Die for forming honeycomb structure and manufacturing method therefor
AssigneeNGK Insulators, Ltd.
InventorsKazumasa KITAMURA, Hirofumi HOSOKAWA, Tomoki NAGAE
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Abstract
Disclosed is a die for forming a honeycomb structure, including: a second plate-shaped portion that is formed of iron and the like and has back holes; and a first plate-shaped portion that is formed of tungsten carbide based cemented carbide and has cavities communicating with the back holes and slits communicating with the cavities, wherein the first plate-shaped portion has a first layer arranged in the second plate-shaped portion side and a second layer arranged on the first layer, the cavities 11 are opened on both sides of the first layer, and the slits are opened on both sides of the second layer.
Claims17
A die for forming a honeycomb structure, comprising:
- a second plate-shaped portion having back holes for introducing a forming raw material;
- and
- a first plate-shaped portion that has cavities communicating with the back holes and slits communicating with the cavities and is formed of tungsten carbide based cemented carbide,
- wherein the second plate-shaped portion is formed of a material containing at least one selected from a group consisting of iron, steel, aluminum alloy, copper alloy, titanium alloy, and nickel alloy,
- the first plate-shaped portion has a first layer arranged in the second plate-shaped portion side and a second layer arranged on the first layer,
- the cavities are opened on both sides of the first layer, and
- the slits are opened on both sides of the second layer.
A method of manufacturing a die for forming a honeycomb structure, the method comprising:
- bonding a second plate-shaped member that is formed of a material containing at least one selected from a group consisting of iron, steel, aluminum alloy, copper alloy, titanium alloy, and nickel alloy and has back holes for introducing a forming raw material and
- a first plate-shaped member having a first layer formed of tungsten carbide based cemented carbide, a second layer formed of the same tungsten carbide based cemented carbide as the tungsten carbide based cemented carbide of the first layer, cavities opened on both sides of the first layer, and slits opened on both sides of the second layer.
Dependencies are inferred from the claim text.