ʻAlumina keʻokeʻo i hoʻohui ʻia / Corundum keʻokeʻoʻOluʻoluhe mea refractory kiʻekiʻe, i hana ʻia mai ka pauka alumina kiʻekiʻe ma ka hoʻoheheʻe ʻana ma luna o 2000 ℃ i loko o ka umu arc uila a me ka hoʻomaʻalili ʻana, i hoʻokaʻawale ʻia i nā nui palaoa like ʻole. ʻO ka alumina keʻokeʻo i hoʻopili ʻia ka mea nui no ka hana ʻana i nā mea refractory i hoʻohālikelike ʻole ʻia a me ke ʻano.
Hana ʻia ka alumina keʻokeʻo i hoʻoheheʻe ʻia me ka pauka alumina sodium haʻahaʻa kiʻekiʻe ma ka hoʻoheheʻe ʻana i ka mahana kiʻekiʻe, ka hoʻomaʻalili ʻana i ka crystallization, a laila ka wāwahi ʻana. Aia ka grit alumina keʻokeʻo i hoʻoheheʻe ʻia ma lalo o ka kaohi paʻa e mālama i ka hoʻolaha ʻana o ka nui o ka palaoa a me ke ʻano like.
Hoʻohana pinepine ʻia i nā ladle castables, nā mea holo hao, nā mea hui pū refractory gunning a me nā huahana refractory monolithic ʻē aʻe; No nā mea refractory i hoʻohālikelike ʻia, hoʻohana nui ʻia ia i nā mea maka kiʻekiʻe o ka corundum brick, corundum mullite, ka hoʻomaʻemaʻe kila porous plug brick, ka pū pīpī hoʻohui, ka hana kila a me ka ʻoihana hoʻolei mau.
Hiki ke hoʻohana ʻia hoʻi ia ma ke ʻano he mau mea no ka polishing, ka hoʻolei pololei ʻana, ka pīpī ʻana a me ka uhi ʻana, nā keramika kūikawā
| Paʻakikī Mohs | 9 |
| Ka nui o ka nui | 1.75-1.95g/cm3 |
| ʻO ke kaumaha kikoʻī | 3.95g/cm3 |
| Ka nui o ka leo | 3.6 |
| Kekelē heheʻe | 2250℃ |
| Ke kēkelē paʻakikī | 2000℃ |
Hana ʻia ka alumina keʻokeʻo i hoʻoheheʻe ʻia me ka pauka alumina sodium haʻahaʻa kiʻekiʻe ma ka hoʻoheheʻe ʻana i ka mahana kiʻekiʻe, ka hoʻomaʻalili ʻana i ka crystallization, a laila ka wāwahi ʻana. Aia ka grit alumina keʻokeʻo i hoʻoheheʻe ʻia ma lalo o ka kaohi paʻa e mālama i ka hoʻolaha ʻana o ka nui o ka palaoa a me ke ʻano like.
| Hoʻohana ʻia no ka refractory, castable | |||||
| Nā Waiwai | 0-1 1-3 3-5m/m | F100 F200 F325 | |||
| Waiwai Hoʻohiki | Waiwai Maʻamau | Waiwai Hoʻohiki | Waiwai Maʻamau | ||
| Hoʻohuihui Kemika | Al2O3 | ≥99.1 | 99.5 | ≥98.5 | 99 |
| SiO2 | ≤0.4 | 0.06 | ≤0.30 | 0.08 | |
| Fe2O3 | ≤0.2 | 0.04 | ≤0.20 | 0.1 | |
| Na2O | ≤0.4 | 0.3 | ≤0.40 | 0.35 | |
| Hoʻohana ʻia no nā mea abrasives, pahū ʻana, wili ʻana | |||
| Nā Waiwai | Nā hua palaoa | ||
| 8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# | |||
| Waiwai Hoʻohiki | Waiwai Maʻamau | ||
| Hoʻohuihui Kemika | Al2O3 | ≥99.1 | 99.5 |
| SiO2 | ≤0.2 | 0.04 | |
| Fe2O3 | ≤0.2 | 0.03 | |
| Na2O | ≤0.30 | 0.2 | |
| Hoʻohana ʻia no nā mea abrasives, lapping, Polishing | ||||
| Nā Waiwai | Paʻuka liʻiliʻi | |||
| "W" | W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5 | |||
| "FEPA" | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 | |||
| "JIS" | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000# 10000# 12500# | |||
| Waiwai Hoʻohiki | Waiwai Maʻamau | |||
| Hoʻohuihui Kemika | Al2O3 | ≥99.1 | 99.3 | |
| SiO2 | ≤0.4 | 0.08 | ||
| Fe2O3 | ≤0.2 | 0.03 | ||
| Na2O | ≤0.4 | 0.25 | ||
Nā Pōmaikaʻi
0-1mm ʻO ka alumina keʻokeʻo refractory i hoʻopili ʻia
1. Paʻakikī kiʻekiʻe a me nā ʻāpana mānoanoa. Maikaʻi ka poepoe o nā ʻāpana hoʻokahi.
2. Keʻokeʻo maʻemaʻe ke kala, ʻaʻohe haumia, e hōʻoia i ka papa pale ʻaʻahu a i ʻole ke kala pepa pale a me ka moakāka.
3. Hoʻokaʻawale like ʻana o ka nui o ka ʻāpana, kūlike ke ʻano o ka ʻāpana hoʻokahi, me kahi hopena liʻiliʻi o ka pale ʻana i ke komo ʻana.
4. Paʻa kemika a me ka waikawa, ʻaʻohe hana alkali, maikaʻi loa ke kūpaʻa o ka mahana kiʻekiʻe.
1. Ke one ʻana, ka hoʻowali ʻana a me ka wili ʻana i ka metala a me ke aniani.
2. Hoʻopiha ʻana i ka pena, ka uhi pale ʻaʻahu, ka seramika, a me ka glaze.
3. Hana ʻana i ka huila wili, ka pepa one a me ka lole emery.
4. Hana ʻana o nā membrane kānana seramika, nā paipu seramika, nā papa seramika.
5. No ka hoʻohana ʻana i ka papahele kūpaʻa.
6. Ke one ʻana o nā papa kaapuni.
7. Ke one ʻana o nā moku, nā ʻenekini mokulele, nā ala kaʻaahi a me nā kino o waho.
8. Hiki ke hana ʻia nā ʻano hua alumini oxide i hoʻopili ʻia i ke keʻokeʻo e like me nā koi like ʻole o nā mea kūʻai aku.
Inā he mau nīnau kāu. E ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.