Calcined Alumina Ultrafine Rau High-Performance Refractories, tuaj yeem siv rau hauv castables nrog silica fume thiab reactive alumina hmoov, txo cov dej ntxiv, porosity thiab kom muaj zog, ntim stability.

Reactive Alumina
Fused Alumina
alumina ceramics

Qhia luv luv

Calcined Alumina Ultrafine Rau Kev Ua Haujlwm Siab Zoo Refractories

Calcined alumina hmoov yog tsim los ntawm ncaj qha calcination ntawm kev lag luam alumina los yog txhuas hydroxide ntawm qhov kub thiab txias kom hloov mus rau hauv crystallineα-alumina ruaj khov, ces sib tsoo rau hauv micro-hmoov. Calcined micro- hmoov tuaj yeem siv rau hauv lub rooj vag swb, nozzles, thiab alumina cib. Tsis tas li ntawd, lawv tuaj yeem siv rau hauv castables nrog silica fume thiab reactive alumina hmoov, txo cov dej ntxiv, porosity thiab kom muaj zog, ntim stability.

Hu rau tam sim no

Lub cev thiab tshuaj muaj zog

Qib Ceramic- Calcined Alumina

Cov khoom lag luam	Chemical muaj pes tsawg leeg (mas feem) /%					zoo ceev / (g / cm³) Tsis tsawg dua	al- aw₂O₃/% Tsis tsawg dua
	Al₂O₃cov ntsiab lus tsis tsawg dua	Cov ntsiab lus impurity, tsis ntau dua
	Al₂O₃cov ntsiab lus tsis tsawg dua	SiO₂	Fe₂O₃	Na₂O	Ignition Loss
JS-05 UAS	99.7 ua	0.04 ib	0.02 ib	0.05 Nws	0.10	3.97 ib	96
JS-10 UAS	99.6 ib	0.04 ib	0.02 ib	0.10	0.10	3.96 ib	95
JS-20	99.5 ua	0.06 ib	0.03 ib	0.20 ib	0.20 ib	3.95 ib	93
JS-30	99.4 ua	0.06 ib	0.03 ib	0.30 Nws	0.20 ib	3.93 ib	90
JS-40	99.2 ib	0.08 ib	0.04 ib	0.40 ib	0.20 ib	3.90 ib	85

Alumina khoom nrog xws li calcined alumina hmoov raws li raw khoom muaj zoo heev mechanical zog, siab hardness, siab zog resistivity thiab zoo thermal conductivity. Cov calcined alumina micropowder tuaj yeem siv dav hauv cov khoom siv hluav taws xob, cov qauv ceramics, refractories, abrasives, polishing cov ntaub ntawv, thiab lwm yam.

Calcined aluminas yog alpha-aluminas uas muaj feem ntau ntawm sintered agglomerates ntawm tus kheej alumina crystals. Qhov loj ntawm cov crystals thawj yog nyob ntawm qhov degree ntawm calcination thiab agglomerate loj ntawm cov kauj ruam tom ntej sib tsoo. Feem ntau ntawm calcined aluminas yog muab hauv av (<63μm) lossis nplua av (<45μm). Cov agglomerates tsis tau tawg tag nrho thaum lub sij hawm sib tsoo, uas yog qhov sib txawv tseem ceeb ntawm cov aluminas reactive uas yog tag nrho hauv av los ntawm cov txheej txheem sib tsoo. Calcined aluminas yog cais los ntawm cov ntsiab lus dej qab zib, qhov loj me thiab qib ntawm calcination. Hauv av thiab nplua-hauv av calcined aluminas yog siv los ua cov khoom siv matrix los txhim kho cov khoom ua tau zoo ntawm cov formulations feem ntau raws li cov khoom siv raw.

Calcined aluminas muaj qhov loj me me zoo ib yam li cov pob zeb hauv av thiab tuaj yeem hloov tau yooj yim nrog cov purity qis dua. Los ntawm kev ua kom tag nrho cov ntsiab lus alumina ntawm cov khoom sib xyaw thiab txhim kho lawv cov khoom ntim los ntawm kev sib ntxiv ntawm cov alumina zoo, cov refractoriness thiab txhua yam khoom, xws li kub modulus ntawm rupture thiab abrasion resistance, yog txhim kho. Cov dej thov ntawm calcined aluminas yog txhais los ntawm tus nqi ntawm cov residual agglomerates thiab thaj chaw saum npoo. Yog li ntawd, calcined aluminas nrog thaj chaw qis yog nyiam ua cov khoom siv hauv cib thiab castables. Tshwj xeeb calcined aluminas nrog thaj tsam siab dua, tuaj yeem ua tiav cov av nplaum zoo li cov yas hauv cov phom thiab sib tov sib xyaw. Cov khoom siv refractory hloov kho los ntawm cov khoom no khaws lawv cov yam ntxwv zoo, tab sis qhia tau tias txo qis qis tom qab ziab thiab tua.

Calcined Alumina

Calcined Alumina rau Refractories

Vim tias qhov kub zoo heev ntawm a-Alumina, Calcined Aluminas yog siv rau hauv ntau daim ntawv thov refractory, ob qho tib si hauv cov khoom siv monolithic thiab zoo li tus.

Product Performance
Nyob ntawm seb qhov degree ntawm milling thiab siv lead ua loj npaum li cas, Calcined Aluminas pab ntau yam kev ua haujlwm sib txawv hauv cov txheej txheem refractory.

Qhov tseem ceeb tshaj plaws yog:
• Txhim kho cov khoom ua tau zoo los ntawm kev ua kom tag nrho Alumina cov ntsiab lus ntawm cov formulations siv cov khoom siv ntuj tsim los txhim kho refractoriness thiab mechanical zog.
• Txhim kho particle packing los ntawm kev nce cov nqi ntawm cov khoom zoo uas ua rau cov neeg kho tshuab muaj zog zoo dua thiab ua kom puas.
• Tsim cov matrix ntawm siab refractoriness thiab zoo thermal poob siab los ntawm reacting nrog binder Cheebtsam xws li Calcium Aluminate Cement thiab / los yog av nplaum.