JPS6414005A - Manufacture of extrusion molded pipe - Google Patents
Manufacture of extrusion molded pipeInfo
- Publication number
- JPS6414005A JPS6414005A JP17070787A JP17070787A JPS6414005A JP S6414005 A JPS6414005 A JP S6414005A JP 17070787 A JP17070787 A JP 17070787A JP 17070787 A JP17070787 A JP 17070787A JP S6414005 A JPS6414005 A JP S6414005A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- core
- cylinder
- matrix
- molding core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
PURPOSE:To prevent deterioration in the strength of a molded pipe by molding an extruded pipe without distributing a reinforcing material unevenly by making a supporting member fixing a molding core to a molding cylinder unnecessary, by a method wherein the molding core is made movable in an extruding direction by connecting the molding core with an extruding member by interlocking with the extruding member and a molding matrix is extruded between an external circumference of the molding core and an internal circumference of an outlet of the molding cylinder. CONSTITUTION:A thick molding matrix 7 is fitted over a molding core 4 at a base end 2b side of a molding cylinder 2, an extruding member 3 is extruded toward the outlet of the molding cylinder 2 by a hydraulic cylinder 5 and the molding core 4 also moved together with the extruding member 3 in the same direction as that of the extruding member 3. The molding matrix 7 is tapered gradually at a tapered pipe 2c part, extruded through a space between an internal circumference of an outlet of the molding cylinder 2 and the external circumference of the molding core 4 and a molded pipe 8 of a desired thickness is completed. In this instance, when the molding matrix 7 is set at a temperature suitable for extrusion by a heater 6 of a molding core 4 and extrusion is continued further, as the rate of the extrusion of the molding matrix 7 is faster than that of the extruding member 3, the molded pipe 8 is pulled out of the molding core 4. The molding core 4 is moved backward, the molded pipe 8 is taken out by removing the tapered cylinder 2c, the molding matrix 7 is fitted over the molding core 4 again and the next extrusion is performed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17070787A JPS6414005A (en) | 1987-07-08 | 1987-07-08 | Manufacture of extrusion molded pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17070787A JPS6414005A (en) | 1987-07-08 | 1987-07-08 | Manufacture of extrusion molded pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6414005A true JPS6414005A (en) | 1989-01-18 |
Family
ID=15909905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17070787A Pending JPS6414005A (en) | 1987-07-08 | 1987-07-08 | Manufacture of extrusion molded pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6414005A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02239909A (en) * | 1989-03-14 | 1990-09-21 | Ngk Insulators Ltd | Extruder |
-
1987
- 1987-07-08 JP JP17070787A patent/JPS6414005A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02239909A (en) * | 1989-03-14 | 1990-09-21 | Ngk Insulators Ltd | Extruder |
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