010203
I-Corundum Bricks-Hengli
Izici
Izitini ze-Corundum, ezaziwa nangokuthi izitini ze-alumina, ziyimikhiqizo ephikisayo ye-alumina ephezulu enezici ezimbalwa ezibalulekile:
1. **Ukuhlanzeka Okuphezulu: **Ivamise ukuhlanganisa ngaphezu kuka-90% i-alumina (Al2O3), eqinisekisa izakhiwo ezinhle kakhulu zokuphikisa.
2. **Ukumelana Nokushisa Okuphezulu: **Iyakwazi ukumelana namazinga okushisa afika ku-1900°C, okuwenza afanelekele izindawo ezidinga kakhulu izinga lokushisa eliphezulu.
3. **Amandla Mechanical: **Izitini ze-Corundum zinamandla acindezelayo aphezulu kanye nokumelana nokugqokwa okuhle, okubenza bakwazi ukuphatha imithwalo esindayo nezimo ezilimazayo.
4. **Ukumelana Nokugqwala: **Zimelana nokugqwala okuvela kuma-slags, ama-asidi, ama-alkali, namanye amakhemikhali, andise isikhathi sokuphila kwazo ezindaweni ezinokhahlo.
5. **I-Porosity Ephansi: **I-porosity ephansi isiza ukuvimbela ukungenwa kwezinto ezincibilikisiwe namagesi, ithuthukisa ukuqina kanye nezakhiwo zokuvikela ukushisa.
6. **Ukuzinza kwe-Thermal: **Zibonisa ukuzinza okuhle kakhulu kokushisa kanye nokumelana nokushaqeka kokushisa, okubalulekile ezinqubweni ezihlanganisa ukushintsha kwezinga lokushisa okusheshayo.
7. **Ukuzinza kweDimensional: **Okuqukethwe okuphezulu kwe-alumina kuqinisekisa ukuthi izitini zigcina ukuma kwazo kanye nevolumu emazingeni okushisa aphezulu, zivimbela ukwehluleka kwesakhiwo.
Lezi zici zenza izitini ze-corundum zilungele ukusetshenziswa ezinhlelweni ezihlukahlukene zokushisa okuphezulu, okuhlanganisa izitofu eziqhumayo, izitofu ze-hot blast, izileyibhu zensimbi, nezinye iziko neziko lokumba izimboni.
Uhlelo lokusebenza olujwayelekile
Kusetshenziswa kakhulu ezimbonini ezifana nomanyolo, izinto zobumba zikagesi, i-petrochemical, insimbi, i-foundry, i-alloy steel, ama-refractories, njll. Ukusetshenziswa okujwayelekile okufana ne-reformer yesibili kanye nomugqa wokuphehla igesi, ukwesekwa kombhede we-catalyst, isithando somlilo sesiteshi, ukushisa kabusha iziko lomlilo, njll.
Izikhombo Ezijwayelekile
Ibanga | I-HA-99 | I-HA-98 | I-HA-90 | I-HA-80 | |
I-AI2O3 | % | ≥97.5 | ≥97 | ≥90 | ≥80 |
SiO2 | % | ≤0.18 | ≤0.2 | ≤8.5 | ≤18.5 |
Fe2O3 | % | ≤0.05 | ≤0.1 | ≤0.2 | ≤0.3 |
Ukuminyana kwenqwaba | g/cm3 | ≥3.15 | ≥3.1 | ≥3.1 | ≥2.9 |
I-Porosity ebonakalayo | % | ≤16 | ≤17 | ≤18 | ≤18 |
Amandla Okuchotshozwa Okubandayo | I-MPa | ≥110 | ≥100 | ≥120 | ≥120 |
I-Refractoriness ngaphansi komthwalo (0.1 MPa, 0.6%) | °C | ≥ 1700 | ≥ 1700 | ≥ 1700 | ≥ 1700 |
Ukushisa kabusha Ushintsho Lomugqa (1600°C x8h) | % | ≥-0.2 | ≥-0.2 | ≤0.2 | ≤0.2 |
I-coefficient yokwandisa okushisayo x10-6 Igumbi lokushisa. kuya ku-1300°C | 8.1 | 8.1 | 8.1 | 7.6 |