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The behaviors of highly fluxed (basicity 2, 4, 6, and 8) iron ore pellets heat hardened in the temperature range 1100 °C to 1200 °C were examined and are reported… Click to show full abstract
The behaviors of highly fluxed (basicity 2, 4, 6, and 8) iron ore pellets heat hardened in the temperature range 1100 °C to 1200 °C were examined and are reported here. The highly fluxed (basicity 8) pellets exhibited 103 kg/pellet crushing strength and 43.65 pct porosity when heat hardened at 1180 °C. During heat hardening, calcium di-ferrite and calcium ferrite phases were observed; however, when they were heated at 1200 °C, high crushing strength (458.63 kg/pellet) with low porosity (4.57 pct) were noted due to low melting eutectic formation. In this study, it was possible to prepare highly fluxed pellets without sticking at 1180 °C with good strength and porosity.
Journal Title: Metallurgical and Materials Transactions B
Year Published: 2019
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