Research on Horizontal Electromagnetic Continuous Casting of Sn-P Bronze Strips
In order to improve the quality of tin-phosphor bronze strips, the horizontal electromagnetic continuous casting technology, i.e. imposing alternating electromagnetic field to the horizontal continuous casting process of tin-phosphor bronze strips was developed. The effect of electromagnetic field on the quality of tin-phosphor bronze strips was studied with electron probe microanalysis (EPMA) and optical microscope. The results showed that when the alternating electromagnetic field with 50 Hz frequency and 18 A current was imposed, the crystal grain of the tin-phosphor bronze strips was obviously refined and the segregation and shrinkage cavity were greatly reduced. The quality of tin-phosphor bronze strips was remarkably improved, so the annealing time was shortened from 7 hours to 5 hours, and the service life of graphite mold was extended from 168 hours to 334 hours.
Young Won Chang, Nack J. Kim and Chong Soo Lee
C. H. Hui et al., "Research on Horizontal Electromagnetic Continuous Casting of Sn-P Bronze Strips", Advanced Materials Research, Vols. 26-28, pp. 377-380, 2007