Kiekie-Maemae Magnesium-Aluminum Spinel Papa: Sma-66, Sma-78 A me Sma-90.Sintered Spinel Huahana Huahana

Sintered magnesium alumina spinel
Klinker spinel magnesia
synthesize spinel

Wehewehe pōkole

Junsheng kiʻekiʻe-maʻemaʻe magnesium-aluminum spinel nenoaiu hoʻohana kiʻekiʻe-maʻemaʻe alumina a me kiʻekiʻe-maʻemaʻe magnesium oxide e like me maka, a ua sintered ma kiʻekiʻe wela.Wahi a nā haku mele ʻokoʻa, ua māhele ʻia i ʻekolu mau papa: SMA-66, SMA-78 a me SMA-90.Huahana Huahana.

E HOAKAKA ANO

Nā hiʻohiʻona

• Junsheng kiʻekiʻe-maʻemaʻe magnesium-aluminum spinel i kēia mau hiʻohiʻona:
• Ke kū'ē kū'ē kiʻekiʻe;
• Paʻa leo kiʻekiʻe wela maikaʻi;
• Ke kū'ē maikaʻi loa i kaʻinoʻino a me ke komoʻana i ka alkaline slag;
• Paʻa puʻu wela maikaʻi.

MEA		UNIT	NUI
			SMA-78	SMA-66	SMA-50	SMA90
haku mele ʻana	Al₂O₃	%	74-82	64-69	48-53	88-93
	MgO	%	20-24	30-35	46-50	7-10
	CaO	%	0.45 ka nui	0.50 ka nui	0.65 ka nui	0.40 ka nui
	Fe₂O₃	%	0.25 ka nui	0.3max	0.40 ka nui	0.20 ka nui
	SiO₂	%	0.25 ka nui	0.35 ka nui	0.45 ka nui	0.25 ka nui
	NaO₂	%	0.35 ka nui	0.20 ka nui	0.25 ka nui	0.35 ka nui
ʻAiʻa nui g/cm³			3.3min	3.2min	3.2min	3.3min
Ka nui o ka wai%			1 max	1 max	1 max	1 max
Ka nui o ka porosity %			3 max	3 max	3 max	3 max

'S' ----sintered ;F-----huʻia ;M------magnesia;A----alumina;B----bauxite

He koʻikoʻi ko nā mineral spinel i nā waiwai wela o nā mea refractory.No ka laʻana, ma muli o ka liʻiliʻi thermal expansion coefficient o spinel (α=8.9x10-*/℃ ma 100 ~ 900 ℃), hoʻohana ʻia ʻo spinel ma ke ʻano he mea hoʻopaʻa (A i kapa ʻia ʻo cementing phase, matrix), magnesia-alumina bricks me periclase e like me ka papa kristal nui, i ka wā e hoʻololi nui ai ka mahana, ua liʻiliʻi ke koʻikoʻi o loko, a ʻaʻole maʻalahi ka haki ʻana o nā pōhaku, no laila hiki ke hoʻomaikaʻi ʻia ke kūpaʻa wela o nā pōhaku (magnesia-alumina bricks ʻO ka thermal stability he 50 ~ 150. manawa).

Eia hou, no ka mea, he mau waiwai maikai ko spinel e like me ka paakiki ki'eki'e, ka waiwai pa'a kemika, a me ka helu hehe'e ki'eki'e, a he ku'e loa i ka corrosion e na hehee like 'ole i ke ki'eki'e wela, 'o ka hele 'ana o nā minela spinel i loko o nā huahana i ho'omaika'i i ka hana ki'eki'e wela o ka. huahana.

ʻO ke kumu nui o ke kiʻekiʻe o ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa o nā pōhaku magnesia-alumina (ʻaʻole i emi ka helu hoʻomaka ma mua o 1550-1580 ℃) ma mua o nā pōhaku magnesia (ʻo ka hoʻomaka ʻana ma lalo o 1550 ℃) he ʻokoʻa ke ʻano o ka matrix. .

ʻO ka hōʻuluʻuluʻana, he mau mea maikaʻi loa nā spinels e pili ana i ka helu hoʻoheheʻe, ka hoʻonuiʻana i ka wela, ka paʻakikī, a me nā mea'ē aʻe, me ka paʻa paʻa o nā waiwai kemika, ikaika ikaika i ka alkaline slag erosion, a me ke kū'ēʻana i ka hoʻoheheʻeʻiaʻana o ka metala. .

ʻIke kumu

Junsheng kiʻekiʻe-maʻemaʻe magnesia-aluminum spinel loaʻa haʻahaʻa haʻahaʻa haumia maʻiʻo a me ka maikai kiʻekiʻe-mehana hana.He kūpono ka spinel maʻemaʻe kiʻekiʻe no nā ʻāpana i hana mua ʻia e like me nā pōhaku breathable, nā pōhaku noho, nā ladles, nā uhi o ka umu uila, nā mea refractory no nā kiln rotary, a me nā mea refractory no ka hoʻoheheʻe ʻana i nā alloys.nā huahana, a me nā pūʻulu hoʻohālikelike i loko o ka spinel.

Hiki i nā huahana ke kōkua i ka hoʻomaikaʻi ʻana i ke kūpaʻa ʻana o ka slag corrosion o nā mea refractory, a hoʻopau i ka pilikia o ka haki ʻana o nā mea i hoʻohui ʻia e ka hoʻohui ʻana i nā mea waiwai magnesium.