| 简介 |
PROBLEM TO BE SOLVED : To provide a rare-earth bonded magnet that has excellent magnetic characteristics and is excellent in required characteristics, such as the corrosion resistance, etc., and to provide a method of manufacturing the magnet. SOLUTION : This rare-earth bonded magnet has a molded magnet body containing rare-earth alloy powder and a coupling agent and a plated coating film provided on the surface of the magnet body. The rare-earth alloy powder has a composition expressed by the compositional formula of (Fe1-m Tm )100-x-y-z Qx Ry Mz (wherein, T, Q, R and M respectively denote one ore more kinds of element selected out of Co and Ni, at least one kind of element selected out of B and C and certainly containing B, one or more kinds of rate-earth elements substantially containing no La nor Ce, and at least one kind of metallic element selected from among Ti, Zr, and Hf and certainly containing Ti, and x, y, z and m denote percentage compositions (at.%) respectively meeting the inequalities of 10
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