Method of compression molding synthetic resin

Details Method of compression molding synthetic resin Method of compression molding synthetic resin

1988-10-31

1990-04-03

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

425398, B29C 4304, B29C 4314

Patent

active

049138715

ABSTRACT:
A method of compression molding of a synthetic resin material in the heat-melted state by the cooperative action of a male mold assembly and a female mold assembly. The female mold assembly includes an outside member having a central opening and an inside member movable relative to the outside member through the central opening. A pre-mold-closing step of moving the outside member to a predetermined closed position is carried out, and thereafter, a compression molding step of moving the inside member to a predetermined closed position and compressing the synthetic resin material is carried out. Also provided is a synthetic resin feeding apparatus including an extruder having an extrusion plate with an extrusion opening formed therein and a cutting tool for cutting the synthetic resin in the heat-melted state extruded from the extrusion opening. A tapered portion is formed in the extrusion plate, and the extrusion opening is opened to the front end surface of the tapered portion.

REFERENCES:
patent: 3405214 (1968-10-01), Butts
patent: 3511845 (1970-05-01), Scalora
patent: 3947204 (1987-03-01), Ayres et al.
patent: 4330256 (1982-05-01), Reichenbach
patent: 4489031 (1984-12-01), Ogihara

Affiliated with

Also associated with

Rating

Method of compression molding synthetic resin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of compression molding synthetic resin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of compression molding synthetic resin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1356239