Alumina refractory bukukuwa da lafiya ingancin high ƙarfi, high taurin, m abrasion ikon, lokacin farin ciki girma yawa, high zafin jiki yi, lalata juriya, m gurbatawa da sauran m Properties. An yi amfani da ƙwallan alumina sosai a cikin kammalawa da zurfin sarrafa nau'ikan yumbu, enamel, gilashi, sinadarai da sauran kayan kauri da ƙarfi.
Alumina refractory bukukuwa an yi su da AL2O3, kaolin, roba tara, mullite crystal da sauran kayan. Dangane da mirgina da hanyar gyare-gyaren latsa. Aluminum refractory bukukuwa suna da abũbuwan amfãni daga babban ƙarfi, mai kyau thermal girgiza juriya, dace maye da tsaftacewa, dogon sabis rayuwa da sauransu.
Domin yin alumina refractory bukukuwa, da electrode aka sanya a kasa na graphite crucible, da kuma baka za a iya fara ta ƙara wani adadin masana'antu alumina foda. Aiki na yanzu 1.0kA, ƙarfin lantarki 80 ~ 100V.Bayan bugawa, kamar yadda Al2O3 narke, loading sannu a hankali, har sai da kayan ruwa da aka cika da graphite crucible, da kayan ruwa zafin jiki ne 2200 ~ 2300 ℃. Bayan haka, da crucible ne zuba fitar da bayani. yana fita waje.
Abu | High alumina | Ƙananan rarrafe | Mulite | Corundum |
Girman (mm) | 40-80 | 40-80 | 40-80 | 40-80 |
AL2O3(%) | 65 | 70 | 75 | 95 |
Refractoriness ƙarƙashin kaya (°C) | 1450 | 1460 | 1530 | 1650 |
Bayyanar Ƙarfi(%) | 25 | 23 | 22 | 18 |
Girman Girma (g/cm3) | 2.3 | 2.4 | 2.5 | 3.1 |
Ƙarfin murkushe sanyi (Mpa) | 13 | 14 | 32 | 36 |
Thermal girgiza juriya (1100Cwater sanyaya) sake zagayowar ≥ | 15 | 10 | 20 | 7 |
Refractoriness (°C) | 1710 | 1750 | 1800 | 1800 |
Alumina refractory bukukuwa an yi amfani da ko'ina a gama da zurfin aiki daban-daban na yumbu, enamel, gilashin, sunadarai da sauran lokacin farin ciki da kuma wuya kayan. Musamman aluminium refractory bukukuwa dace da iska rabuwa kayan aiki zafi tarawa da karfe fashewa makera gas dumama makera a matsayin zafi ajiya filler.