Calcined Alumina Ultrafine For High-Performance Refractories, nwere ike iji na castables na silica fume na reactive alumina powders, iji belata mmiri mgbakwunye, porosity na dịkwuo ike, olu kwụsie ike.

Ceramic ọkwa- Calcined Alumina

Ngwaahịa alumina nwere ntụ ntụ ntụ alumina dị ka akụrụngwa nwere ike igwe dị mma, ike siri ike, ihe mgbochi eletrik dị elu na nrụpụta ọkụ dị mma. The calcined alumina micropowder nwere ike n'ọtụtụ ebe na ngwá electronic, structural ceramics, refractories, abrasives, polishing ihe, et al.

Calcined aluminas bụ alfa-aluminas nke mejupụtara isi nke agglomerates sintered nke kristal alumina n'otu n'otu. Ogo kristal ndị a bụ isi na-adabere n'ogo nke calcination na ogo agglomerate na usoro ndị na-esote. Ọtụtụ n'ime alumina calcined na-enye ala (<63μm) ma ọ bụ ezigbo ala (<45μm). A naghị agbaji agglomerates n'ụzọ zuru ezu n'oge a na-egweri, nke bụ ọdịiche dị ịrịba ama site na alumina na-arụ ọrụ nke na-ejupụta n'ụzọ zuru ezu site na nhazi nhazi. A na-ekewa alumina nke Calcined site na ọdịnaya soda, nha urughuru na ogo nke calcination. A na-eji ala na ezigbo ala calcined alumina dị ka ihe na-ejuputa matriks iji kwalite arụmọrụ ngwaahịa nke usoro nke dabere na akụrụngwa sitere n'okike.

Calcined aluminas nwere urughuru size yiri ala ịnweta aggregates na ike mere mfe dochie aggregates na ala ịdị ọcha. Site n'ịba ụba ọdịnaya alumina n'ozuzu nke ngwakọta na imeziwanye ngwongwo ha site na mgbakwunye nke ọma alumina, a na-emeziwanye refractoriness na akụrụngwa akụrụngwa, dị ka modul na-ekpo ọkụ nke mgbawa na nguzogide abrasion. A na-akọwa mkpa mmiri nke alumina calcined site na ọnụọgụ agglomerates fọdụrụnụ na mpaghara elu. Ya mere, a na-ahọrọ alumina calcined na mpaghara ala dị ala dị ka ihe ndochi na brik na ihe nkedo. Pụrụ iche calcined alumina nwere elu elu ebe, nwere ike ịga nke ọma dochie ụrọ dị ka plasticizer na gunning na ramming mixes. Ngwaahịa refractory gbanwetụrụ site na ngwaahịa ndị a na-edobe njirimara nrụnye ha dị mma mana ha na-egosi mbelata nke ukwuu mgbe ihicha na agbapụ.