Dab tsi yog qhov txawv ntawm refractory castable thiab refractory yas?

1. Refractory castable

Ntau yam khoom ntawm refractory castables nyob ntawm qhov tsim nyog ntawm qhov ntau thiab ntau ntawm cov ntawv khi. Nyob rau hauv cov nqe lus ntawm lub zog, tshwj tsis yog rau cov uas ua los ntawm lub teeb hais, vim hais tias lub zog ntawm cov particle feem ntau yog siab tshaj lub zog ntawm lub binder thiab lub zog ntawm lub zog ntawm nws thiab cov particle, lub zog ntawm lub castable tiag tiag nyob ntawm lub zog ntawm daim ntawv cog lus. lub binder.

Lub fluidity ntawm refractory castables feem ntau yog siab dua li ntawm cov ntaub ntawv refractory ramming, yog li feem ntau cov refractory castables tsuas yog poured los yog rov co co kom sib tov ntawm cov khoom mus rau hauv ib tug nruj thiab tag nrho cov qauv. Tom qab lub castable yog tsim, nws yog ib qhov tsim nyog yuav tau txais txoj kev tsim nyog los txhawb lub hardening raws li lub hardening yam ntxwv ntawm lub binder. Piv txwv li, cov cement yuav tsum tau tiv thaiv nyob rau hauv qhov tsim nyog wetting tej yam kev mob. Rau qee cov hlau, cov ntsev inorganic yog qhuav, ci, thiab lwm yam.

Cov cuab yeej kub kub ntawm refractory castable kuj zoo sib xws rau ntau yam thiab ntau npaum li cas ntawm cov ntawv khi. Yog tias cov ntaub ntawv xaiv granular thiab hmoov muaj cov hluav taws kub zoo heev, thiab lub melting point ntawm lub binder yog siab thiab tsis hnov ​​​​mob nrog cov ntaub ntawv refractory los ua ib qho tsis tshua muaj yaj, nws yog ib qho tsim nyog rau lub refractory castable kom muaj hluav taws kub zoo. Yog hais tias qhov zoo ntawm cov ntaub ntawv granular thiab hmoov siv yog tsim nyog, qhov hluav taws kub tsis kam ntawm refractory castable yog tswj kom tsim nyog raws li cov ntaub ntawv, vim hais tias feem ntau los yog feem ntau los yog tag nrho cov fusible Cheebtsam yeej ib txwm muaj nyob rau hauv lub cement pob zeb nyob rau hauv lub binder. lub casting ntawm cov feem ntau aluminate MAAs, yog li ntawd lub zog ntawm tus nqi ntawm cov cement nyob rau hauv qhov kub thiab txias zog ntawm refractory castable kuj tseem ceeb heev.

2. Refractory yas

Refractories (yas refractories) yog amorphous refractories nrog siab plasticity thiab mos paste duab rau ntev. Nws yog tsim los ntawm refractory hais thiab xov, binders, plasticizers thiab ya raws. Cov khoom siv thiab cov hmoov zoo tuaj yeem siv rau lub suab nrov ntawm ntau yam ntaub ntawv: kev npaj cov ntaub ntawv, tab sis tam sim no dav siv yog aluminium silicate refractory. Thaum cov khoom thiab cov hmoov zoo ntawm aluminium silicate refractories yog siv los ua cov yas refractories, cov av nplaum mos yog siv los ua cov ntawv khi. Txhawm rau txhim kho lub zog ziab ntawm cov yas, qee qhov dej iav, phosphoric acid, aluminium sulfate thiab lwm yam ntaub ntawv cementing feem ntau yog ntxiv rau cov yas. Aluminium silicate tuaj yeem yog yas, tam sim no tau siv dav hauv ntau lub tshuab ua kom sov ramming hauv ob sab phlu thiab siv los ua ib feem ntawm cov khoom siv thermal hauv ob sab phlu.