| 摘要 |
PURPOSE:To extremely easily manufacture a uniform alloy, by subjecting a magnetic powder consisting of iron, Ni, and Co to grain-size regulation and then to electroless plating in a plating bath consisting of nickel sulfate, hypophos phite, etc., and by applying compacting and sintering to the above plated mag netic powder. CONSTITUTION:The magnetic powder consisting of iron, Ni, and Co is subjected to grain-size regulation and then to electroless plating in an electroless plating bath consisting of nickel sulfate, sodium hypophosphite, sodium succinate, sodium malate, etc., so that a plating layer of the prescribed thickness is provided to the whole surface of the powder. The resulting magnetic powder having a plating layer is compacted into the prescribed shape, and the green compact is sintered. In this way, alloying diffusion can be sufficiently carried out because an Ni-P alloy is uniformly arranged all over the sintered magnetic alloy and further the contact area between the plating layer and the magnetic powder is increased, so that uniform sintered magnetic alloy can be manufactured extremely easily. |
