Hauv kev lag luam fais fab thermal, cov khoom siv feem ntau raug puas tsuaj vim muaj qhov kub thiab txias thiab cov xwm txheej hnav ntau, uas cuam tshuam rau kev nyab xeeb ntawm tag nrho lub cev. Txhawm rau daws qhov teeb meem no, nws yog qhov tsim nyog los nrhiav cov ntaub ntawv uas tuaj yeem tiv taus qhov kub thiab txias thiab tiv taus kev hnav. Cov ntaub ntawv alumina ceramic yog qhov tsim nyog heev.
Alumina ceramic yog ib hom alumina (Al2O3) ua cov khoom siv raw ntawm cov khoom siv ceramic, tom qab nias qhuav, thiab tom qab ntawd los ntawm ntau dua 1,700 degrees ntawm qhov kub siab sintering. Alumina ceramics muaj cov yam ntxwv ntawm kev ua tau zoo, lub zog kho tshuab, kev tiv taus kub siab thiab kev tiv taus corrosion. Ntsuas los ntawm Shanghai Institute of Silicate ntawm Suav Academy of Sciences, nws Rockwell hardness yog HRA80-90, qhov nyuaj yog thib ob tsuas yog pob zeb diamond, ntau dua li qhov hnav tsis kam ntawm cov hlau hnav tsis kam thiab stainless hlau. Qhov hnav tsis kam yog 266 npaug ntawm manganese hlau thiab 171.5 npaug ntawm cov hlau cam khwb cia chromium siab. Raws li peb cov neeg siv khoom taug qab kev soj ntsuam ntau tshaj kaum xyoo, nyob rau hauv tib qho kev ua haujlwm, lub neej ua haujlwm ntawm cov khoom siv tuaj yeem ntev tsawg kawg kaum npaug.
Alumina ceramics siv tau rau hauv cov khoom siv kub thiab hnav hnyav hauv kev lag luam fais fab thermal, xws li kiv cua, twj tso kua mis rotors, plhaub, yeeb nkab, rooj zaum, sealing rings, thiab lwm yam. Cov khoom no yuav tsum tiv taus qhov kub thiab txias, siab siab thiab corrosive media, yog li lawv yuav tsum siv cov ntaub ntawv zoo hnav tsis kam los tsim.
Hauv kev lag luam fais fab thermal, lub tshuab zeb thee yog cov khoom siv tseem ceeb, thiab daim ntawv thov ntawmcov khoom siv ceramic uas tsis yooj yim hnavtuaj yeem txhim kho lub neej ua haujlwm ntawm lub tshuab zeb thee, thiab tom qab ntawd xyuas kom meej tias tag nrho lub tshuab boiler ua haujlwm. Qhov no tsis tsuas yog txo qhov tsis ua haujlwm ntawm cov khoom siv, xyuas kom meej tias lub tshuab boiler ua haujlwm ruaj khov, tab sis kuj txo cov nqi kho khoom siv, uas yog nyob rau hauv kab nrog kev nrhiav kev pab nyiaj txiag hauv kev lag luam fais fab thermal.
Yuav tsum nco ntsoov tias hauv kev siv ua haujlwm, cov lus qhia tshwj xeeb, cov ntsiab lus, kev ua thiab kev siv cov khoom siv ceramic uas tiv taus hnav yuav tsum tau xaiv raws li cov xwm txheej ua haujlwm tiag tiag kom ntseeg tau tias muaj kev ua tau zoo tshaj plaws thiab cov txiaj ntsig zoo tshaj plaws.
Lub sijhawm tshaj tawm: Plaub Hlis-24-2024