Mitsubishi Power, Ltd.

O & K Company Ltd.

Tetsuya Tsukamoto

Ryota Takahashi

Taichi Nakamura

Issaku Fujita

Yasuaki Shimohara

Problems addressed by the present invention are to provide a lubricant composition that is capable of being used as an alternative to chemical conversion treatment by means of phosphate, to provide a lubricant composition having practical stable lubricative performance without the need for additional unwanted operations, and to provide a method for using this to form a lubrication coating, and a metal workpiece at which a lubrication coating is formed on a surface thereof. Provided as a means for solving such problems is a lubricant composition for causing formation of a hemimorphite-containing lubrication coating that contains a silicate compound (e.g., colloidal silica) and water-soluble zinc in solution.

Lubricant composition for forming hemimorphite-containing lubrication coating, method for forming said lubrication coating on surface of metal workpiece, and metal workpiece comprising said lubrication coating

The present invention comprises: a cylindrical pipe () that has a cylindrical shape about an axis (O) extending in the horizontal direction and has a space internally extending in the direction of the axis (O); steam inlets () which are provided at the bottom of the cylindrical pipe () and through which steam is introduced; a steam outlet () that is opened from an end of the cylindrical pipe () in the axis (O) direction toward the axis (O) direction for exhausting steam from the cylindrical pipe (); and a moisture separation element () that is provided in the cylindrical pipe () between the steam inlets () and the steam outlet () and has a plurality of vanes for separating moisture from steam by passing the steam through the vanes.

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Yokohama, Japan

Tetsuya Tsukamoto