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
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 ka ʻino a me ke komo ʻana 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 ka spinel ma ke ʻano he mea hoʻopaʻa paʻa (A i kapa ʻia ʻo cementing phase, matrix), magnesia-alumina bricks me periclase e like me ka pae aniani nui, i ka wā e hoʻololi nui ai ka mahana, 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 lepo (magnesia-alumina bricks ʻO 50 ~ 150 ke kūpaʻa wela. manawa).
Eia kekahi, no ka mea, he mau waiwai maikai ko spinel e like me ka paakiki kiʻekiʻe, ka waiwai kemika paʻa, a me ka helu heheʻe kiʻekiʻe, a he kūpaʻa loa i ka corrosion e nā melts like ʻole i nā wela kiʻekiʻe, ʻo ka hele ʻana o nā mineral spinel i nā huahana ua hoʻomaikaʻi i ka hana kiʻekiʻe o ka wela o ka huahana.
ʻO ke kumu nui o ke kiʻekiʻe o ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa o nā pōhaku lepo magnesia-alumina (ʻaʻole i emi ka hoʻomaka ʻana ma mua o 1550-1580 ℃) ma mua o nā pōhaku magnesia (ʻo ka hoʻomaka ʻana ma lalo o 1550 ℃) ʻo ia ka ʻokoʻa o ka haku mele. .
No 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 ke kū'ē i ka alkaline slag erosion, a me ke kū'ēʻana i ka hoʻoheheʻeʻiaʻana o ka metala. .
ʻIke Kumu
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.
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 hanu, nā pōhaku noho, nā ladles, nā uhi wela 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 ka magnesium maka.
