Patent Number: 8,870,560

Title: System for producing NdFeB system sintered magnet

Abstract: A NdFeB sintered magnet production system including: a first weight unit for measuring the mold weight when the alloy powder is not yet filled; a guide attachment unit to extend the mold cavity with a guide to form a supply cavity with a predetermined volume; a powder supply unit for supplying the alloy powder into the supply cavity so that the alloy powder volume is equal to the supply cavity capacity; a filling unit for pressing the alloy powder contained in the supply cavity into the mold cavity to densify the alloy powder to the filling density; a second weight unit for measuring the mold weight after being filled with the alloy powder; and a controlling unit for computing the alloy powder weight filled into the mold cavity based on the difference between the measurement value from each of the first weight unit and the second weight unit.

Inventors: Hayashi; Shinichi (Kyoto, JP)

Assignee: Intermetallics Co., Ltd.

International Classification: B30B 11/08 (20060101); B22F 3/10 (20060101)

Expiration Date: 2018-10-28 0:00:00