Clay sib raug zoo refractory castables

Av nplaum-sib khi ua refractory

Av nplaum-sib khi ua refractory tau muab cov av nplaum cais, High-alumina, Choulite thiab High-alumina lub teeb raws li hom refractory sib sau ua ke. Raws li lawv cov yam ntxwv ua tau zoo, lawv tau muab faib ua kev sib cais thiab lub zog loj-ua kom nruj-sib khi ua cov khoom ua haujlwm.

Av nplaum-sib khi cov refractory castables feem ntau yog tsim ntawm kev sib txuas, refractory agregates, hmoov thiab admixtures. Cov tshuaj lom neeg tshuaj lom neeg, lub cev thiab refractory cov khoom siv ntawm cov av nplaum uas siv rau hauv av nplaum-sib khi ua cov refractory sib txawv raws li lawv qhov keeb kwm. Cov kev xav tau ntawm av nplaum phau ntawv siv ua cov khoom siv ua kom refractory yog: al2o {3}}% ~ 35%, fe2o3<1.8%, R20<1.1%, ignition loss 10%~14%, refractoriness greater than 1670℃, and a wide sintering temperature range. In the mineral composition, it should contain a small amount of montmorillonite and mica to give it good bonding performance and plasticity. Clay powder with a fineness of less than 0.088mm should account for more than 60%, and its dosage is 7%~13%.

 

Cov txheej txheem tsim khoom ntawm avy-sib khi cov refractory castables yog los tsoo lossis zom cov kab mob uas muaj txiaj ntsig los yog corundum mullite rau hauv kev ua ke thiab hmoov. Feem ntau siv cov kev sib xyaw ua ke yog av nplaum clinker thiab High-alumina Baltalle loj ntawm 1} hli thiab ntau npaum li cas txog 70%. Refractory hmoov yog ib qho tseem ceeb ntawm cov av nplaum refractory castable. Tshwj xeeb lossis thawj-alumina bauxina bauxina bauxina bauxite clinker yuav tsum tau xaiv rau kev sib tsoo, thiab qee zaum alumina hmoov lossis corundum hmoov kuj tau ntxiv. Cov hmoov nplej refract nrog tsawg dua 0.088mm yuav tsum muaj nyiaj ntau dua 85%, thiab nws cov tshuaj yog 17% ~ 25%.

Muaj ntau ntau yam av nplaum-sib khi ua refractory castable admixtures. Raws li cov yam ntxwv ntawm cov av nplaum binders thiab kev tsim kho cov cai, dispobants thiab ua kom nrawm dua yog siv. Hauv av nplaum colloid dispersion system, alkali ion-av nplaum tuaj yeem tsim thaum alkali hlau ions muaj ntxiv. Vim tias qhov zoo ntawm alkali yog muaj zog thiab muaj peev xwm tshaj tawm cov av nplaum, uas yog qhov ua kom loj dua, thiab txhim kho cov av nplaum, thiab txhim kho cov av nkos Raws li cov nrawm nrawm rau cov av nplaum-sib xyaw ua kom cov txiv duaj muaj roj av, thiab cov tshuaj pleev xim rau, thiab cov tshuaj calmium yog ib txwm siv, thiab}}}% (sab nraud ntxiv). Thaum cov av nplaum-sib khi ua refractory casable yog tov thiab do, ob qho tib si addractory castable tsis muaj zog nyob rau hauv lub sijhawm tsawg tsawg tom qab molding. Yog li ntawd, ib tug ncua nrawm nrawm nrawm nrawm, uas tsis cuam tshuam rau cov nyhuv ntawm cov dispersant thaum lub sij hawm sib xyaw ua ke thaum lub refractory castable rau condense thiab tawv tom qab molding. Calcium aluminate muaj cov yam ntxwv saum toj no thiab muaj cov kev ua tau zoo dua, thiab lub sijhawm yuav tsum tau ua kom tau raws li lub sijhawm ua kom zoo nkauj, thiab lub sijhawm ua haujlwm ntawm cov av nplaum-sib txuas ua ke. Nyob rau tib lub sijhawm, cov nquag Alumina tsim cov tshuaj tiv thaiv nrog cov silica hauv cov khoom siv, uas tseem tuaj yeem ua kom txhim kho lub qhov hluav taws xob thiab cov kev ua tau zoo ntawm cov av nplaum castableable. Tsis tas li ntawd, txhawm rau txhim kho kev ruaj ntseg ntawm av nplaum-sib sau ua cov hmoov av, cov hmoov ntxiv xws li ultrafine hmoov thiab kyanite qee zaum ntxiv.

Piv nrog cement-sib dholractator castables cas, av nplaum-sib zog ua kom muaj zog ntawm qhov nruab nrab ntawm qhov kub thiab txias thiab muaj zog spalling kuj.

Raws li kev ua haujlwm kub thiab lwm yam kev mob ntawm cov khoom siv thermal xws li cov av nplaum-sib txawv ntawm cov av uas tsim kho tau, thiab lawv kuj tuaj yeem siv ua ke nrog hlau lossis tsis yog xim hlau rau cov hlau. Ntawm cov khoom siv thermal xws li steel rolling cua sov rauv, socining rurnaces, zoo tib yam clay Nws qhov tseem ceeb xws li burner cib, soaking cov ntaub ntawv txau, etrating av, thiab lwm yam.

Cim npe nrov: av nplaum sib dhos refractory castables, Tuam Tshoj av nplaum ua cov refractory castables, lwm tus neeg, Hoobkas