| 简介 |
A of the present invention, by improving adhesion of the heat provides a rare earth element based permanent magnet by a rope.. Constitution as the rare earth element based permanent magnet of the present invention, laminate as a rare earth element based permanent magnet coating for plating, plated coating film of 0.1 m or more of m hereinafter micro 2 thickness most ticket layer micro SnCu alloy plating coating and, composition of coating alloy plating said SnCu 55mass % cu 35mass % or more Sn is less than and the balance, said SnCu alloy plating for coating positioned under a Ni plating film and including at least the plated coating film cu a based plated coating film has at least one layer of 2, said based plating film is taken directly under SnCu alloy plating coating a Ni plating is characterized in that the coating film. Manufactured by using such AlN crystal substrate rare earth element based permanent magnet of the present invention a a bonded structure comprising a, silicone-based adhesive in combination with, said strength is obtained good the initial adhesion, the lowering in the bonding strength of even after test moisture is less. |
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