Toho Titanium Co., Ltd.

Sanyo Special Steel Co., Ltd.

Nisshin Seifun Group Inc.

Osamu Kanou

Yoshiaki Hamada

Hideo Takatori

Akihiro Tanaka

Nobuo Fukada

Satoshi Sugawara

Hiroomi Uehara

Yoshinori Miyashita

Shigemi Fujisawa

Shigehisa Takenaka

Yoshio Nakada

Provided are a titanium-based powder excellent in fluidity and shape retention property, and an ingot and a sintered article obtained using the titanium-based powder as a material. The titanium-based powder has an average circularity of 0.815 or more and less than 0.870, a CV value of particle sizes of 22 or more and 30 or less, and an angle of repose of 29 degrees or more and 36 degrees or less.

Titanium-based powder, and ingot and sintered article thereof

Titanium alloy containing iron, that is, iron-containing titanium alloy having high strength and hardness in which iron in a composition which cannot be realized in a conventional method, is contained with no segregation, and is provided in lower cost. The &#x3b1;+&#x3b2; titanium alloy or &#x3b2; titanium alloy is produced by a forming process such as hot extrusion of titanium alloy powder containing 3 to 15 mass % of iron powder. The method for production of the &#x3b1;+&#x3b2; titanium alloy or &#x3b2; titanium alloy includes a step of mixing 3 to 15 mass % of iron powder and titanium alloy powder as the remainder, and a step of performing a forming process of hot extrusion on this powder mixture.

&#x3b1;+&#x3b2; or &#x3b2; titanium alloy and method for producing same

A powdery particle conveying system is provided in which electric power consumption can be saved when powdery particles are conveyed by use of a roots blower. In the case where the powdery particles are conveyed to a reservoir tank near the roots blower, the frequency of a power source of a roots blower driving motor is reduced, thereby reducing an output of the roots blower. In contrast, in the case where the powdery particles are conveyed to a remote reservoir tank, a voltage of a commercial frequency is applied to the motor.

Powdery particle conveying system and roots blower operating method

Growing community of inventors

Chigasaki, Japan

Osamu Kanou