Bayanin Castable na Corundum Mullite
Corundum mullite refractory castable wani nau'in kayan hana ruwa mai ƙarfi ne wanda ba shi da siffar da ake sayarwa a Kamfanin RS, wanda za a iya amfani da shi a cikin murhun siminti. Corundum mullite castables na iya yin manyan halaye kamar ƙarfin murƙushewa, kwanciyar hankali mai zafi, juriyar girgizar zafi, lalacewa da juriyar yashewar sinadarai a cikin rufin babban tukunyar wutar lantarki da sauran kayan aikin zafin jiki mai zafi. Ana iya amfani da corundum mullite castable mai hana ruwa a cikin tanderun ƙarfe, murhun siminti, murhun gilashi, murhun ƙarfe, murhun ramin yumbu da sauransu.
Abubuwan da Corundum Mullite Castable ke da su
- Babban ƙarfi,
- Ƙarfin juriyar lalacewa,
- Kyakkyawan juriya ga zaizayar ƙasa,
- Kyakkyawan kwanciyar hankali na girgizar zafi,
- Juriyar zafin jiki mai yawa.
Tsarin Kera Corundum Mullite Castable
Babban kayan da ake amfani da su wajen yin corundum mullite castable sune aluminum oxide aggregate mai sauƙi, sinadarin mullite na halitta mai inganci, da kuma simintin calcium aluminate a matsayin abin da ke haɗa sinadaran. Ana yin corundum mullite mai jure zafi ta hanyar ƙona zafi mai yawa ta hanyar amfani da tanderun masana'antu mai ci gaba. Ƙarfin lanƙwasa na corundum mullite da ƙarfin matsewa suna ƙaruwa da farko sannan su ragu sannan su ragu da ƙaruwar zafin maganin zafi. Kuma idan ƙarfin alumina ya kai kashi 5%, ƙarfin lanƙwasa yana kaiwa sama.
Abun da ke ciki na Corundum Mullite Castable
Abubuwan da ke cikin Al2O3 sun fi kashi 90%, kuma rufin corundum mullite da za a iya amfani da shi tare da corundum a matsayin babban matakin lu'ulu'u an haɗa shi da masu warwatse masu dacewa, coagulants, zaruruwan bakin ƙarfe, waɗanda aka haɗa bisa ga tsari mai tsauri. Corundum mullite castable mai jurewa yana da halaye da yawa, kamar ƙarfin zafin jiki mai yawa, juriya ga lalacewa da hana ƙura, watsa zafi mai yawa, juriya ga girgiza, juriya ga tsatsa, kyakkyawan rufewa da kuma danshi da wuri.
Bayanin Rongsheng Refractory Corundum Mullite Castable
| Abu | NM-1 | NM-2 | NM-3 |
| Al2O3% ≥ | 75 | 80 | 85 |
| CaO % ≤ | 2 | 2 | 2 |
| Yawan yawa g/cm3 > | 2.75 | 2.8 | 2.9 |
| Ƙarfin murkushewa Mpa (1400℃, 3h) | >95 | >105 | >110 |
| Modulus na fashewa Mpa (1400℃, 3h) | >13.5 | >15.0 | >16.0 |
| Asarar gogewa a zafin jiki na ɗaki cm3 | <8.5 | <7.3 | <6 |
| 0.2MPa, juriya a ƙarƙashin nauyin farko ℃ | >1490 | >1530 | >1560 |
| Juriyar girgizar zafi (900℃, sanyaya ruwa)/sau | >20 | >20 | >20 |
| Matsakaicin zafin aiki ℃ | 1550 | 1600 | 1600 |
| Saurin canjin layi na sake dumamawa % | <-0.3 | <-0.2 | <-0.2 |
Amfani da Corundum Mullite Castable
Corundum mullite refractory castable yana da fasaloli na faɗaɗawa iri ɗaya, kyakkyawan juriya ga girgizar zafi, kwanciyar hankali mai girma a zafin jiki, ƙarfin zafin jiki mai yawa, juriya mai yawa a ƙarƙashin kaya, ƙarancin saurin rarrafe mai zafi, ƙarfin murƙushewa mai yawa, ƙarancin canjin girma mai layi, tauri mai yawa, juriya mai kyau ga lalata sinadarai, juriyar fashewa da lalacewa. Saboda irin waɗannan halaye, kuma rufin corundum mullite castable yana da ɗorewa a amfani kuma ana amfani da shi sosai a cikin murhun masana'antu daban-daban, tanderu mai zafi da sauran mahimman sassan zafin jiki, kamar:
- Boiler, tanderu mai fashewa, murhun zafi mai fashewa, tanderu mai dumama,
- Murhun ramin yumbu, murhun siminti, mai ƙona kwal,
- Ƙofar murhu, buɗewar abinci, murhun ƙarfe, murhun ƙarfe,
- Ɗakin ƙona wuta, bututun hayaki mai karkata,
- Babban tukunyar wutar lantarki, murhun gilashi.