Plastic magnet precursor, production method for the same, and plastic magnet
First Claim
1. A plastic magnet precursor comprising a thermoplastic resin powder and at least one magnet powder, wherein said resin powder adheres around the magnet powder.
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Abstract
The present invention provides a plastic magnet precursor which can be supplied to a step of molding a plastic magnet at a constant composition without requiring a kneading step in which a resin is melted and sheared. Through injection molding using the precursor, a plastic magnet having little deterioration of magnetic properties and a small variation in quality is obtained. The plastic magnet precursor according to the present invention includes an Nd—Fe—B isotropic magnet powder (1) and a ferrite anisotropic magnet powder subjected to a coating treatment with a titanate coupling agent (4), and a thermoplastic resin powder (2) is adhered around the magnet powder (1) to form a powder shape.
6 Citations
16 Claims
- 1. A plastic magnet precursor comprising a thermoplastic resin powder and at least one magnet powder, wherein said resin powder adheres around the magnet powder.
- 2. A plastic magnet precursor comprising a thermoplastic resin powder and at least one magnet powder, wherein said magnet powder adheres around the resin powder.
Specification