IiMveliso eziPhakamileyo zokuChasa iThermal
010203
Izitena zaseCorundum-Hengli
Iimbonakalo
Izitena ze-Corundum, ezikwabizwa ngokuba zizitena ze-alumina, ziimveliso ezichasene ne-alumina ephezulu enezinto ezininzi ezibalulekileyo:
1. **Ukucoceka okuphezulu: **Ngokuqhelekileyo iqulunqwe ngaphezu kwe-90% ye-alumina (Al2O3), iqinisekisa iipropati ezigqwesileyo eziphikisayo.
2. **Ukumelana noBuqondo obuPhezulu: **Iyakwazi ukumelana namaqondo obushushu ukuya kuthi ga kwi-1900 ° C, ibenze bafaneleke kwezona ndawo zifuna kakhulu ubushushu obuphezulu.
3. **Amandla oomatshini: **Izitena ze-Corundum zinamandla aphezulu okuxinzelela kunye nokumelana nokunxiba kakuhle, okubenza bakwazi ukuphatha imithwalo enzima kunye neemeko ezinqabileyo.
4. **Ukunyangwa kokuMhlwa: **Baxhathisa ukuthotywa kwe-slags, i-asidi, i-alkalis, kunye nezinye iikhemikhali, bandisa ubomi babo kwiimeko ezinzima.
5. **I-Porosity ephantsi: **I-porosity ephantsi inceda ukukhusela ukungeniswa kwezinto ezityhidiweyo kunye neegesi, ukunyusa ukuqina kunye neempawu ze-thermal insulation.
6. **Ukuzinza kweThermal: **Babonisa ukuzinza okuhle kakhulu kwe-thermal kunye nokuchasana nokutshatyalaliswa kwe-thermal, okubaluleke kakhulu kwiinkqubo ezibandakanya utshintsho olukhawulezayo lobushushu.
7. **Uzinzo lweDimensional: **Umxholo ophezulu we-alumina uqinisekisa ukuba izitena zigcina ukuma kwazo kunye nomthamo kumaqondo aphezulu okushisa, ukuthintela ukungaphumeleli kwesakhiwo.
Ezi mpawu zenza izitena ze-corundum zilungele ukusetyenziswa kwizicelo ezahlukeneyo zobushushu obuphezulu, kubandakanywa izitovu eziqhumayo, izitovu ezitshisayo, iileyile zentsimbi, kunye nezinye iziko lemizi-mveliso kunye neetoni.
Usetyenziso oluqhelekileyo
Isetyenziswe ngokubanzi kumashishini afana nesichumisi, i-electroceramics, i-petrochemical, insimbi, isiseko, i-alloy steel, i-refractories, njl.
Iizalathisi eziqhelekileyo
| IBanga | HA-99 | HA-98 | HA-90 | 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 |
| Unizi lolwapho kuyiwa khona | g/cm3 | ≥3.15 | ≥3.1 | ≥3.1 | ≥2.9 |
| I-Porosity ebonakalayo | % | ≤16 | ≤17 | ≤18 | ≤18 |
| Amandla okutyumza okubandayo | MPa | ≥110 | ≥100 | ≥120 | ≥120 |
| I-Refractoriness phantsi komthwalo (0.1 MPa, 0.6%) | °C | ≥ 1700 | ≥ 1700 | ≥ 1700 | ≥ 1700 |
| Ukufudumeza kwakhona utshintsho lomgca (1600°C x8h) | % | ≥-0.2 | ≥-0.2 | ≤0.2 | ≤0.2 |
| Ukwandiswa kwe-Thermal coefficient x10-6 Ubushushu begumbi. ukuya kwi-1300°C | 8.1 | 8.1 | 8.1 | 7.6 |
