JPS6439009A - Corrosion preventive treatment of fe-nd-b sintered magnet - Google Patents

Corrosion preventive treatment of fe-nd-b sintered magnet

Info

Publication number
JPS6439009A
JPS6439009A JP19454587A JP19454587A JPS6439009A JP S6439009 A JPS6439009 A JP S6439009A JP 19454587 A JP19454587 A JP 19454587A JP 19454587 A JP19454587 A JP 19454587A JP S6439009 A JPS6439009 A JP S6439009A
Authority
JP
Japan
Prior art keywords
compound
magnet
sintered magnet
group
degrading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19454587A
Other languages
Japanese (ja)
Inventor
Katsuhiro Yamada
Hidetomo Imashiro
Tetsuto Kawaguchi
Keiichi Tanigawa
Fumio Matsumoto
Hiroaki Sakamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Nippon Steel Chemical and Materials Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, Nippon Steel Chemical Co Ltd filed Critical Nippon Steel Corp
Priority to JP19454587A priority Critical patent/JPS6439009A/en
Publication of JPS6439009A publication Critical patent/JPS6439009A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To enable displaying an excellent anticorrosive performance without a degrading magnetic characteristic, by treating a Fe-Nd-B sintered magnet with a 1-hydroxydenzotriazole compound. CONSTITUTION:An Fe-Nd-B sintered magnet is treated with an aqueous solution of a 1-hydroxybenzotriazole compound, which can provide the magnet with a corrosion prevention effect. The 1-hydroxybenzotriazole compound is a compound which is formulated by a chemical formula I in which X represents a hydrogen element, an alkyl group, a nitro group or a sulfonic group, and M represents a hydrogen, an alkali metal, an alkaline earth metal or an ammonium. And for the 1-hydroxybentriazole compound, the OM group thereof is reacted with a metal in a predetermined medium to produce a cyclic chelate compound, thereby a sufficient corrosion prevention effect is expected. As a result, the magnet can be provided with a high corrosion resistance, without degrading the magnetic characteristic of the magnet.
JP19454587A 1987-08-05 1987-08-05 Corrosion preventive treatment of fe-nd-b sintered magnet Pending JPS6439009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19454587A JPS6439009A (en) 1987-08-05 1987-08-05 Corrosion preventive treatment of fe-nd-b sintered magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19454587A JPS6439009A (en) 1987-08-05 1987-08-05 Corrosion preventive treatment of fe-nd-b sintered magnet

Publications (1)

Publication Number Publication Date
JPS6439009A true JPS6439009A (en) 1989-02-09

Family

ID=16326313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19454587A Pending JPS6439009A (en) 1987-08-05 1987-08-05 Corrosion preventive treatment of fe-nd-b sintered magnet

Country Status (1)

Country Link
JP (1) JPS6439009A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011062A1 (en) * 1995-09-22 1997-03-27 Bayer Aktiengesellschaft Non-explosive preparations of 1-hydroxybenzotriazole
JP2006283042A (en) * 2005-03-31 2006-10-19 Hitachi Ltd Fluoride coat film forming treatment liquid, fluoride coat film forming method and magnet
JP2009088195A (en) * 2007-09-28 2009-04-23 Tdk Corp Rare earth magnet and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011062A1 (en) * 1995-09-22 1997-03-27 Bayer Aktiengesellschaft Non-explosive preparations of 1-hydroxybenzotriazole
JP2006283042A (en) * 2005-03-31 2006-10-19 Hitachi Ltd Fluoride coat film forming treatment liquid, fluoride coat film forming method and magnet
JP2009088195A (en) * 2007-09-28 2009-04-23 Tdk Corp Rare earth magnet and manufacturing method thereof

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