Invention Grant
- Patent Title: Honeycomb extrusion dies and forming methods
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Application No.: US17058397Application Date: 2019-05-30
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Publication No.: US11752679B2Publication Date: 2023-09-12
- Inventor: Thomas William Brew , Yuehao Li , Min Shen
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Joseph M. Homa
- International Application: PCT/US2019/034553 2019.05.30
- International Announcement: WO2019/232150A 2019.12.05
- Date entered country: 2020-11-24
- Main IPC: B29C48/11
- IPC: B29C48/11 ; B28B3/26 ; B29C48/30 ; B23P15/24 ; B29L31/60

Abstract:
A honeycomb extrusion die (120) includes a die body (302) including an inlet face (306) and an exit face. The die body (302) has slot inlets (309) and a plurality of pins (320, 500) disposed between the slot inlets (309) and the exit face. The plurality of pins (320, 500) include side surfaces (322, 500B) configured to define a matrix of intersecting slots (324), wherein the matrix of intersecting slots (324) has slot exit (509) widths at the exit face. Divots (526) extend into a plurality of the side surfaces (322, 500B) between the slot inlets (309) and the exit face. Each individual divot (526) has a divot depth (D55) extending into a side surface (500A, 500B, 502A, 502B) of the side surfaces (322, 500B). A ratio between a slot exit width (W53) W53 of an individual slot (324) and the divot depth (D55) of an individual divot (526) extending into a side surface (500A, 500B, 502A, 502B) of the individual slot (324) is greater than 1.2. Methods of forming honeycomb bodies with honeycomb structures are provided, as are other aspects.
Public/Granted literature
- US20210308928A1 HONEYCOMB EXTRUSION DIES AND FORMING METHODS Public/Granted day:2021-10-07
Information query
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