Nā Piliki Mullite a me nā Piliki Sillimanite
Piliki Mullitehe piliki refractory alumina kiʻekiʻe me ka mullite (3Al₂O₃·2SiO₂) ma ke ʻano he pae kristal nui, ʻo ia wale nō ka mea pae kristal wela kiʻekiʻe paʻa i ka ʻōnaehana Al₂O₃-SiO₂. Loaʻa iā ia ka paʻakikī wela kiʻekiʻe loa (ʻaʻohe deformation ma luna o 1600 ℃ no ka hoʻohana lōʻihi, ultra-low creep), hana haʻalulu thermal maikaʻi loa (hoʻonui wela haʻahaʻa, anti-cracking/peeling), kūpaʻa corrosion koʻikoʻi (kū i ka acidic/neutral slag scouring a me ka melt corrosion, liʻiliʻihaumia), ka ikaika compressive wela kiʻekiʻe o ka lumi a me ka porosity ʻike ʻia ma ke ʻano waena, me nā kikoʻī piha a me ka hoʻopilikino maʻalahi, pili nui i nā ʻoihana wela kiʻekiʻe like ʻole, e lilo ia i mea refractory makemake ʻia no ka uhi kumu o nā umu wela kiʻekiʻe like ʻole.
Ka Hoʻokaʻawale ʻana o ka Huahana:
1. Piliki Mullite Sintered:Hana ʻia mai ka bauxite a me ka silica (1600-1700℃ sintering), Al₂O₃ 65%-72%. Kūpono ke kumukūʻai, oʻo, kūpono no nā kūlana maʻamau mahana waena-kiʻekiʻe; loaʻa i nā piliki maʻamau/kūikawā, hoʻohana nui ʻia i nā mea kūkulu hale a me nā umu metallurgy.
2. Piliki Mullite i hoʻohui ʻia:Hoʻopili ʻia me ka uila (ma luna o 1900 ℃), kristal ʻoi aku ka paʻakikī, ʻoi aku ka paʻa o ke ʻano. Al₂O₃ 70%-75%, ʻoi aku ka maikaʻi o ke kūpaʻa ʻana i ka haʻalulu/ka palaho, haʻahaʻa loa ke kolo ʻana. Kūpono no nā kūlana holoi ikaika o ke kikowaena wela kiʻekiʻe (ma luna o 1650 ℃) (nā umu hoʻoheheʻe aniani, metallurgy kiʻekiʻe).
3. Piliki Zircon Mullite:ʻO ka mea hoʻohui Mullite + zircon (ZrSiO₄) (1650-1720℃ sintering). Al₂O₃ 68%-75%, ZrO₂ 8%-15%, ʻoi aku ka ikaika o ke kūpaʻa ʻana i ka ʻino. Hoʻohana ʻia i nā ʻāpana koʻikoʻi o ka umu hoʻoheheʻe aniani a me nā umu hoʻoheheʻe non-ferrous kiʻekiʻe-ʻino.
4. Pōhaku Mullite Maʻemaʻe Kiʻekiʻe:ʻO ka alumina/silica maʻemaʻe kiʻekiʻe, Fe₂O₃≤0.2%, Al₂O₃ 72%-78%, kūpaʻa ma luna o 1850℃. ʻAʻohe haumia, kūpaʻa wela kiʻekiʻe maikaʻi loa, no nā hiʻohiʻona maʻemaʻe kiʻekiʻe (metala pololei, umu keramika uila).
5. Nā ʻāpana i hana mua ʻia ʻo Mullite:Hoʻopilikino ʻia e ka nui/ʻano o ka umu, ʻaʻohe ʻoki ma kahi, hana kūkulu kiʻekiʻe, sila maikaʻi. Kūpono no nā ʻāpana umu ʻokoʻa (nā kapuahi pahū wela, nā umu nahā), e hōʻemi ana i ka pilikia o ka hāʻule ʻana o nā piliki.
Piliki silimanateHana ʻia ia mai ka sillimanite kūlohelohe (Al₂SiO₅, ʻo ka ʻike Al₂O₃ theoretical 62.9%) ma o ka batching, forming a me ka sintering wela kiʻekiʻe. ʻO kona ʻano nui, ʻo ia ka hoʻololi ʻana o ka sillimanite i ka pae mullitization ma ke kiʻekiʻe wela (1300-1500 ℃), me ka hoʻonui ʻana o ka nui (2%-3%), hiki ke hoʻopau i ka emi ʻana o ka sintering o ke kino brick, e hoʻonui ai i ke kino brick a ʻoi aku ka maikaʻi o ka sila ʻana. ʻO kona refractoriness he 1770-1830 ℃, kūpono loa ia no nā kūlana hana waena a me ke kiʻekiʻe me nā loli wela nui a me ka palaho kemika, me ka hana kumukūʻai koʻikoʻi.
Ka Hoʻokaʻawale ʻana o ka Huahana:
1. Piliki Sillimanite Maʻamau:ʻO ka sillimanite kūlohelohe (Al₂O₃ 60%-62%) + bauxite/lepo lepo, sintering maʻamau. Porosity kūpono, haʻalulu wela maikaʻi, kumukūʻai haʻahaʻa; no ka mahana kiʻekiʻe maʻamau, ka loli pinepine o ka mahana (ʻāʻī umu pahū, nā lako umu seramika).
2. Piliki Silimanite Maʻemaʻe Kiʻekiʻe:ʻO ka sillimanite kūlohelohe kiʻekiʻe-maʻemaʻe (Al₂O₃ 62%-65%), Fe₂O₃≤0.3%, 1580-1650℃ sintering. ʻOi aku ka paʻa, ʻoi aku ka maikaʻi o ke kūpaʻa alkali/corrosion; no ka palaho kemika iki (nā umu aniani, nā umu hoʻoheheʻe ʻole-ferrous).
3. Piliki Hui ʻia ʻo Sillimanite-Mullite:ʻO Sillimanite + mullite, hoʻololi ponoʻī i ka hoʻololi ʻana o ka pae + kūpaʻa wela kiʻekiʻe. ʻO Al₂O₃ 63%-68%, kaulike i ke kū'ē ʻana i ka haʻalulu wela/ke kū'ē ʻana i ka kolo; no ka loli nui o ka mahana, ka halihali ukana wela kiʻekiʻe (lalo o ka umu pahū, kahawai kahe aniani).
Nā huahana piliki Sillimanite:Piliki kahawai, ʻauwaha kahe, paipu wili, kīʻaha hānai, apo puka, hoe hoʻoulu, kuʻi, paukūʻoloka hānai, piliki ʻōpala poloka ahi, poloka damper, piliki hoʻāka, uhi kīʻaha hānai, piliki ma o ka lua, piliki puhi, kaola, piliki uhi a me nā ʻano like ʻole a me nā kikoʻī ʻē aʻe.
Nā Pōmaikaʻi Koʻikoʻi:
1. Hoʻololi ʻana i ka Pae Hoʻonui ponoʻī:Hoʻopau ka hoʻonui ʻana o ka mullitization wela kiʻekiʻe i ka emi ʻana, e hōʻoiaʻiʻo ana i ke kiʻekiʻe o ka compactness a me ka sila maikaʻi.
2. Ke kūpaʻa wela kaulike:Hoʻonui haʻahaʻa wela, kūpaʻa haʻalulu/abrasion maikaʻi loa, kūpono no nā loli wela pinepine.
3. Kūʻai Kūpono Kiʻekiʻe:ʻO ka mea maka sillimanite kūlohelohe, haʻahaʻa ke kumukūʻai ma mua o nā pōhaku mullite, kūpono no nā hiʻohiʻona koʻikoʻi i ke kumukūʻai.
4. Kū'ē maikaʻi loa i ka Slag:Kūpaʻa i ka pala o ka slag/aniani wai a me ke komo ʻana i ka wela kiʻekiʻe, ʻaʻole maʻalahi ke wehe.
5. Kūlohelohe a me ke aloha i ke kaiapuni:ʻAʻohe haumia ʻino, ka haumia liʻiliʻi o nā mea, kūpono no nā umu aloha kaiapuni.
| Nā huahana | ʻekoluHaʻahaʻaMullite | ʻO ka Mullite i hoʻopaʻa ʻia | ʻO ka Mullite Silimanite | Hoʻohui ʻiaMullite | ||||
| Papa Kuhikuhi | RBTM-47 | RBTM-65 | RBTM-70 | RBTM-75 | RBTA-60 | RBTA-65 | RBTFM-75 | |
| Ka paʻakikī o ke kūpaʻa (℃) ≥ | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1810 | |
| Ka nui o ka nui (g/cm3) ≥ | 2.42 | 2.45 | 2.50 | 2.60 | 2.48 | 2.5 | 2.70 | |
| Ka Porosity ʻIke ʻia (%) ≤ | 12 | 18 | 18 | 17 | 18 | 18 | 16 | |
| Ikaika Kuʻi Anu (MPa) | 60 | 60 | 70 | 80 | 70 | 70 | 90 | |
| Hoʻololi Laina Mau Loa (%) | 1400°×2h | +0.1 -0.1 | | | | | | |
| 1500°×2h | | +0.1 -0.4 | +0.1 -0.4 | +0.1 -0.4 | +1 -0.2 | ±0.2 | ±0.1 | |
| Refractoriness Under Load@0.2MPa(℃) ≥ | 1520 | 1580 | 1600 | 1600 | 1600 | 1620 | 1700 | |
| Creep Rate@0.2MPa 1200°×2h(%) ≤ | 0.1 | ― | ― | ― | ― | ― | ― | |
| Al2O3(%) ≥ | 47 | 64 | 68 | 72 | 60 | 65 | 75 | |
| Fe2O3(%) ≤ | 1.2 | 0.8 | 0.8 | 0.7 | 1.0 | 0.8 | 0.5 | |
Nā Piliki Mullite:
1. ʻOihana Metallurgical: Kapuahi pahū wela, ʻauamo umu pahū, uhi ladle, umu hoʻoheheʻe metala ʻole ferrous;
2. ʻOihana Hana Hale: ʻĀpana wela kiʻekiʻe o ka umu seramika, ʻāpana hoʻololi o ka umu sima rotary, umu tunnel refractory;
3. ʻOihana Aniani: Mea hana hou, kahawai, holoi a me ka paia ʻaoʻao o ka loko hana o ka umu hoʻoheheʻe aniani;
4. ʻOihana Kemika: umu haki Petrochemical, calciner wela kiʻekiʻe, umu hoʻomoʻa catalyst;
5. Kahua Kiʻekiʻe: Uila keramika uila, umu hao kila pololei (kūpono no ke ʻano maʻemaʻe kiʻekiʻe).
Nā Piliki Silimanite:
1. ʻOihana Metallurgical: Piliki pale lalo o ka umu pahū, ka uhi ʻāʻī o ka umu, kahi puka hao, ka ʻāpana wela waena a me ka haʻahaʻa o ke kapuahi pahū wela;
2. ʻOihana Aniani: ʻO ka paia ʻaoʻao o ka loko wai hana, ke kahawai kahe, ka piliki kahawai a me ka mea nānā hou i ka brick o ka umu hoʻoheheʻe aniani;
3. ʻOihana Pālolo: Wahi puhi o ka umu ahi pālolo, nā lako umu ahi (saggar, papa), ka uhi umu ahi tunnel;
4. ʻOihana Kemika: ʻO ka uhi umu hoʻoheheʻe metala ʻole-ferrous, ka umu hoʻomoʻa wela kiʻekiʻe, ka umu hoʻomoʻa waikawa sulfuric;
5. Nā Māhele ʻē aʻe: ʻĀpana wela kiʻekiʻe o ka mea puhi ʻōpala, ka uhi hoʻomehana mua o ka umu sima (kūpono no ke ʻano maʻamau).
Nā Nīnau i Nīnau Pinepine ʻia
Pono kōkua? E kipa aku i kā mākou mau kahua kākoʻo no nā pane i kāu mau nīnau!
He mea hana maoli mākou, ua loea kā mākou hale hana i ka hana ʻana i nā mea refractory no nā makahiki he 30 a ʻoi. Hoʻohiki mākou e hāʻawi i ke kumukūʻai maikaʻi loa, ka lawelawe mua a me ka lawelawe ma hope o ke kūʻai aku.
No kēlā me kēia kaʻina hana, loaʻa iā RBT kahi ʻōnaehana QC piha no ka hoʻohuihui kemika a me nā waiwai kino. A e hoʻāʻo mākou i nā waiwai, a e hoʻouna ʻia ka palapala hōʻoia maikaʻi me nā waiwai. Inā he mau koi kūikawā kāu, e hoʻāʻo mākou i ka maikaʻi loa e hoʻokō iā lākou.
Ma muli o ka nui, ʻokoʻa ka manawa hoʻouna. Akā ke hoʻohiki nei mākou e hoʻouna koke me ka maikaʻi i hōʻoia ʻia.
ʻOiaʻiʻo, hāʻawi mākou i nā laʻana manuahi.
ʻAe, ʻoiaʻiʻo, ua ʻoluʻolu ʻia ʻoe e kipa i ka hui ʻo RBT a me kā mākou huahana.
ʻAʻohe palena, hiki iā mākou ke hāʻawi i ka manaʻo maikaʻi loa a me ka hoʻonā e like me kou kūlana.
Ua hana mākou i nā mea refractory no nā makahiki he 30 a ʻoi, loaʻa iā mākou ke kākoʻo loea ikaika a me ka ʻike waiwai, hiki iā mākou ke kōkua i nā mea kūʻai aku e hoʻolālā i nā kilns like ʻole a hāʻawi i ka lawelawe hoʻokahi.
