Variable section extrusion die set and variable extrusion molding method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1998
Grant Date -
N/A
app pub date -
Aug 23, 1996
filing date -
Jan 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A molded product with a variable cross sectional configuration in the longitudinal direction is subjected to extrusion molding by using a die set for extruding a molding with a variable section in a longitudinal direction, the die set comprising a first die 10 and a second die 11, the first die 10 and the second die 11 being relatively movably disposed along the web shaping-holes 16 and 28 and arranged in order in the extruding direction of a molding material such that a first extrusion hole 14 and a second extrusion hole 30 have web shaping-holes 16 and 28 communicated with each other and a flange portion shaping-hole 15 (27) of one of the dies is situated on the side of a flange portion communication hole 29 (17) of the other die, and relatively moving the first die 10 and the second die 11 while extruding the molding material towards the variable section extrusion die set.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully