Shaped part

US8753785B2 · kind B2 · utility

Assignee

• Plansee SE · AT

Inventors

• Marco Brandner · Pfronten, DE
• Stefan Gerzoskovitz · Reutte, AT
• Wolfgang Kraussler · Murau, AT
• Alexander Leuprecht · Murau, AT
• Andreas Venskutonis · Reutte, AT

Key dates

• Filing date: Dec 15, 2010
• Grant date: Jun 17, 2014
• Expiry date: Jul 22, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A shaped part that is particularly suited as an interconnector or an end plate for a fuel cell stack, is produced by pressing and sintering a pulverulent starting material. The shaped part has a basic body with a multiplicity of knob-like and/or ridge-like elevations with a height h. Each elevation has two inclined side flanks which lead, proceeding from an end contour of the elevation, via rounded corner portions, with a radius r or r′ directly or via intermediate rectilinear portions, into curved portions, with a radius R or R′, which in turn merge into the surface contour, of the basic body. The rectilinear portions, or, in the case of a direct transition of the rounded corner portions into the curved portions, the tangents at the point of the transition, have an angle of inclination relative to the surface contour, between 95° and 135°.