Phosphating siab-alumina cib cuam tshuam nrog rau qhov ua tiav siab-alumina cib hauv cov tshuaj phosphoric acid rau ntau tshaj ob teev nyob rau hauv ib lub thawv, ua raws li kev kho kub qis, uas ua rau muaj kev txhim kho tseem ceeb hauv lawv lub cev. Qhov no enables lawv siv nyob rau hauv demanding industrial furnaces.
Tom qab phosphating, zoo tib yam siab -alumina cib, raws li qhov tshwm sim hauv qhov kev sim tiag tiag, qhia qhov ntsuas kub ntawm qhov muag ntawm ntau tshaj 30 degree, qhov txo qis hauv qhov porosity li ntawm 10%, qhov nce ntawm qhov ntom ntom ntawm 0.2 g / cm³, thiab 1% txo qis hauv flexural zog ntawm phosphates. Nws pom tseeb tias cov ntsuas tau txhim kho.
Phosphated siab-alumina cib tuaj yeem txhim kho lawv lub cev lub zog thaum tseem txhim kho lawv qhov chaw micro-roughness thiab cov qauv sab hauv, ua kom cov khoom nruab nrab tiv taus acidic thiab qee qhov alkaline cua yaig.
Tom qab tau tsau rau hauv phosphoric acid tov rau lub sijhawm tsim nyog thiab kho ntawm qhov kub thiab txias, cov tshuaj phosphoric acid nkag mus rau hauv cov av cib, sau qee qhov ntawm cov huab cua thiab tsim ib qho micro-crack buffering qauv, uas tuaj yeem tiv taus qhov kub thiab txias tam sim ntawd hloov thiab txo cov tev thiab tawg ntawm cov khoom nyob rau hauv thermal stress.
Kev kho phosphating ntawm qhov siab zoo tib yam -alumina cib yog qhov nyuaj rau kev khiav lag luam vim tias cov khoom pib muaj qee qhov nplaum. Yog tsis muaj kev ntim khoom, cov tshuaj phosphoric acid nyob txhua qhov chaw, thiab kev tuav tsis raug tuaj yeem cuam tshuam rau cov txheej txheem tsim khoom thiab ua rau cov khoom sib kis nrog cov tshuaj.
Peb lub tuam txhab tsim phosphate siab-alumina cib siv cov thawv tshwj xeeb uas tuaj yeem tuav tau ib lub siab- alumina cib ib zaug. Tag nrho lub siab - alumina cib tau muab tso rau hauv lub thawv kom tso cai rau nws los so hauv cov tshuaj phosphoric acid. Qhov chaw micro- tawg tuaj yeem kho tau qee qhov, thiab cov qauv sab hauv yuav ntom dua. Tom qab ntawd, nws yuav tsum tau sawv ntsug rau 24-48 teev ua ntej yuav raug rau qhov kub thiab txias, ua kom nws hnav tsis kam, impermeability, thiab corrosion kuj.
Peb muaj cov cuab yeej siv phosphating, qhov twg txhua qhov siab -alumina cib tau txais kev kho phosphating thiab tom qab ntawd raug cua sov los ntawm cov khoom siv, thiab txhua lub cib yog ci ntawm qhov kub thiab txias. Cov cuab yeej siv phosphating tau yooj yim siv tab sis muaj kev ua haujlwm ruaj khov thiab siv tau zoo dua.