Av nplaum thiab qib alumina refractory castables

Kev muaj pes tsawg leeg suav nrog phau ntawv cim, refractory aggrate hmoov thiab admixtures.

Binder cov lus xaiv Binder cov av nplaum muaj cov tshuaj sib txawv, lub cev thiab cov khoom siv refractory vim muaj ntau dua li keeb kwm. Cov kev xav tau cov txuj ci rau av nplaum bindowles yog: Al2o3 cov nyiaj tau qis dua 1.8%, tsis muaj ntau dua li 1670 Nyob rau hauv cov ntxhia pob zeb, nws yuav tsum muaj ib qho me me ntawm cov tshuaj xws li montmorillonite thiab mica kom muab nws ua kom zoo ua kom zoo rau cov khoom lag luam thiab cov yas. Cov av nplaum uas muaj tsawg dua 0.088mm yuav tsum tau nyiaj ntau dua 60%, thiab nws cov koob tshuaj yog 7% ~ 13%.

 

Refractory aggregates thiab hmoov tsim nyog calcied silicon-txhuas clinker lossis corundum mullite yog tsim los ntawm kev sib tsoo lossis sib tsoo. Qhov feem ntau siv refractory artgregates yog cov av nplaum clinker thiab high-alumina betalle loj ntawm feem ntau 1}} mm thiab ntau npaum li cas txog li 70%. Refractory hmoov yog ib qho tseem ceeb ntawm cov av nplaum refractory castable. Qib qib tshwj xeeb lossis thawj qib siab Clinker yuav tsum raug xaiv rau kev sib tsoo, thiab qee zaum Alumina Hmoov lossis Collundum hmoov kuj tau ntxiv. Lub zoo ntawm cov hmoov refractory tsawg dua 0.088mm, suav nyiaj rau ntau tshaj 85%, thiab nws cov tshuaj yog 17% ~ 25%.

Muaj ntau hom conmixtures. Raws li cov yam ntxwv ntawm av nplaum binders thiab kev tsim kho cov cai, cov neeg tsis txaus siab thiab ua kom nrawm dua (saib admixtures). Hauv av nplaum colloi dispersions, alkali ions tuaj yeem tsim alkali ion-av nplaum thaum alkali hlau ions muaj. Vim tias cov alkali yog cov txiaj ntsig zoo tshaj plaws, cov av nplaum muaj ntau ntxiv, cov av nplaum muaj ntau ntxiv, cov av nplaum ntau dua, uas tau txais txiaj ntsig zoo tshaj plaws, uas yog cov av nplaum ntau dua, uas yog qhov muaj txiaj ntsig zoo rau kev sib xyaw thiab moulding. Raws li cov nrawm nrawm rau cov av nplaum cam refractory, High Alumina Maas yog xaiv cov nqaij ntsuab yog feem ntau xaiv, thiab nws cov koob tshuaj}. 2% ~ {%. Thaum cov av nplaum refractory tau sib xyaw thiab do, ob lub ntsej muag tau ntxiv rau lub sijhawm molding, yog li ntawd cov refractory castables ua tau 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 kev ua haujlwm siab tom qab hu rau lub sijhawm moulding, thiab lub sijhawm uas yuav tsum tau ua kom tau los nag. Nyob rau tib lub sijhawm, cov nquag Alumina tsim cov khoom siv hluav taws xob nrog cov silica nyob rau hauv cov khoom siv, uas kuj tseem tuaj yeem ua kom txhim kho cov khoom ruaj khov thiab kev ua yeeb yam ntawm cov av nkos. Tsis tas li ntawd, txhawm rau txhim kho qee yam khoom ntawm av nplaum refractory, ntxiv xws li ultrafine hmoov thiab kyanite qee zaum ntxiv.

Kev ua tau zoo piv nrog Mement Refractory castable, lub zog kub muaj zog ntawm qhov kub thiab txias thiab muaj zog spalling kuj.

Daim ntawv thov raws li kev ua haujlwm thiab lwm yam kev mob ntawm cov khoom siv thermal xws li cov av nplaum-sib txawv cov khoom siv hluav taws xob tuaj yeem siv ua ke nrog cov hlau lossis cov hlau tsis sib xws. Cov khoom siv ua kom pom zoo ib yam nkaus-sib txuas ua ke cov khoom siv hluav taws xob tuaj yeem siv los ua cov khoom siv hluav taws xob xws li cov tshuab thermal thiab Sintering tshuab hluav taws xob taws. High-zog av nplaum-sib khi cov refractory castables yog siv rau cov kab ke ntawm burapping, soulfing rauv phom thiab qee qhov ntawm cov khoom siv cub.

Cim npe nrov: Av nplaum thiab High Alumina Refractory Casab, Tuam Txhab Pem Teb Thiab Qib Alumina Siab Refractable Chaw Tsim Tshuaj, Chaw muag khoom, Hoobkas