Vim li cas Tabular Alumina Zoo tagnrho rau Refractory Linings?
Aug 04, 2026
Tso lus
Taw qhia
Tabular aluminayog lub siab -purity alumina aggregate sintered saum 1900℃. Nws cov phaj- zoo li cov muaju ntxiab suav suav tsis txheeb kaw qhov pores, muab nws nqus dej tsawg heev thiab yuav luag xoom re-shrinkage ntawm cua sov. Cov qauv no ua rau nws cov khoom siv pob txha txhim khu kev qha hauv castables rau steel ladles thiab cement kilns.
Kev sib raug zoo ntawm cov txheej txheem sintering thiab thermal shock kuj
Thaum lub sij hawm sintering sai nyob rau hauv ib tug ncej kiln, cov alumina nplej loj hlob mus rau hauv interlocking daim hlau uas tawm me me kaw pores nyob rau hauv es tsis qhib raws. Vim tias cov pores no tsis txuas rau saum npoo, molten slag thiab gases tsis tuaj yeem nkag tau yooj yim. Thaum cov txheej txheej kub nce los yog poob los ntawm ntau pua degrees hauv feeb, lub qhov ntsaws ruaj ruaj ua raws li kev ntxhov siab buffers, txo qhov tsim ntawm cov kab nrib pleb. Kev soj ntsuam hauv teb qhia tias tabular alumina-raws li castables muaj sia nyob tsis tu ncua thermal voj voog nrog pom tsis tshua muaj qhov sib txawv dua li cov khoom siv bauxite-raws li.
Cov kev siv tseem ceeb thiab kev ua neej nyob
Nyob rau hauv steel zeb ladles, tabular alumina castables feem ntau muab tso rau hauv qhov cuam tshuam pad, slag cheeb tsam thiab zoo thaiv qhov chaw uas ob qho tib si yaig thiab thermal shock hnyav. Cov nroj tsuag cement siv lawv nyob rau hauv qhov hluav taws xob tawm thiab cov kav dej rau cov laj thawj zoo sib xws. Vim tias cov khoom muaj ntau dua 99% Al₂O₃, nws qhia ob peb impurities uas tuaj yeem tsim qis- theem melting. Cov neeg siv feem ntau tshaj tawm tias kev saib xyuas ncua ntev li 30% mus rau 50% piv nrog cov txheej txheem siab - alumina hauv ob sab phlu, thiab qee qhov kev teeb tsa ua haujlwm rau ntau tshaj 1,000 qhov cua sov ua ntej yuav tsum muaj kev cuam tshuam loj.
Tabular alumina lub ntug los ntawm kev hloov pauv ultrapure alumina rau hauv cov pob txha ntom ntom, thermally ruaj khov los ntawm kev tswj xyuas ceev ceev. Tsis yog kev thawb rau qhov siab siab - qhov ntsuas kub ib leeg, nws daws qhov tiag - teeb meem hauv ntiaj teb ntawm kev sib tsoo - tsav tsheb kaw, pab cov nroj tsuag txiav ob qho tib si refractory noj thiab tsis xav txog lub sijhawm poob.
Yog koj xav paub ntxiv txogtabular alumina, thov nias nws.