- 14
- Dec
Sunan mahaifi Mullite
Sunan mahaifi Mullite
Mullite wani fili ne na binary wanda ke wanzuwa tabbatattu a ƙarƙashin matsi na al’ada a cikin tsarin binary na Al2O3-SiO2. Tsarin sinadarai shine 3Al2O3-2SiO2, kuma tsarin ka’idar shine: Al2O3 71.8%, SiO2 28.2%. Idan aka kwatanta da mullite na halitta *, mullit ɗin da aka saba amfani da shi ana haɗa shi ta hanyar wucin gadi, gami da mullite mai laushi da kuma fused mullite.
Roba mullite wani babban inganci danye mai refractory. Yana da halaye na faɗaɗa ɗaiɗaikun ɗaiɗaikun ɗabi’a, kyakkyawan kwanciyar hankali na zafin zafi, babban wurin laushi mai nauyi, ƙaramin ƙimar zafi mai zafi, babban taurin, da juriya mai kyau na lalata sinadarai.
Tsarin samarwa da hanyar mullite mai laushi:
Sintered mullite an yi shi da babban ingancin bauxite na halitta azaman albarkatun ƙasa, kuma an sanya shi a cikin kiln mai zafin jiki mai zafin jiki sama da 1750 ℃ ta hanyar zaɓin tsari da homogenization mai girma-mataki.
Halayen ayyuka da aikace-aikace na sintered mullite:
Sintered mullite yana da halaye na babban abun ciki, babban girma mai yawa, kyakkyawan kwanciyar hankali na thermal, ƙananan ƙimar zafin jiki mai zafi da kyakkyawan juriya na lalata sinadarai, kuma ingancinsa ya tabbata. A lokaci guda, sintered mullite shine samar da siffofi daban-daban da rashin tabbas. Ingantattun albarkatun ƙasa don kayan da aka cire, wuraren tsafta, madaidaicin simintin gyaran kafa da sauran samfuran.
Ma’anar sinadarai na zahiri da sinadarai na sintered mullite:
Grade | Al2O3% | SiO2% | Kashi 2% | R2O% | Yawan yawa (g/cm3) | Sha ruwa(%) |
M70 | 68-72 | 22-28 | ≤1.2 | ≤0.3 | ≤2.85 | ≤3 |
M60 | 58-62 | 33-28 | ≤1.1 | ≤0.3 | ≥2.75 | ≤3 |
M45 | 42-45 | 53-55 | ≤0.4 | ≤1.6 | ≥2.50 | ≤2 |