Sulphur powder was added to grey iron melts using cored wire injection technology to improve machinability. The influence of different injection speeds into the ladle on sulphur recovery efficiency was studied, followed by an evaluation of the microstructure, mechanical properties and machinability of the cast iron. The peak sulphur recovery efficiency is 82·5%. Machinability increases with sulphur content.
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References
1.
Anon. Tracking grey iron machinability, part 1. Foundry Manage. Technol., 2004, 132, (12), 20–21.
