LubCov roj hmab alumina ceramic uas tsis yooj yim hnavyog ib yam khoom sib xyaw ua ke uas siv dav hauv kev tiv thaiv kev hnav khaub ncaws hauv kev lag luam. Nws ua kom lub neej ua haujlwm ntawm cov khoom siv ntev dua thaum muaj xwm txheej hnyav los ntawm kev sib xyaw ua ke qhov kev tiv thaiv kev hnav khaub ncaws siab ntawm alumina ceramic nrog rau cov khoom siv cushioning ntawm roj hmab. Lub liner no siv alumina ua cov khoom siv tseem ceeb, nrog rau kev ntxiv cov hmoov ceramic thiab silicon oxide, sintered ntawm qhov kub siab li ntawm 1700 ° C. Nws cov ntsiab lus alumina feem ntau tsis tsawg dua 95%, qhov ceev ncav cuag 3.5-3.9 g / cm³, thiab Rockwell hardness siab txog HRA85-90, ua kom ntseeg tau tias muaj kev tiv thaiv kev hnav khaub ncaws zoo heev. Hauv kev siv tiag tiag, lub liner no qhia txog ntau txheej sib xyaw ua ke: txheej sab saud yog alumina ceramic, nruab nrab yog txheej roj hmab, thiab hauv qab yog phaj hlau txhawb nqa. Peb txheej no tau sib txuas ruaj khov los ntawm cov txheej txheem vulcanization, tsim cov txheej txheem tiv thaiv kev hnav khaub ncaws sib koom ua ke.
Qhov kev ua tau zoo tshaj plaws ntawm cov txheej txheem sib xyaw no tau pom tseeb hauv ntau yam: Ua ntej, nws qhov kev tiv thaiv kev hnav zoo heev, nrog rau qhov tawv ntawm alumina corundum ceramic ncav cuag HRA85, thiab kev tiv thaiv kev hnav ntau dua 200 npaug ntawm cov hlau carbon ib txwm muaj. Qhov thib ob, cov khoom muaj kev tiv thaiv kev cuam tshuam zoo. Los ntawm cov mis ceramic tawv thiab kev tsim qauv kheej kheej tshwj xeeb, ua ke nrog cov txheej roj hmab buffer, nws tuaj yeem tiv taus kev cuam tshuam ntawm cov khoom loj. Qhov thib peb, cov txheej txheem muaj kev tiv thaiv cua sov zoo thiab tuaj yeem ua haujlwm ruaj khov hauv qhov kub ntawm 0 ° C txog 250 ° C rau lub sijhawm ntev. Tsis tas li ntawd, cov txheej roj hmab siv cov mis tshwj xeeb nrog kev tiv thaiv acid thiab alkali, tuaj yeem tiv taus corrosion hauv cov kua qaub tsis muaj zog thiab alkali tsis muaj zog. Hais txog cov khoom siv lub cev, lub zog compressive ntawm cov txheej txheem yog ≥850 MPa, kev tawg toughness KΙC ≥4.8 MPa·m1 / 2, lub zog sib txuas ntawm roj hmab thiab ceramic (shear stress) ≥3.0 MPa, thiab roj hmab lub neej laus yog ≥15 xyoo, ua kom ntseeg tau tias cov khoom siv tau ntev.
Cov roj hmab alumina ceramic uas tsis yooj yim hnav tau siv dav hauv kev lag luam, feem ntau suav nrog cov tshuab thauj thee hluav taws, cov hlau cog hoppers, cov qhov av, cov khoom siv ntxuav thee, cov tshuab thauj cement, thiab lwm yam chaw ib puag ncig uas hnav hnyav. Hauv kev siv tiag tiag, cov liners feem ntau muab faib ua ntau hom xws li bonded, welded, thiab roj hmab sib xyaw, suav nrog ntau yam kev qhia tshwj xeeb xws li cov duab plaub fab khov kho, nrog cov qhov puag ncig, thiab cov kav dej trapezoidal. Lawv tuaj yeem txiav thiab khoov raws li cov duab ntawm cov khoom siv, ua tau raws li qhov xav tau kev teeb tsa rau cov khoom siv zoo nkauj. Tus qauv tsim modular ua rau kev teeb tsa yooj yim dua thiab hloov pauv, txo cov sijhawm thiab cov nqi kho khoom siv. Hauv 4.5 lab tuj ntsuab ntse mining thiab ua cov txheej txheem hloov pauv thev naus laus zis ntawm Dundee Mining, lub thoob sib tsoo tau txais cov txheej txheem ceramic siab nrog K95 zoo alumina cov ntsiab lus ≥95% thiab qhov ceev ≥3.8 g / cm³, qhia txog nws qhov kev ntseeg siab hauv cov haujlwm lag luam loj.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-20-2025