Calcined Alumina Ultrafine For High-Performance Refractories, angagwiritsidwe ntchito mu castables ndi silika fume ndi reactive alumina ufa, kuchepetsa madzi kuwonjezera, porosity ndi kuonjezera mphamvu, voliyumu bata.

Alumina yokhazikika
Alumina wopangidwa
aluminiyamu ceramics

Kufotokozera Kwachidule

Calcined Alumina Ultrafine Kwa High-Performance Refractories

Calcined aluminiyamu ufa amapangidwa mwachindunji calcination wa mafakitale aluminiyamu kapena zotayidwa hydroxide pa kutentha yoyenera kusintha khola crystallineα-alumina, ndiye akupera mu yaying'ono ufa. Ma calcined micro- powders amatha kugwiritsidwa ntchito pachipata cha slide, nozzles, ndi njerwa za alumina. Komanso, angagwiritsidwe ntchito castables ndi silika fume ndi zotakasuka alumina ufa, kuchepetsa madzi kuwonjezera, porosity ndi kuonjezera mphamvu, voliyumu bata.

ONANI TSOPANO

Thupi ndi mankhwala katundu

Ceramic giredi- Calcined Alumina

Properties Brands	Kapangidwe ka mankhwala (chigawo chambiri)/%					kachulukidwe kothandiza /(g/cm³）Osachepera	Al-A₂O₃/% Osachepera
	Al₂O₃zomwe zili ndi zosachepera	Zonyansa, zosaposa
	Al₂O₃zomwe zili ndi zosachepera	SiO₂	Fe₂O₃	Na₂O	Kutayika kwa Moto
JS-05LS	99.7	0.04	0.02	0.05	0.10	3.97	96
JS-10LS	99.6	0.04	0.02	0.10	0.10	3.96	95
JS-20	99.5	0.06	0.03	0.20	0.20	3.95	93
JS-30	99.4	0.06	0.03	0.30	0.20	3.93	90
JS-40	99.2	0.08	0.04	0.40	0.20	3.90	85

Zogulitsa za alumina zokhala ndi calcined alumina ufa monga zopangira zili ndi mphamvu zamakina, kuuma kwakukulu, kukhazikika kwamagetsi kwapamwamba komanso kusinthasintha kwamafuta. The calcined alumina micropowder angagwiritsidwe ntchito chimagwiritsidwa ntchito zida zamagetsi, ziwiya zadothi structural, refractories, abrasives, kupukuta zipangizo, etc.

Ma alumina owerengeka ndi ma alpha-alumina omwe amakhala makamaka ndi ma sintered agglomerates a makhiristo a aluminiyamu. Kukula kwa makhiristo oyambilira kumadalira kuchuluka kwa calcination ndi kukula kwa agglomerate pamasitepe opera. Ambiri mwa aluminiyamu calcined amaperekedwa pansi (<63μm) kapena fine-ground (<45μm). The agglomerates si mokwanira wosweka pa akupera, amene ndi kusiyana kwambiri ndi zotayikira zotayidwa zotayidwa pansi ndi mtanda akupera ndondomeko. Ma aluminiyamu owerengeka amasiyanitsidwa ndi zomwe zili ndi koloko, kukula kwa tinthu ndi digiri ya calcination. Ma aluminiyamu opangidwa ndi pansi komanso owala bwino amagwiritsidwa ntchito ngati chodzaza matrix kuti apititse patsogolo magwiridwe antchito amapangidwe makamaka potengera zinthu zachilengedwe.

Ma aluminiyamu owerengeka amakhala ndi kukula kwa tinthu kofanana ndi magulu amchere apansi ndipo amatha kusintha mosavuta ma aggregates ndi chiyero chochepa. Powonjezera zonse za alumina zosakaniza ndi kuwongolera tinthu tawo tating'onoting'ono powonjezera aluminiyamu yabwino, kukana kwa aluminiyamu ndi makina, monga kutentha kwapang'onopang'ono ndi kukana kwa abrasion, kumakhala bwino. Kufunika kwa madzi kwa ma alumina opangidwa ndi calcined kumatanthauzidwa ndi kuchuluka kwa ma agglomerates otsalira ndi malo ozungulira. Chifukwa chake, ma calcined alumina okhala ndi malo otsika amawakonda ngati zodzaza njerwa ndi zoponya. Ma aluminiyamu apadera opangidwa ndi calcined okhala ndi malo apamwamba kwambiri, amatha kusintha dongo bwino ngati pulasitiki yophatikizira mfuti ndi ramming. Zopangira zosinthika zomwe zimasinthidwa ndi zinthuzi zimasunga mawonekedwe awo abwino koma zimawonetsa kuchepa kwambiri pambuyo poyanika ndi kuwombera.

Calcined Alumina

Ma aluminiyamu owerengeka a Refractories

Chifukwa cha kutentha kwapamwamba kwambiri kwa a-Alumina, ma Calcined Aluminas amagwiritsidwa ntchito pazinthu zambiri zokanira, zonse muzinthu za monolithic komanso zowoneka bwino.

Magwiridwe Azinthu
Kutengera kuchuluka kwa mphero ndi kukula kwa kristalo, Ma aluminiyamu a Calcined amagwira ntchito zosiyanasiyana pamapangidwe osinthika.

Zofunika kwambiri ndi izi:
• Sinthani magwiridwe antchito powonjezera zonse za Alumina zomwe zili m'mapangidwewa pogwiritsa ntchito zida zachilengedwe kuti zithandizire kuti zisawonongeke komanso zimapangidwira.
• Kupititsa patsogolo tinthu kulongedza katundu ndi kuonjezera kuchuluka kwa particles zabwino chifukwa bwino mawotchi mphamvu ndi abrasion kukana.
• Pangani matrix olimba kwambiri komanso osamva kugwedezeka kwamafuta pochita zinthu zomangira monga Calcium Aluminate Cement ndi/kapena dongo.