv tshwj xeeb kom tau txais qhov zoo tshaj plaws cib kev ua tau zoo. Tsim nyog ncua sij hawm sintering pab kom lub uniformity thiab stability ntawm lub internal qauv ntawm lub cib lub cev thiab txhim kho nws refractoriness thiab alkali tsis kam. Txawm li cas los xij, lub sij hawm sintering ntev dhau lawm yuav ua rau muaj kev siv zog ntau ntxiv thiab txo qhov ua tau zoo. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tswj xyuas lub sijhawm sintering thaum ua kom cov khoom zoo kom ua tiav kev lag luam thiab kev tsim khoom. Tsim nyog nias siab tuaj yeem txhawb kev sib raug zoo ntawm cov khoom siv raw, txhim kho qhov ntom ntom thiab lub zog ntawm lub cev cib, yog li txhim kho nws cov refractoriness thiab slag kuj.
