Yog vim li casrefractory brickstuaj yeem tiv taus qhov kub thiab txias tuaj yeem txheeb xyuas los ntawm cov hauv qab no:
1. High refractoriness ntawm raw cov zaub mov
Cov khoom siv raw siv hauv kev tsim cov pob zeb refractory feem ntau yog cov khoom siv ntuj tsim, xws li bauxite, silica, magnesite, thiab lwm yam. Cov ntaub ntawv raw lawv tus kheej muaj siab refractory tsis kam thiab yog lub hauv paus rau ua refractories cib.
1. Bauxite: Bauxite tuaj yeem ua rau txhuas-silicon refractory hluav taws cib tom qab ua tiav. Nws lub ntsiab tivthaiv yog alumina, nrog rau qib refractory txog li 1780 degree, muaj zog tshuaj lom neeg ruaj khov, thiab lub cev zoo.
2. Silica: Cov khoom siv raw ntawm siliceous refractory cib yog silica, thiab nws cov khoom tseem ceeb yog SiO2. Cov ntsiab lus siab dua, qhov siab dua qhov refractory degree. Silica bricks yog tsim los ntawm ntuj silica raws li raw khoom, ntxiv rau qhov tsim nyog tus nqi ntawm cov mineralizer, thiab raug rho tawm haujlwm ntawm qhov kub thiab txias kom muaj lub zog kub.
3. Magnesite: Magnesite yog cov khoom siv tseem ceeb rau kev ua magnesia cib. Nws cov ntsiab lus tseem ceeb yog MgO. Magnesium oxide muaj cov khoom siv hluav taws xob zoo heev thiab tuaj yeem hloov mus ua cov muaju tom qab kub kub. Lub refractory degree yog siab tshaj 2000 degree.
2. Cov yam ntxwv ntawm cov khoom siv tsis yog xim hlau
Raws li cov khoom siv tsis muaj hlau tsis muaj hlau, refractories bricks txiav txim siab txog qib ntawm lawv siv los ntawm qib ntawm cov khoom siv raw. Inorganic non-metallic cov ntaub ntawv feem ntau muaj cov yam ntxwv ntawm siab compressive zog, siab hardness, kub tsis kam, thiab corrosion kuj. Cov khoom no tso cai rau cov hluav taws kub refractory cib kom nyob ruaj khov nyob rau hauv qhov chaw kub kub thiab tsis ua rau softening, deformation los yog melting.
3. Kev cuam tshuam ntawm kev tsim khoom
Hauv kev tsim cov txheej txheem, cov cib refractory yuav tsum tau mus los ntawm ntau qhov sib txuas xws li shaping, ziab, thiab tua. Ntawm lawv, cov txheej txheem tua hluav taws muaj qhov cuam tshuam rau qhov kub thiab txias ntawm refractory bricks. 1. High-temperature sintering: Thaum lub sij hawm sintering txheej txheem, refractory bricks yuav tsum tau sintered nyob rau hauv high kub los tsim ib tug ntom qauv thiab siab mechanical zog. Qhov siab dua qhov kub ntawm qhov hluav taws kub thiab ntev lub sij hawm firing, qhov zoo dua qhov kub ntawm refractory firebricks feem ntau. Txawm li cas los xij, kev kub hnyiab ntau dhau thiab lub sijhawm kuj tseem tuaj yeem ua rau muaj kev hloov pauv hauv cov qauv siv lead ua ntawm refractory bricks, yog li cuam tshuam rau lawv qhov kub thiab txias.
2. Kev tswj cov txheej txheem tsim khoom: Kev txawj ntse thiab kev tswj hwm ntawm cov txheej txheem tsim khoom yog qhov tseem ceeb rau qhov kub thiab txias ntawm refractory bricks. Los ntawm cov txheej txheem tsim nyog thiab kev tswj xyuas nruj, refractory hluav taws cib tuaj yeem ua kom muaj qhov kub thiab txias.
4. Kev kho kub kub ntawm lub cev tiav Lub cev tiav lawm tau kho ntawm qhov kub siab tshaj 1500 degree nyob rau hauv qhov kub kub qhov cub, uas ntxiv txhim kho qhov kub tsis kam ntawm cov refractory cib. Cov kauj ruam no ua rau cov qauv ntawm cov cib refractory denser, ua rau lawv tiv taus yaig los ntawm qhov chaw kub kub. Hauv cov ntsiab lus, vim li cas vim li cas cov cib refractory tuaj yeem tiv taus qhov kub thiab txias feem ntau yog nyob ntawm qhov siab refractory tsis kam ntawm cov ntxhia nyoos, cov yam ntxwv ntawm cov khoom siv tsis yog xim hlau, qhov cuam tshuam ntawm cov txheej txheem tsim khoom thiab kev kho kub kub ntawm lub cev tiav. Cov yam ntxwv no ua haujlwm ua ke los ua kom cov cib refractory nyob ruaj khov thiab ua tau zoo nyob rau hauv qhov chaw kub kub.
