Silicon carbidentxiv rau hauv qhov cub kom dhau los ua Si thiab C ntawm cam khwb cia hlau. Ib qho yog nce cov ntsiab lus carbon, thiab lwm qhov yog txhawm rau txhim kho qhov txo qis ntawm cov hlau molten.
Zoo heev txo qhov tsis zoo ntawm corrosion ntawm lub cub tawg lub cev. Tiv thaiv carbide nag lossis ua kom cov ntsiab lus ferrite, ua cov cam khwb cia hlau qauv ntom, thiab ua kom txoj kev sib luag du.
Nce tus naj npawb ntawm cov ductile hlau graphite npas rau ib cheeb tsam. Txhim kho tus nqi ntaus pob. Nws kuj muaj cov txiaj ntsig zoo ntawm kev txo qis cov hlau tsis muaj hlau thiab cov slag inclusions, tshem tawm cov kab noj hniav, thiab tshem tawm cov pores subcutaneous.
| Qib | Chemical Compositions (%) | |||
| SiC | FC | Fe2O 3 | Moisture | |
| Min | Max | |||
| Sib 90 | 90.0 | 3.0 | 1.2 | 0.5 |
| Sib 88 | 88.0 | 4.0 | 1.5 | |
| Sib 85 | 85.0 | 4.5 | 1.8 | |
| Sib 80 | 80.0 | 5.0 | 3.0 | |
| Sib 70 | 70.0 | 8.0 | 4.0 | |