| abstract |
(57) Abstract: A resin-bonded metal composition which provides a resin-bonded magnet having excellent magnetic properties and a resin-bonded yoke material having excellent magnetic permeability. A resin-bonded metal composition comprising a metal powder and a polyamide resin, wherein the polyamide resin has a terminal amino group concentration of 0 to 20 mmol / kg, a molecular weight distribution of 2.8 to 10, and a number average molecular weight. Is 5000-15000 The resin having a terminal amino group concentration of 0 to 20 mmol / kg, a resin having a number average molecular weight of 15,000 to 30,000, and 5 to 50% by weight of a resin-bonded metal composition. A metal molded product obtained by injection molding or extrusion molding of the resin-bonded metal composition. |