Method and apparatus for making compressed composite bodies of p

Details Method and apparatus for making compressed composite bodies of p Method and apparatus for making compressed composite bodies of p

1980-08-07

1982-11-09

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Orienting or aligning solid particles in fluent matrix material

264113, 264120, 264126, 264320, 264323, 425145, 425325, 425376R, 425379R, 425381, 425466, B29J 500, B29F 3014, B29G 200

Patent

active

043584187

ABSTRACT:
A method of and apparatus for the cold extrusion of a mixture of plant particles and a binder, especially for the production of load-bearing beams and similar shaped bodies in which the plant particles are wood chips or the like, utilizes a plunger, ram or piston for displacement of the mixture into the extrusion passages (in which hardening can occur) under conditions such that the material flows during compaction and is compressed with a densification ratio of 2:1 to 4:1 (preferably 3:1), a plunger stroke of 400 to 800 mm (preferably 600 mm) and a velocity of the plunger between 0.04 and 1.5 meters per second (preferably 0.06 meters per second).

REFERENCES:
patent: 2227461 (1941-01-01), Morin et al.
patent: 3578523 (1971-05-01), Ohse
patent: 3989433 (1976-11-01), Furman
patent: 4124347 (1978-11-01), Miller

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