Heating and stratification method for an injection molding machi

Details Heating and stratification method for an injection molding machi Heating and stratification method for an injection molding machi

1977-12-01

1979-11-27

Michl, Paul R.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 75, 264 77, B29F 112

Patent

active

041761529

ABSTRACT:
An injection molding machine having a barrel and a reciprocating and rotatable screw disposed therein. A combination heat transfer and stratification device is disposed between the screw and the outlet of the barrel. The device includes a generally tubular portion having radially outwardly extending ribs. The ribs are in contact with the inner wall of the barrel. Heating means supply heat to the portion of the barrel containing the device and heat is transmitted through the rib portions. A process is disclosed whereby plastic is partially melted in the screw section and then stratified for final melting and thereby reduces mixing to provide a mottled appearance or plastic parts containing long fine filaments such as fine wires.

REFERENCES:
patent: 2740160 (1956-03-01), McKee
patent: 2919469 (1960-01-01), Wheeler
patent: 3281899 (1966-11-01), Dacco
patent: 3716612 (1973-02-01), Schrenk
patent: 4042660 (1977-08-01), Bishop

Affiliated with

Also associated with

Rating

Heating and stratification method for an injection molding machi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heating and stratification method for an injection molding machi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating and stratification method for an injection molding machi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-802934