Die for forming honeycomb structure and manufacturing method of die for forming honeycomb structure
US7997888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1082
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A die for forming a honeycomb structure is provided with back pores through which a forming material is introduced and slits through which the forming material is extruded into a lattice-like shape, and the die comprises a first plate-like member made of a super hard alloy containing tungsten carbide and a bonding agent and provided with the back pores extending in a thickness direction; and a second plate-like member bonded to the first plate-like member, made of the super hard alloy containing tungsten carbide and the bonding agent, and provided with the slits connected to the back pores, wherein the bonding agent is dispersed in a lesser amount in a bonded part between the first plate-like member and the second plate-like member than in the other part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.