POWDER FOR MAGNETIC CORE, POWDER MAGNETIC CORE, AND THEIR PRODUCTION METHODS
Disclosed is a method for producing a powder for a magnetic core, which is characterized by carrying out an alkoxide film formation step and a silicone resin film formation step to form an insulation film composed of an alkoxide film and a silicone resin film on the surface of a pure iron powder; wh...
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Main Authors | , , , , , |
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Format | Patent |
Language | English Korean |
Published |
30.06.2010
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Subjects | |
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Abstract | Disclosed is a method for producing a powder for a magnetic core, which is characterized by carrying out an alkoxide film formation step and a silicone resin film formation step to form an insulation film composed of an alkoxide film and a silicone resin film on the surface of a pure iron powder; wherein the alkoxide film formation step comprises immersing a pure iron powder in an alkoxide-containing solution which is prepared by mixing a Si alkoxide having an organic group with a polar group containing at least one atom selected from N, P, S and O atoms and an Al alkoxide with a dehydrated organic solvent, and drying the immersion product to remove the dehydrated organic solvent, thereby forming an alkoxide film comprising an Al-Si-O-type composite oxide on the surface of the pure iron powder; and the silicone resin film formation step comprises immersing the pure iron powder having the alkoxide film formed thereon in a silicone resin-containing solution which is prepared by mixing a silicone resin with an organic solvent, and drying the immersion product to remove the organic solvent, thereby forming a silicone resin film on the alkoxide film. |
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AbstractList | Disclosed is a method for producing a powder for a magnetic core, which is characterized by carrying out an alkoxide film formation step and a silicone resin film formation step to form an insulation film composed of an alkoxide film and a silicone resin film on the surface of a pure iron powder; wherein the alkoxide film formation step comprises immersing a pure iron powder in an alkoxide-containing solution which is prepared by mixing a Si alkoxide having an organic group with a polar group containing at least one atom selected from N, P, S and O atoms and an Al alkoxide with a dehydrated organic solvent, and drying the immersion product to remove the dehydrated organic solvent, thereby forming an alkoxide film comprising an Al-Si-O-type composite oxide on the surface of the pure iron powder; and the silicone resin film formation step comprises immersing the pure iron powder having the alkoxide film formed thereon in a silicone resin-containing solution which is prepared by mixing a silicone resin with an organic solvent, and drying the immersion product to remove the organic solvent, thereby forming a silicone resin film on the alkoxide film. |
Author | HOSHINA EISUKE TANI MASAAKI KISHIMOTO HIDEFUMI TAJIMA SHIN ICHIGOZAKI DAISUKE OKAMOTO DAISUKE |
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Snippet | Disclosed is a method for producing a powder for a magnetic core, which is characterized by carrying out an alkoxide film formation step and a silicone resin... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS CASTING ELECTRICITY INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WORKING METALLIC POWDER |
Title | POWDER FOR MAGNETIC CORE, POWDER MAGNETIC CORE, AND THEIR PRODUCTION METHODS |
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