| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that when plastic deformation of a formed resin magnet is carried out in extrusion molding of a magnet piece, the formed resin magnet is broken because of brittleness and fine crack often occurs in extrusion molding and the crack often causes dispersion of magnetic characteristics or breakage. SOLUTION: In the resin magnet material for extrusion molding using a ferromagnetic material powder and a resin binder, the resin binder is obtained by adding 20-40 pts.wt. hydrogenated styrene-based thermoplastic elastomer to an ethylene ethylacrylate-based resin as a main component. The resin magnet material obtained by using the resin binder is free from lowering of magnetic flux density and prevents crack of magnet piece. COPYRIGHT: (C)2006,JPO&NCIPI
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