Sunrex Kogyo Co., Ltd.

Ace Giken Co., Ltd.

Nanoplus Co., Ltd.

Nanopulus Co., Ltd.

Etsuo Yamamoto

Kenzo Ito

Masahiro Yamamoto

In sintering a metal powder after pressure molding into a given configuration, random amorphous flaky metal fine powders () are used as metal powder materials. In addition, spherical particulate metal powdersare used as main materials, and random amorphous flaky metal fine powdershaving finer particle size than the metal powdersand produced by fracturing a metal fracture material by means of high-velocity gas swirling flow are used as sub-materials, and molding and sintering are performed in a state of dispersing the sub-materials () in the main materials (). Thus, despite being a power metallurgical product, it is possible to obtain a metal product having a dense metallographic structure and excellent in properties such as mechanical strength.

Manufacturing method of metal product and metal product

A jet mill in which crushed material introduced into a crushing chamber is comminuted by gas being sprayed from a plurality of gas-jet nozzles, wherein high-efficiency pulverization is performed by optimizing various pulverization conditions according to the type of crushed material or other such properties. The direction in which gas is sprayed into the crushing chamber is variable adjustable; the spraying direction of each nozzle is displaced simultaneously by the electromotive actuator; swirl flow is produced in three dimensions, including the flow of a directional component that is perpendicular to the horizontal swirl flow; and a fine-powder discharge port of a first pulverization chamber and a fine powder introduction port of a second pulverization chamber are communicatingly connected by a ventilation duct.

Jet mill

A jet mill in which crushed material introduced into a crushing chamberis comminuted by gas being sprayed from a plurality of gas-jet nozzleswherein high-efficiency pulverization is performed by optimizing various pulverization conditions according to the type of crushed material or other such properties. The direction in which gas is sprayed into the crushing chamberis variably adjustable; the spraying direction of each nozzle is displaced simultaneously by the [*18] electromotive actuator; swirl flow is produced in three dimensions, including the flow of a directional component that is perpendicular to the horizontal swirl flow; and a fine-powder discharge port of a first pulverization chamber and a fine powder introduction port of a second pulverization chamber are communicatingly connected by a ventilation duct.

Growing community of inventors

Shizuoka, Japan

Etsuo Yamamoto