Extrusion device for forming a honeycomb structure

Details Extrusion device for forming a honeycomb structure Extrusion device for forming a honeycomb structure

1980-12-10

1982-12-07

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

264177R, 2642091, 425380, 425461, 425463, 425466, 428116, B29F 304

Patent

active

043624952

ABSTRACT:
An extrusion device comprises a die provided with feed passageways and grid-shaped extrusion slots of which width is made larger in the outer peripheral portion compared with those of the central portion of the die. By the above extrusion device, a honeycomb structure having a thicker walled outer peripheral portion can be obtained without any distortion.

REFERENCES:
patent: 3790654 (1974-02-01), Bagley
patent: 3836302 (1974-09-01), Kaukeinen
patent: 3947214 (1976-03-01), Cunningham
patent: 3981657 (1976-09-01), Orso et al.
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: 4243370 (1981-01-01), Higuchi et al.
patent: 4259057 (1981-03-01), Abe et al.

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