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.
- Alumina na-emeghachi omume
- Ngwakọta Alumina
- alumina seramiiki
Nkọwa dị mkpirikpi
Njirimara anụ ahụ na kemịkalụ
Ceramic ọkwa- Calcined Alumina
| Ụdị Njirimara | Ngwakọta kemịkalụ (irighiri oke)/% | njupụta dị irè / (g/cm3) Ọ dịghị ihe na-erughị | α- Al2O3/% Ọ dịghị ihe na-erughị | ||||
| Al2O3ọdịnaya abụghị obere karịa | Ọdịnaya adịghị ọcha, ọ bụghị karịa | ||||||
| SiO2 | Fe2O3 | Na2O | Ọnwụ ọkụ | ||||
| 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 |
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 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.
Calcined aluminum
A na-eme ntụ ntụ alumina nke calcined site na nchikota alumina ụlọ ọrụ ma ọ bụ aluminom hydroxide na okpomọkụ kwesịrị ekwesị iji gbanwee ghọọ crystallinea-alumina kwụsiri ike, wee na-egweri n'ime obere ntụ ntụ.Enwere ike iji obere ntụ ntụ Calcined mee ihe na ọnụ ụzọ slide, nozzles na brik alumina.Tụkwasị na nke ahụ, a pụrụ iji ha mee ihe na castables na silica fume na reactive alumina powders, iji belata mgbakwunye mmiri, porosity na ịbawanye ike, nkwụsi ike olu.
Calcined Alumina maka Refractories
N'ihi njirimara okpomọkụ dị elu nke a-Alumina, Calcined Aluminas na-eji ọtụtụ ngwa refractory, ma na monolithic na ngwaahịa ekara.
Arụmọrụ ngwaahịa
Dabere n'ókè nke igwe igwe na kristal, Calcined Aluminas na-arụ ọrụ dị iche iche dị iche iche na nhazi usoro.
Nke kachasị mkpa bụ:
• Nweta nkwalite ngwaahịa arụmọrụ site n'ịbawanye mkpokọta Alumina ọdịnaya nke ndị a formulations iji eke akụrụngwa iji melite refractoriness na n'ibu Njirimara.
• melite urughuru mbukota site na ịba ụba nke ezi ahụ na-akpata ka mma n'ibu ike na abrasion iguzogide.
• Mepụta matriks nke elu refractoriness na ezigbo thermal ujo nguzogide site na-emeghachi omume na ihe nkedo dị ka Calcium Aluminate ciment na / ma ọ bụ ụrọ.
