Title:
CORROSION PREVENTIVE TREATMENT OF FE-ND-B PLASTIC MAGNET
Document Type and Number:
Japanese Patent JPS6439005
Kind Code:
A
Abstract:
PURPOSE: To provide an excellent anticorrosive performance without degrading magnetic characteristics, by making an Fe-Nd-B plastic magnet to contain a 1-hydroxybenzotriazole compound.
CONSTITUTION: A plastic magnet made of an Fe-Nd-B or an Fe-Pr-B alloy and a binder is made to contain a 1-hydroxybenzotriazole compound which is formulated by a chemical formula I in which X represents a hydrogen, an alkyl group, a nitro group or a sulfonic group, and M represents a hydrogen, an alkali metal, an alkaline earth metal or an anmonium. As a result, a corrosion preventive treatment can be obtained which can provide the magnet with a high anticorrosive performance without degrading magnetic characteristics of the magnet.
Inventors:
YAMADA KATSUHIRO
IMASHIRO HIDETOMO
KAWAGUCHI TETSUTO
TANIGAWA KEIICHI
MATSUMOTO FUMIO
KOMIYA RIKUHIRO
HASHIZUME TOSHIO
IMASHIRO HIDETOMO
KAWAGUCHI TETSUTO
TANIGAWA KEIICHI
MATSUMOTO FUMIO
KOMIYA RIKUHIRO
HASHIZUME TOSHIO
Application Number:
JP19454487A
Publication Date:
February 09, 1989
Filing Date:
August 05, 1987
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL CO
NIPPON STEEL CORP
NIPPON STEEL CORP
International Classes:
C08K5/34; C08K5/3472; C22C38/00; H01F1/08; B22F1/02; H01F41/02; (IPC1-7): B22F1/02; C08K5/34; H01F1/08
Attorney, Agent or Firm:
Katsuo Naruse