PERMANENT MAGNET MATERIAL - TOKYO SHIBAURA ELECTRIC CO

Title:

PERMANENT MAGNET MATERIAL

Document Type and Number:

Japanese Patent JPS5769709

Kind Code:

A

Abstract:

PURPOSE: To improve the characteristics, e.g., coercive force or the like of a perma- nent magnet material by containing a predetermined amount of tungsten in the finely pulverized powder of R-Co permanent magnet alloy.

CONSTITUTION: 0.01W0.05wt% of tungsten is contained in the finely pulverized powder of R-Co permanent magnet alloy, where R represents rare earth elements. The rare earth elements include, for example, Sm, Y, La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, etc. The R-Co permanent magnet alloy preferably contains 23W42wt% of Sm, 3W15wt% of Cu, 3W15wt% of Fe, 0.01W3wt% of one or more elements selected from the group consisting of T, Zr, Hf, Nb, V, Mn, Mo and Ta, and the residue of Co.

More Like This:

WO/2019/217905	NICKEL-BASED ALLOY EMBODIMENTS AND METHOD OF MAKING AND USING THE SAME
JP6549720	Rare earth cobalt permanent magnets, their manufacturing methods, motors, and devices
JP4631050	MRI-compatible biological Co-Cr-Mo alloy and its manufacturing method

Inventors:

SORI NAOYUKI
YAMAMIYA HIDEKI
TANAKA TADASHI
ISHII TAKASHI

Application Number:

JP14570680A

Publication Date:

April 28, 1982

Filing Date:

October 20, 1980

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOKYO SHIBAURA ELECTRIC CO

International Classes:

C22C19/07; H01F1/053; H01F1/055; (IPC1-7): C22C19/07; H01F1/08

Previous Patent: 選択還元型触媒を用いた排気ガス浄化装置及び排気ガス浄化方法

Next Patent: JPS5769710