wehewehe
ʻO ka brick alumina kiʻekiʻe he ʻano refractory, ʻo ka mea nui ʻo Al2O3. Inā ʻoi aku ka kiʻekiʻe o Al2O3 ma mua o 90%, ua kapa ʻia ʻo ia ka corundum brick. Ma muli o nā kumuwaiwai like ʻole, ʻaʻole kūlike nā kūlana o nā ʻāina like ʻole. No ka laʻana, ma nā ʻāina ʻEulopa, ʻo ka palena haʻahaʻa o Al2O3 maʻiʻo no nā refractory alumina kiʻekiʻe he 42%. Ma Kina, Al2O3 maʻiʻo i loko o alumina kiʻekiʻe alumina puʻunaue maʻamau i ekolu papa: Grade I - Al2O3 maʻiʻo> 75%; papa II - Al2O3 maʻiʻo he 60-75%; papa III - Al2O3 maʻiʻo he 48-60%.
Nā hiʻohiʻona:
1.High refractoriness
2.High wela ikaika
3.High thermal paʻa
4.Neutral refractory
5.Good kū'ē i kaʻakika a me ke kumu slag corrosion
6.High refractoriness ma lalo o ka ukana
7.High wela creep kū'ē
8.Low ike porosity
Hōʻike
| 'ikamu Nā kikoʻī |
Z-48 |
Z-55 |
Z-65 |
Z-75 |
Z-80 |
Z-85 |
| Al2O3 % |
≥48 |
≥55 |
≥65 |
≥75 |
≥80 |
≥85 |
| Fe2O3 % |
≤2.5 |
≤2.5 |
≤2.0 |
≤2.0 |
≤2.0 |
≤1.8 |
| ʻO ka refractoriness°C |
1760 |
1760 |
1770 |
1770 |
1790 |
1790 |
| ʻAiʻi Nui≥ g/cm3 |
2.30 |
2.35 |
2.40 |
2.45 |
2.63 |
2.75 |
| ʻIke ʻia ka porosity % |
≤23 |
≤23 |
≤23 |
≤23 |
≤22 |
≤22 |
| Refractoriness ma lalo o ka ukana 0.2MPa°C |
1420 |
1470 |
1500 |
1520 |
1530 |
1550 |
| Ka ikaika paʻi anuanu MPa |
45 |
45 |
50 |
60 |
65 |
70 |
| Hoʻololi laina mau % |
1500°C×2h |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
Noi:
Hoʻohana nui ʻia nā pōhaku alumina kiʻekiʻe no ka masonry o nā kilns ʻoihana i loko o nā linings, e like me nā kapuahi puhi, nā umu wela wela, ka umu uila top, reverberator, rotary cement kiln a pēlā aku. Ma waho aʻe, hoʻohana nui ʻia nā pōhaku alumina kiʻekiʻe e like me ka regenerative checker bricks, stopper of continue casting system, nozzle bricks, etc.
FAQ
Nīnau: He mea hana a mea kālepa paha ʻoe?
A: He poʻe kālepa mākou, a ʻo kā mākou huahana he kiʻekiʻe kiʻekiʻe a haʻahaʻa.
Nīnau: Hiki iā ʻoe ke hāʻawi i nā laʻana?
A: ʻAe, hiki iā mākou ke hāʻawi i nā hōʻailona manuahi ma hope o kou uku ʻana i kekahi ukana.
Nīnau: he aha kāu mau ʻano hōʻiliʻili?
A: ʻO kā mākou hōʻiliʻili ʻana me T / T, L / C, etc.
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