JPS6414005A - Manufacture of extrusion molded pipe - Google Patents

Manufacture of extrusion molded pipe

Info

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
Application number
JP17070787A
Other languages
Japanese (ja)
Inventor
Kimio Takeshita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP17070787A priority Critical patent/JPS6414005A/en
Publication of JPS6414005A publication Critical patent/JPS6414005A/en
Pending legal-status Critical Current

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.
JP17070787A 1987-07-08 1987-07-08 Manufacture of extrusion molded pipe Pending JPS6414005A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02239909A (en) * 1989-03-14 1990-09-21 Ngk Insulators Ltd Extruder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02239909A (en) * 1989-03-14 1990-09-21 Ngk Insulators Ltd Extruder

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