ʻO ke kūpaʻa leo maikaʻi a me ke kūpaʻa haʻalulu wela, ka hoʻomaʻemaʻe kiʻekiʻe a me ka refractoriness tabular alumina

tabular alumina ta
nā mea alumina papa
alumina papa

Wehewehe pōkole

ʻO Tabular Alumina kahi mea maʻemaʻe i hoʻopaʻa ʻia i nā wela kiʻekiʻe me ka ʻole o nā mea hoʻohui MgO a me B2O3, ʻO kāna microstructure he ʻano polycrystalline ʻelua-dimensional me nā kristal α-Al2O3 nui i ulu maikaʻi.ʻO Tabular Alumina ka nui o nā pores liʻiliʻi i pani ʻia i loko o ka kristal individval, ʻoi aku ka nui o ka Al2O3 ma mua o 99 % . No laila, loaʻa iā ia ka paʻa leo maikaʻi a me ke kūpaʻa haʻalulu wela, ka maʻemaʻe kiʻekiʻe a me ka refractoriness, ka ikaika mechanical maikaʻi loa, ke kūʻē abrasion i ka slag a me nā mea ʻē aʻe.

E HOAKAKA ANO

Hoʻohui Kimia

'ikamu		hōʻuluʻulu		uku hoʻopaʻi
		Papa kuhikuhi	Maʻamau	Papa kuhikuhi	Maʻamau
haku mele ʻana	Al2O3（%）	≥99.20	99.5	≥99.00	99.5
	SiO2（%）	≤0.10	0.06	≤0.18	0.08
	Fe2O3（%）	≤0.10	0.07	≤0.15	0.09
	Na2O（%）	≤0.40	0.28	≤0.40	0.30

Na Waiwai Kino

'ikamu		Papa kuhikuhi	Maʻamau
Na Waiwai Kino	ʻAiʻi Nui/cm3	≥3.50	3.58
	Ka hoʻopaʻa ʻana i ka wai	≤1.0%	0.75
	Ka nui o ka porosity	≤4.0%	2.6

Hoʻohālikelike waiwai

'ikamu		ʻO ka Alumina Tabular	ʻO ka alumina huila keʻokeʻo
Hoʻohālikelike waiwai o Tabular Alumina a me White Fused Alumina	ʻO ka hui kemika o ka homogeneity	kaulike	He kiʻekiʻe ka maikaʻi ma Na2O
	Ka nui pore maʻamau/μm	0.75	44
	Ka nui o ka porosity/%	3-4	5-6
	ʻAiʻi Nui/cm3	3.5-3.6	3.4-3.6
	Ka hana kolo/%	0.88	0.04, ho'āʻo kiʻekiʻe
	Ka hana hoʻopaʻa ʻana	Kiʻekiʻe	haahaa
	ʻO ka ikaika, ke kū'ē i ka haʻalulu wela	Kiʻekiʻe	haahaa
	Ka helu o ka lole /cm3	4.4	8.7

Tabular a me nā hui ʻē aʻe

ʻO Aggregates ka iwi kuamoʻo o ka hana refractory a hāʻawi i ke kūpaʻa dimensional i nā huahana refractory.Hoʻohui nā haʻihaʻi koʻikoʻi i ka haʻalulu wela a me ka pale ʻana i ka corrosion a ʻo nā uku aggregate e hoʻonui i ka hāʻawi ʻana i ka nui o nā ʻāpana a hoʻonui i ka refractoriness o ka huahana.

ʻO ka maikaʻi kūlike o Tabular alumina ka hopena o kahi kaʻina hana sinter i hoʻomalu maikaʻi ʻia me nā mahana puhi ahi ma luna o 1800 ° C. ʻO ka hoʻohana ʻana i nā umu wela kiʻekiʻe me ka ʻenehana kiʻekiʻe loa e ʻae i ka densification o nā mea maka i koho ʻia me ka ʻole o nā mea kōkua sintering. hopena maikaʻi ʻole i nā waiwai wela kiʻekiʻe o nā refractory.

Ma muli o ke kaʻina hana sinter, hōʻike nā aggregates i ka ʻano mineralogical a me ke kinikini like no nā hakina āpau.Kūlike ʻole i nā huahana fused kahi e hōʻiliʻili ai nā haumia i loko o nā uku, ʻo ka hoʻohana ʻana i nā aggregates sintered i loko o ka refractory formulation e hōʻoiaʻiʻo i ka hana kūpaʻa a hilinaʻi.

Hāʻawi ʻo Junsheng i nā ʻano nui like ʻole o nā hōʻuluʻulu mai nā hakina koʻikoʻi loa a hiki i ka nui o ka lepo maikaʻi o <45 μm a me <20 μm.ʻO ka ʻohi ʻana a me ka wili ʻana e ukali ʻia e nā ʻanuʻu hoʻoneʻe hao e hopena i ka hao manuahi haʻahaʻa loa i loko o nā hakina like ʻole.

Ka Hana Hana o Tabular alumina

Hoʻohana ʻia ʻo Tabular Alumina

ʻO Tabular Alumina ka mea i koho ʻia i nā refractory hana kiʻekiʻe i hoʻohana ʻia i loko o nā ʻoihana like ʻole me ke kila , foundry , sima , aniani , prtrochemical , ceramic , a me ka ʻōpala ʻōpala.ʻO nā mea hoʻohana maʻamau ʻole refractory ʻē aʻe e pili ana i kona hoʻohana ʻana i nā lako kiln a no ka kānana metala.