Invention Grant
- Patent Title: Honeycomb extrusion dies and forming methods
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Application No.: US17608765Application Date: 2020-05-13
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Publication No.: US12109727B2Publication Date: 2024-10-08
- Inventor: Thomas William Brew , Thomas Mark Dubots , Kenneth Charles Sariego , Min Shen
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Kevin M. Able
- International Application: PCT/US2020/032611 2020.05.13
- International Announcement: WO2020/236474A 2020.11.26
- Date entered country: 2021-11-04
- Main IPC: B28B3/26
- IPC: B28B3/26

Abstract:
A honeycomb extrusion die (120) includes a die body (342) including an inlet face (315) and an outlet face (341). A plurality of pins (330) extend from the die body (342), wherein the pins (330) are arranged to define primary (312P) and secondary slots (312S). Primary slots (312P) include primary slot inlets (320P) and primary slot outlets (3120) and the secondary slots (312S) include secondary slot inlets (312SI) and secondary slot outlets (312SO). Feedholes (317) extend within the die body (342), the feedholes (317) including feedhole outlets (319), wherein the feedhole outlets (319) intersect only with the primary slot inlets (320P). First surface indentation features (345) extend into side surfaces (332) of the plurality of pins (330) defining the primary slots (312P). The first surface indentation features (345) are spaced from the primary slot outlets (3120). The secondary slots (312S) are devoid of surface indentation features. Other die bodies, extruders, and methods are disclosed.
Public/Granted literature
- US20220314489A1 HONEYCOMB EXTRUSION DIES AND FORMING METHODS Public/Granted day:2022-10-06
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