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Indexed by:会议论文

Date of Publication:2007-11-05

Included Journals:SCIE、EI、CPCI-S

Volume:26-28

Page Number:377-+

Key Words:Tin-phosphor Bronze Strip Plate; Horizontal Electromagnetic Continuous Casting; Alternating electromagnetic field; Quality

Abstract: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.