Title:
BARREL FOR TWIN-SCREW KNEADING EXTRUDER
Document Type and Number:
Japanese Patent JP3474326
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the wear resistance of the inner periphery of a barrel hole, to simultaneously reduce the residual stress and assure a stress relaxation layer and to further decrease the cost by providing a wear resistant layer at the site where the wear is relatively severe.
SOLUTION: The barrel for a twin-screw kneading extruder has two barrel holes 11, 12 rotatably engaged with screws 13, 14 and formed with barrel inner surfaces at a base material, and comprises wear resistant layers 1 to 4 provided at least one of two intersections where the inner peripheries of the two holes intersect and its vicinity.
Inventors:
Naotaka Kawaguchi
Kyoichi Sasaki
Kyoichi Sasaki
Application Number:
JP21495395A
Publication Date:
December 08, 2003
Filing Date:
August 23, 1995
Export Citation:
Assignee:
Toshiba Machine Co., Ltd.
International Classes:
B29B7/38; B29B7/48; B29B7/80; B29C48/40; B29C48/41; (IPC1-7): B29C47/66; B29B7/80
Domestic Patent References:
| JP60168623A | ||||
| JP63221025A | ||||
| JP63144870A | ||||
| JP63265617A | ||||
| JP59215845A | ||||
| JP5192925A | ||||
| JP5338009A |
Attorney, Agent or Firm:
Kazuo Sato (3 others)
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