Kuti mumvetse njira yowerengera ya kachulukidwe ka refractory castable, bowo la mpweya ndi chiyani?
1. Pali mitundu itatu ya pores:
1. Mbali imodzi imatsekedwa ndipo mbali inayo imayankhulidwa ndi kunja, yomwe imatchedwa pore yotseguka.
2. Pore yotsekedwa imatsekedwa mu chitsanzo ndipo sichikugwirizana ndi dziko lakunja.
3. Kupyola mabowo kumatchedwa kudzera m'mabowo.
Total porosity, porosity yeniyeni, imatanthawuza kuchuluka kwa voliyumu yonse ya pores mu voliyumu yonse ya chitsanzo;Kawirikawiri, dzenje lodutsa limaphatikizidwa ndi dzenje lotseguka, ndipo dzenje lotsekedwa ndilochepa komanso lovuta kuyeza mwachindunji.Choncho, porosity imasonyezedwa ndi porosity yotseguka, ndiko kuti, porosity yowonekera.Kuwoneka kwa porosity kumatanthawuza kuchuluka kwa voliyumu yonse ya pores yotseguka mu chitsanzo ku chiwerengero chonse cha chitsanzo.
Kuchulukana kwakukulu kumatanthawuza chiŵerengero cha voliyumu yowonongeka ya chitsanzo chouma ku voliyumu yake yonse, ndiko kuti, chiŵerengero cha voliyumu yowonongeka ya thupi la porous ku voliyumu yake yonse, yofotokozedwa mu Kg/m3 kapena g/cm3.Kuwoneka kwa porosity ndi kachulukidwe kakang'ono ndi chimodzi mwazinthu zowongolera kuchuluka kwa refractory castable pomanga.Zolozera ziwirizi zitha kuyesedwa ndi chitsanzo chomwecho.Zotsatirazi ndikuchulukirachulukira komanso kulimba kwazinthu zomwe zimagwiritsidwa ntchito nthawi zambiri refractory castables.
2. Zotsatirazi ndikuchulukirachulukira komanso kulimba kowoneka bwino kwa zida zomwe zimagwiritsidwa ntchito nthawi zambiri.
CA-50 simenti mkulu aluminiyamu castable, 2.3-2.6g/cm3, 17-20
CA-50 simenti dongo castable, 2.2-2.35g/cm3, 18-22
Dongo womangidwa mkulu aluminiyamu castable, 2.25-2.45g/cm3, 16-21
Otsika simenti mkulu zotayidwa castable, 2.4-2.7g/cm3, 10-16
Simenti yotsika kwambiri yopangidwa ndi aluminiyamu, 2.3-2.6g/cm3, 10-16
CA-70 simenti corundum castable, 2.7-3.0g/cm3, 12-16
Madzi galasi dongo castable, 2.10-2.35g/cm3, 15-19
Mkulu wa aluminiyamu phosphate castable, 2.3-2.7g/cm3, 17-20
Aluminiyamu mankwala mkulu zotayidwa castable, 2.3-2.6g/cm3, 16-20
3. Kachulukidwe ka simenti yotsika ya simenti ikufotokozedwa mwachidule pansipa
Kuponyedwa kwa simenti yotsika kumatenga simenti ya aluminiyamu ya calcium kukhala yomangira, ndipo zotayira zomwe zili ndi CaO zosakwana 2.5% nthawi zambiri zimatchedwa zoponyera simenti zochepa.Osiyana castables chikhalidwe, otsika simenti castables zakonzedwa ndi m'malo ambiri kapena onse mkulu aluminiyamu simenti ndi superfine ufa (tinthu kukula zosakwana 10 microns) ndi agglomeration chomangira ndi yemweyo kapena ofanana mankhwala zikuchokera waukulu, optimizing tinthu kukula. kugawa, ufa yaying'ono, mawonekedwe a tinthu ndi zinthu zina, ndikuwonjezera kachulukidwe kakang'ono ka dispersant (water reducer), kuchuluka kwa retarder ndi zina zowonjezera.
Kachulukidwe wa dongo otsika simenti refractory castable ndi 2.26g/cm ³ pafupifupi.
Kachulukidwe wa aluminiyamu otsika simenti refractory castable ndi 2.3 ~ 2.6g/cm ³ pafupifupi.
Corundum otsika simenti refractory castable ndi kachulukidwe wa 2.65 ~ 2.9g/cm ³ pafupifupi.
Nthawi yotumiza: Oct-24-2022