NDLI: Methods of Assembling Large Magnetic Blocks From NdFeB Magnets With a High Value of <formula formulatype=inline> <tex>$({rm BH})_{max}$</tex></formula> and Their Influence on the Magnetic Induction Reached in an Air Gap of a Magnetic Circuit

Content Provider	IEEE Xplore Digital Library
Author	Zesulka, V. Straka, P.
Copyright Year	1965
Abstract	We have investigated methods of assembling large magnetic blocks from NdFeB magnets with a high value of the maximum energy product, and inserting these blocks into magnetic circuits. We found that the magnetic induction in the middle of an air gap between large opposing magnetic blocks in a closed magnetic circuit depends, in addition to other parameters, on the basic method of assembling these magnetic blocks. We compared two methods of assembly, differing in the direction in which magnetic plates approach each other. When being moved toward each other during the assembly by Method 1, magnets first repel each other. In the case of low coercivity of the magnet material, this results in their partial demagnetization. However, by using the new Method 2, where the magnets keep attracting throughout their movement together, it is possible to eliminate partial demagnetization.
Sponsorship	IEEE Magnetics Society
Starting Page	485
Ending Page	491
Page Count	7
File Size	574336
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Assembly Magnetic separation Magnetic materials Magnetic circuits Demagnetization Permanent magnets Ceramics Magnetic fields Laboratories Circuit testing technological innovation demagnetization magnetic circuits magnetic separation permanent magnets
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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