Extrusion die and method

Details Extrusion die and method Extrusion die and method

1993-05-20

1994-05-03

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421111, 419 67, 425461, 425462, B29C 4712

Patent

active

053085680

ABSTRACT:
A method and die apparatus for manufacturing a honeycomb body of triangular cell cross-section and high cell density, the die having a combination of (i) feedholes feeding slot intersections and (ii) feedholes feeding slot segments not supplied from slot intersections, whereby a reduction in feedhole count is achieved while still retaining good extrusion efficiency and extrudate uniformity.

REFERENCES:
patent: 1874503 (1932-08-01), Greenwood
patent: 3983283 (1976-09-01), Bagley
patent: 4243370 (1981-01-01), Higuchi et al.
patent: 4731010 (1988-03-01), Cunningham
patent: 4741792 (1988-05-01), Matsuhisa et al.
patent: 4767309 (1988-08-01), Mizuno et al.
patent: 4955524 (1990-09-01), Way

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