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US 10,833,336 B2Granted
Manufacturing method of separator for fuel cell
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHideaki Tanaka
Life of this patent
Estimating the term…
Abstract
A manufacturing method of a separator for a fuel cell, includes: setting a metal plate and first and second electro-conductive resin sheets between first and second dies; and forming a flow channel in the metal plate and the first and second electro-conductive resin sheets by hot pressing with the first and second dies.
Claims8
A manufacturing method of a separator for a fuel cell, comprising:
- setting a metal plate and first and second electro-conductive resin sheets between first and second dies such that the first electro-conductive resin sheet is set between the first die and the metal plate, that the second electro-conductive resin sheet is set between the second die and the metal plate, and that the metal plate having a plate shape is set between the first and second electro-conductive resin sheets, the first die including:
- a first convex surface and a first concave surface;
- and a first side surface connected between the first convex surface and the first concave surface, the second die including:
- a second concave surface and a second convex surface respectively facing the first convex surface and the first concave surface;
- and a second side surface facing the first side surface and connected between the second concave surface and the second convex surface;
- and
- forming a flow channel in the metal plate and the first and second electro-conductive resin sheets by hot pressing with the first and second dies,
- wherein a first protruding portion protruding from the first side surface is formed on the first side surface and away from the first concave surface,
- wherein a plurality of protruding portions are formed on the first side surface, and
- wherein the plurality of protruding portions are formed at predetermined intervals in a length direction of the first die that is perpendicular to a direction in which the first convex surface and the first concave surface are arranged.
7 more elements
A manufacturing method of a separator for a fuel cell, comprising:
- setting a metal plate and first and second electro-conductive resin sheets between first and second dies such that the first electro-conductive resin sheet is set between the first die and the metal plate, that the second electro-conductive resin sheet is set between the second die and the metal plate, and that the metal plate having a plate shape is set between the first and second electro-conductive resin sheets, the first die including:
- a first convex surface and a first concave surface;
- and a first side surface connected between the first convex surface and the first concave surface, the second die including:
- a second concave surface and a second convex surface respectively facing the first convex surface and the first concave surface;
- and a second side surface facing the first side surface and connected between the second concave surface and the second convex surface;
- and
- forming a flow channel in the metal plate and the first and second electro-conductive resin sheets by hot pressing with the first and second dies,
- wherein a first protruding portion protruding from the first side surface is formed on the first side surface and away from the first concave surface,
- wherein a plurality of protruding portions are formed on the second side surface, and
- wherein the plurality of protruding portions are formed at predetermined intervals in a length direction of the second die that is perpendicular to a direction in which the second convex surface and the second concave surface are arranged.
7 more elements
Dependencies are inferred from the claim text.