JPS56151535A - Tubular body made of material principally consisting of fluorine plastic - Google Patents

Tubular body made of material principally consisting of fluorine plastic

Info

Publication number
JPS56151535A
JPS56151535A JP5643080A JP5643080A JPS56151535A JP S56151535 A JPS56151535 A JP S56151535A JP 5643080 A JP5643080 A JP 5643080A JP 5643080 A JP5643080 A JP 5643080A JP S56151535 A JPS56151535 A JP S56151535A
Authority
JP
Japan
Prior art keywords
tubular body
section
outer periphery
principally consisting
wall
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
JP5643080A
Other languages
Japanese (ja)
Inventor
Akira Washida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5643080A priority Critical patent/JPS56151535A/en
Publication of JPS56151535A publication Critical patent/JPS56151535A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To obtain the uniform and very strong tubular body without any bubble, crack or defect by a method wherein the material principally consisting of fluorine plastics and calcined into the thick-wall tubular body is inserted forcibly into a narrow section with a strong force to form a thin-wall tubular body under compressing it.
CONSTITUTION: A rod body 2 is provided at the center of the tubular body 1 while a section 3, in which a radial distance H between the inner periphery of this tubular body 1 and the outer periphery of the rod body 2 is bigger, and a section 4, in which the same distance H is smaller, are provided. The section 3 and the section 4 are connected by a smoothly inclined slope. The calcined tubular material 7 principally consisting of fluorine plastics is fitted into the section 3. The outer periphery of the material 7 is contacted closely with the inner periphery of the tubular body 1 while the inner periphery thereof is colsely contacted with the outer periphery of the rod body 2. When the upper end of this material 7 is pushed strongly by a piston 9, the material 7 is extruded to the section 4 after the thickness of the wall thereof is reduced under being collapsed and the tubular body P may be manufactured.
COPYRIGHT: (C)1981,JPO&Japio
JP5643080A 1980-04-28 1980-04-28 Tubular body made of material principally consisting of fluorine plastic Pending JPS56151535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5643080A JPS56151535A (en) 1980-04-28 1980-04-28 Tubular body made of material principally consisting of fluorine plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5643080A JPS56151535A (en) 1980-04-28 1980-04-28 Tubular body made of material principally consisting of fluorine plastic

Publications (1)

Publication Number Publication Date
JPS56151535A true JPS56151535A (en) 1981-11-24

Family

ID=13026866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5643080A Pending JPS56151535A (en) 1980-04-28 1980-04-28 Tubular body made of material principally consisting of fluorine plastic

Country Status (1)

Country Link
JP (1) JPS56151535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876051A (en) * 1986-11-13 1989-10-24 W. L. Gore & Associates, Inc. Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby
WO1995024304A1 (en) * 1994-03-10 1995-09-14 Meadox Medicals, Inc. Method for manufacturing expanded polytetrafluoroethylene products

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876051A (en) * 1986-11-13 1989-10-24 W. L. Gore & Associates, Inc. Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby
WO1995024304A1 (en) * 1994-03-10 1995-09-14 Meadox Medicals, Inc. Method for manufacturing expanded polytetrafluoroethylene products
US5505887A (en) * 1994-03-10 1996-04-09 Meadox Medicals, Inc. Extrusion process for manufacturing PTFE products

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