Rauv kom qhuav yog qhov txuas tseem ceeb ua ntej kev ua haujlwm ntawmsiab alumina castabletom qab kev tsim kho. Nws ncaj qha txiav txim siab txog kev pabcuam yav tom ntej ntawm lub kiln. Thaum high-aluminium refractory castables yog ci, lawv yuav tsum tau npaj kom zoo rau lub cub tawg, lub cub tawg lub sij hawm yuav tsum tau tswj kom zoo, thiab lub cub tawg cua sov nkhaus, thiab lwm yam yuav tsum tau ua nyob rau hauv nruj tej yam kev mob. Kev ua haujlwm tsis zoo ntawm lub tshuab ziab khaub ncaws tuaj yeem ua rau muaj kev sib tsoo zoo xws li castable tawg. Puas yog nws ib txwm ua rau cov castables muaj cov kab nrib pleb tom qab qhov cub kom qhuav? Dab tsi yog vim li cas rau nws tshwm sim?
Raws li ib txwm muaj, tom qab lub tshuab ziab khaub ncaws ua tiav, lub qhov cub tuaj yeem ua haujlwm ib txwm ua tom qab qhov kev lees paub, thiab cov castable kuj tuaj yeem ua tiav nws qhov kev ua tau zoo nyob rau hauv kev siv kub ntau. Muaj peb qhov laj thawj tseem ceeb rau kev tawg hauv castables tom qab lub tshuab ziab khaub ncaws:
1. Thaum lub siab alumina castable yog ntub dej sib xyaw, cov dej ntxiv tsis tau tswj tau zoo. Ntxiv dej ntau dhau yuav ua rau cov castable tsis muaj zog sib txuas, uas yuav ua rau cov castable poob. Ntxiv dej me me dhau lawm yuav ua rau qhov ua tau zoo ntawm cov castable. Yog li ntawd, tus nqi ntawm cov dej ntxiv yuav tsum tau nruj me ntsis tswj raws li qhov kev faib ua feem thiab raws li sau nyob rau hauv cov lus qhia.
2. Thaum kho high-aluminium castables, lub sij hawm kho tsis txaus, ua rau lub zog ntawm cov molded castables tsis tiav. Feem ntau, thaum kub siab, lub sijhawm kho ntawm lub castable yog 24 teev, thiab nyob rau lub caij ntuj no txias, lub sijhawm kho ntawm lub castable yog 48 teev. Vim qhov kub thiab txias, me me ntawm accelerator yuav muab ntxiv kom ceev cov coagulation ntawm castable.
3. Thaum lub refractory siab alumina castable yog ci nyob rau hauv lub cub tawg, qhov kub nce ceev heev. Thaum lub castable yog ci nyob rau hauv lub cub tawg, lub boiler cua sov nkhaus yuav tsum tau tswj. Thaum ci lub cub tawg, cov neeg ua haujlwm tsim kho feem ntau tsim qhov ci nkhaus raws li lub tshuab boiler. Thaum ci lub cub tawg, cov cua kub cua sov yog nruj me ntsis tswj kom tsis txhob muaj qhov tshwm sim ntawm cua kub ceev thiab ceev ceev. Tom qab ci, yog tias cov kab nrib pleb hauv cov castable tsis pom tseeb lossis hnyav, nws yog qhov yuav tsum tau kuaj xyuas lub sijhawm thiab kho nws nrog tib lub castable. Thaum cov kab nrib pleb loj lossis cov castable poob, cov neeg ua haujlwm tsim kho yuav tsum tau daws cov teeb meem thiab kho lawv nrog cov castables tshiab.
