Honeycomb forming die
US7311510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Mar 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a die (10) for forming a honeycomb body having a structure provided with groovy slits (2) on a front face thereof, the slits being formed by cell blocks (3) and back holes (4) on a back surface thereof, each hole being communicatively connected with the slit. The number N of the cell blocks per one side of the die is even number. According to the die for forming the honeycomb body, strain generated on an extruded face of the honeycomb body after extrusion and bending of the honeycomb body can be reduced as well as the die can maintain a stable frictional force of extrusion and is excellent in extrudability and wear resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.