On-line fluid injecting apparatus

Details On-line fluid injecting apparatus On-line fluid injecting apparatus

1977-10-03

1979-05-29

Lake, Roy

Plastic article or earthenware shaping or treating: apparatus

With foraminous or absorbent means for removal of vehicle or...

Vacuum means

264 87, 264209, 425 97, 425380, 425404, 425445, 425467, B29C 2500

Patent

active

041565878

ABSTRACT:
An apparatus is connected directly on-line with an extruder to inject fluid into or to remove fluid from a fresh extrusion on a continuous basis as the latter is extruded. In one case the fluid injected is a catalyst that causes curing of a mixing of particulate matter and resin binder. In the method one part of a two part binder mechanism is mixed with a particulate material, and the mixture is extruded on a continuous basis. The second part of the binder then is injected into the fresh extrusion on a continuous basis downstream of the extruder output to cure the extrusion. The extruder die also may include fluid injecting paths, on the one hand, for injecting lubricant or, on the other hand, for injecting of the second binder part, e.g. catalyst, into the relatively less dense material near the upstream end of the die.

REFERENCES:
patent: 1858620 (1932-05-01), Frandsen
patent: 2620515 (1952-12-01), Olson
patent: 3686070 (1972-08-01), Williams

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