Extrusion device for producing honeycomb structures

Details Extrusion device for producing honeycomb structures Extrusion device for producing honeycomb structures

1981-01-02

1982-09-14

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

264177R, 425380, 425465, 425467, B29F 304, B29D 704

Patent

active

043493297

ABSTRACT:
An extrusion device comprises a die provided with disconnected feed passageways and interconnected grid-shaped extrusion slots and a die mask which covers the outer peripheral portion of the die on the extrudable material outlet side through a pooling zone. The width of the uncovered grid shaped extrusion slots along the die mask is made larger on the extrudable material outlet side compared with that on the extrudable material inlet side. The extrudable material is supplied from the covered extrusion slots into the uncovered extrusion slots through the pooling zone.

REFERENCES:
patent: 3905743 (1975-09-01), Bagley
patent: 3919384 (1975-11-01), Cantaloupe et al.
patent: 3947214 (1976-03-01), Cunningham
patent: 3983283 (1976-09-01), Bagley
patent: 4008033 (1977-02-01), Folmar et al.
patent: 4168944 (1979-09-01), Morikawa et al.
patent: 4178145 (1979-12-01), Hamamoto et al.
patent: 4233351 (1980-11-01), Okumura et al.
patent: 4278412 (1981-07-01), Ozaki et al.

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