Other

Ntn Corporation

Ryuichi Sakamoto

Takeshi Yamaguchi

Mitsuo Kawamura

Toshiyuki Tange

Takahiro Okuno

Eiichiro Shimazu

Yasutake Hayakawa

Tadayoshi Tukeda

Junichi Ooshimo

Hidenori Takayasu

Keiji Gohonjo

A cage is made of a magnesium alloy such as AZ91D, and is molded by means of injection molding. In this cage, a confluence region is brought away to outside the cage during the injection molding. The confluence region is a region including a void formed by merging of flows of the magnesium alloy. When observing a cross sectional surface of the cage, a ratio of an &#x3b1; phase having a grain size of 20 &#x3bc;m or greater is less than 15% in the magnesium alloy constituting the cage.

Cage and rolling bearing

A method of coating a powder lubricant in a metallic injection molding machine having a die composed of a stationary die ( ) and a movable die ( ), a sprue hole ( ), runner groove ( ), gate hole ( ) and cavity ( ) being formed on parting faces (P) of these dies ( ), a cold plug catcher ( ) communicating with the sprue hole ( ) when the movable die ( ) is fastened to the stationary die ( ) being formed in the movable die, the method of coating a powder lubricant in a metallic injection molding machine comprising the step of coating the powder lubricant from the cold plug catcher ( ) toward the cavity ( ) by decompressing the inside of the sprue hole, runner groove, gate hole and cavity from the cavity side.

Method of coating powder lubricant in metallic injection molding machine and die used of metallic injection molding

Growing community of inventors

Hiroshima, Japan

Ryuichi Sakamoto