軟磁性金属扁平粉末およびそれを用いた樹脂複合シート並びに成形加工用樹脂複合コンパウンド

摘要

Problem to be solved: to provide a soft magnetic metal flat powder having a high permeability and a temperature coefficient of permeability adjusted, a resin composite sheet using the material, and a resin composite composition for molding.Solution: a soft magnetic metallic flat powder characterized in that the temperature coefficient K of the permeability of a soft magnetic metallic flat powder of Fe Al Si composition satisfies the following equations (1) and (3) in the range of -40 to 85 ° C. and has a coercive force of 70 A / m or less.K = μ（ 0 degrees Celsius) μ（－ 40 ℃) / μ（－ > 0 (1), k = μ（ 40 degrees Celsius) μ（ 0 ℃) / μ（ 0 ° C. > 0 (2), k = μ（ 85 ℃) μ（ 40 ℃) / μ（ Temperature coefficient of μ： Permeability μ’： Real permeability μ’’： Imaginary permeabilityThe resin composite sheet is made of soft magnetic metal flat powder and resin and has a coercive force of 80 A / m or less. Resin composite composition for injection molding and extrusion molding.Diagram