Developed and manufactured by: Maruemu Works Co,. Ltd.
Low cost: The screw manufacturing cost is remarkably reduced (to 1/3).
High temperature durability: The screw is made of high alloy material and is durable against high temperature up to 900°C.
The proprietary cold pressure-forming process was used for manufacturing the screw. As a result, the cost to manufacture the screw was successfully reduced to 1/3 of the cost when compared to the conventional cutting-based manufacturing process.
The screw developed this time is useful particularly for SOFC．
The SOFC is placed in high temperature conditions at the start of its operation. For this reason, high alloy is used for the fastening screws. The high alloy is durable against high temperature.
Toward commercialization of fuel cells, there is a strong demand to lower the cost of the high alloy screws in its manufacturing stage.
Source: THE NIKKAN KOGYO SHIMBUN,LTD.