MANUFACTURING METHOD OF DUST CORE

To provide a soft magnetic dust core with high density and high characteristics.MEANS FOR SOLVING THE PROBLEM: In a manufacturing method of a dust core, an Fe-B-Si-PC-Cu-based magnetic powder having first crystallization start temperature Tx1 and second crystallization start temperature Tx2 and insu...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YAMAKI MAKOTO, ONISHI NAOTO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a soft magnetic dust core with high density and high characteristics.MEANS FOR SOLVING THE PROBLEM: In a manufacturing method of a dust core, an Fe-B-Si-PC-Cu-based magnetic powder having first crystallization start temperature Tx1 and second crystallization start temperature Tx2 and insulation powder having a glass transition temperature Tg and constituting a coating film to be formed on the surface of the powder are prepared, and the magnetic powder and the insulating powder satisfy Tx1-Tg≥5°C. The mixture of the magnetic powder and the insulating powder is heated with a molding pressure applied to form the coating film on the surface of the magnetic powder.SELECTED DRAWING: None 【課題】高密度かつ高特性の軟磁性圧粉磁心を提供する。【解決方法】圧粉磁心の製造方法であって、第１結晶化開始温度Ｔｘ１及び第２結晶化開始温度Ｔｘ２を有するＦｅ－Ｂ－Ｓｉ－Ｐ－Ｃ－Ｃｕ系磁性粉末と、前記粉末の表面に形成すべき被膜を構成するガラス転移温度Ｔｇを有する絶縁粉末とを用意するとともに、前記磁性粉末と前記絶縁粉末とはＴｘ１－Ｔｇ≧５℃なる条件を満たし、前記磁性粉末及び前記絶縁粉末との混合物に対して、成形圧力を印加した状態で加熱し、前記磁性粉末の表面に前記被膜を形成する。【選択図】なし