Honeycomb segment-forming die and method for manufacturing honeycomb structure
US8128395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A honeycomb segment-forming die includes: an introducing portion provided on an introduction face side and having a plurality of back holes, and a forming portion provided on an formation face side and having slits communicating with the back holes. The forming portion has a polygonal outer peripheral shape and forms a prismatic honeycomb segment by passing kneaded clay for forming which is introduced from the back holes of the introducing portion through the slits of the forming portion, and a gap between slits formed in each of corner portions including a vertex of the polygonal forming portion is larger than a gap of slits formed in the central portion of the forming portion. This enables to form a honeycomb segment having high compressive strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.