Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1975-11-10
1978-02-21
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264 405, B29D 2304
Patent
active
040752704
ABSTRACT:
A mask or face plate, having an orifice or opening formed therethrough of desired size and configuration, is positioned against the discharge face of an extrusion die. The mask restricts the flow of extrudable material through the die so that such material will conform to the size and configuration of the opening or orifice formed through the mask. A recess formed in the face of the mask adjacent the discharge face of the extrusion die, surrounds the orifice formed therethrough, and communicates with said orifice by means of a gap formed in the inlet face of the mask between said recess and said orifice. The method of extrusion set forth with respect to the recessed or scalloped mask has particular utility when utilized with an extrusion die for forming cellular or honeycomb structures, in that the predetermined gap meters a controlled flow of additional batch material from the recess to the outer boundaries of the extruded honeycomb article passing through the orifice in said mask to encapsulate the honeycomb structure with a smooth uniform skin having improved isostatic crushing strength.
REFERENCES:
patent: 3459846 (1969-08-01), Matsui et al.
patent: 3523988 (1970-08-01), Roehr et al.
patent: 3541198 (1970-11-01), Ueda et al.
patent: 3790654 (1974-02-01), Bagley
patent: 3836302 (1974-09-01), Kaukenien
patent: 3919384 (1975-11-01), Cantaloupe et al.
Corning Glass Works
Parrish John A.
Patty, Jr. Clarence R.
Turner Burton R.
White Robert F.
LandOfFree
Extrusion die mask does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extrusion die mask, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extrusion die mask will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-126371