摘要:
A soft magnetic material includes a plurality of composite magnetic particles (30) having metallic magnetic particles (10) that are composed of pure iron, and an insulation film (20) that surrounds the surface of the metallic magnetic particles (10), wherein the manganese content of the metallic magnetic particles (10) is 0.013 mass % or less, and is more preferably 0.008 mass % or less. Hysteresis loss can thereby be effectively reduced.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (30) having metallic magnetic particles (10) that are composed of pure iron, and an insulation film (20) that surrounds the surface of the metallic magnetic particles (10), wherein the manganese content of the metallic magnetic particles (10) is 0.013 mass % or less, and is more preferably 0.008 mass % or less. Hysteresis loss can thereby be effectively reduced.
摘要:
The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm
摘要:
An object of the present invention is to provide a soft magnetic material exhibiting excellent magnetic characteristics regardless of the frequency to be applied and a dust core produced from the soft magnetic material. The means for solving the invention is a soft magnetic material that comprises metal magnetic particles 10 containing iron and oxygen. The ratio of oxygen contained in metal magnetic particles 10 is more than 0 and less than 0.05% by mass. A dust core produced using such a soft magnetic material has a coercive force of 2.0×102 A/m or less.
摘要翻译:本发明的目的是提供一种软磁性材料,而不管所施加的频率如何,并且由软磁性材料制成的压粉芯是显示出优异的磁特性的。 解决本发明的方法是包含含有铁和氧的金属磁性颗粒10的软磁性材料。 金属磁性粒子10中所含的氧的比例大于0且小于0.05质量%。 使用这种软磁性材料制成的防尘芯的矫顽力为2.0×10 2 A / m以下。
摘要:
The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm
摘要:
The object of the present invention is to provide a method for manufacturing a soft magnetic material, a soft magnetic material, a method for manufacturing a P/M soft magnetic material, and a P/M soft magnetic material which achieve the desired magnetic properties. In the method for manufacturing the soft magnetic material of the present invention, there is a first heat treatment step (step S3) in which a metal magnetic particle 10, which has iron as its main component, is heat treated to a temperature of 900 degrees C. or greater and less than the melting point of metal magnetic particle 10. After the first heat treatment step (step S3), there is a step for forming a plurality of composite magnetic particles 30 which are metal magnetic particles 10 surrounded by an insulation covering 20 (step S6).
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.