| 摘要 |
PURPOSE:To obtain a magnetic alloy called gold-alloy precious ornament capable of providing prescribed magnetic flux density in the shape of ornaments, by incorporating Au, Pt, and Co in a specific ratio. CONSTITUTION:This Au-Pt-Co permanent magnet contains, by weight, 50-75% Au, 16-40% Pt, 3-15% Co, and, if necessary, 2-12% of one or more elements among Fe, Ni, Cu, Pd, and Ag. This alloy is regarded as gold alloy as it contains Au by >=50% and, moreover, it has a magnetic flux density of >=500 gauss necessary for magnetic personal ornaments to produce medical effects. |
