Method for producing a magnetizable metal shaped body
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United States of America Patent
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Sep 30, 2014
Grant Date -
Mar 10, 2011
app pub date -
Apr 27, 2009
filing date -
May 9, 2008
priority date (Note) -
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Abstract
A method for producing a magnetizable metal shaped body comprising a ferromagnetic starting material that is present in powder and in particulate form, using the following steps: (a) first compaction of the starting material (S3) such that adjoining particles become bonded to each other by means of positive adhesion and/or integral bonding in sections along the peripheral surfaces thereof and while forming hollow spaces, (b) creating an electrically isolating surface coating on the peripheral surfaces of the particles in regions outside the joining sections (S4), and (c) second compaction of the particles (S5) provided with the surface coating, such that the hollow spaces are reduced in size or eliminated.
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