Alumina yumbu wani nau'i ne na alumina (Al2O3) a matsayin babban kayan yumbu, wanda aka yi amfani da shi a cikin fim mai kauri wanda aka haɗa.Abubuwan yumbu na alumina suna da kyakkyawan aiki, ƙarfin injina da juriya mai zafi.
Alumina yumbura a halin yanzu an kasu kashi biyu iri: babban tsarki da na kowa.High tsarki alumina yumbu ne fiye da 99.9% Al2O3 abun ciki na yumbu kayan, saboda ta sintering zazzabi har zuwa 1650-1990 ℃, watsa kalaman na 1 ~ 6μm, kullum Ya sanya daga narkakkar gilashin maye gurbin platinum crucible.Saboda haskensa watsawa da juriya ga alkali karfe lalata, shi za a iya amfani da matsayin sodium fitila tube, a cikin Electronics masana'antu kuma za a iya amfani da matsayin hadedde kewaye hukumar da high mita rufi abu.
An kasu kashi na yau da kullun alumina yumbura zuwa 99 ain, 95 porcelain, 90 porcelain, 85 ain da sauran nau'ikan bisa ga abun ciki na Al2O3, wani lokacin abun ciki na Al2O3 a cikin 80% ko 75% kuma ana ɗaukar shi jerin yumbu na alumina na yau da kullun.Daga cikin su, 99 alumina yumbu kayan da ake amfani da su yi high zafin jiki crucible, tanderu tube da kuma musamman lalacewa-resistant kayan, kamar yumbu bearings, yumbu seals da ruwa bawuloli, da dai sauransu 95 alumina yumbu abu ne yafi amfani da lalata resistant, sa resistant kayan aiki. sassa;85 alumina yumbu abu sau da yawa ana haɗe shi da wani ɓangare na talc, inganta kayan lantarki da ƙarfin injin, kuma ana iya rufe shi da molybdenum, niobium, tantalum da sauran karafa, wasu kuma ana amfani da su azaman na'urorin injin lantarki.
Lokacin aikawa: Afrilu-28-2022