JPS555861A - Method of manufacturing porous tube - Google Patents

Method of manufacturing porous tube

Info

Publication number
JPS555861A
JPS555861A JP7938578A JP7938578A JPS555861A JP S555861 A JPS555861 A JP S555861A JP 7938578 A JP7938578 A JP 7938578A JP 7938578 A JP7938578 A JP 7938578A JP S555861 A JPS555861 A JP S555861A
Authority
JP
Japan
Prior art keywords
tube
state
thermally expanded
expanded state
thermally
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
JP7938578A
Other languages
Japanese (ja)
Inventor
Satsuki Kawauchi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP7938578A priority Critical patent/JPS555861A/en
Publication of JPS555861A publication Critical patent/JPS555861A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE: To manufacture prous tubes on which continuous fine and arbitrary diameter holes are perforated at arbitrary intervals by giving them thermal shrinkage after piercing, etc. the walls of plastic tubes elongated by thermal expansion.
CONSTITUTION: To a punching machine 3 in a flatly pressed state is supplied the thermal shrinkage tube 1 which is returned to the state prior to the thermally expanded state by seheating the elongated stable state caused by thermally expanded state. Prescribed diameter holes 10 are continuously punched at a prescribed interval by a punching machine. They may be conducted by slitting instead of punching. Then the tube is sent to a heating oil tank 4, etc., shrinked thermally up to the state prior to the thermally expanded state, changed into circular tube 1' and made to pass through a cooling device 5. Thus the tube is continuously pierced 10' and becomes porous.
COPYRIGHT: (C)1980,JPO&Japio
JP7938578A 1978-06-29 1978-06-29 Method of manufacturing porous tube Pending JPS555861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7938578A JPS555861A (en) 1978-06-29 1978-06-29 Method of manufacturing porous tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7938578A JPS555861A (en) 1978-06-29 1978-06-29 Method of manufacturing porous tube

Publications (1)

Publication Number Publication Date
JPS555861A true JPS555861A (en) 1980-01-17

Family

ID=13688391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7938578A Pending JPS555861A (en) 1978-06-29 1978-06-29 Method of manufacturing porous tube

Country Status (1)

Country Link
JP (1) JPS555861A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375999A (en) * 1980-02-18 1983-03-08 Vlsi Technology Research Association Method of manufacturing a semiconductor device
WO1992000798A1 (en) * 1990-07-13 1992-01-23 Lanmark Consultants Limited Improvements in or relating to flow control
US5086924A (en) * 1985-10-08 1992-02-11 W. R. Grace & Co. - Conn. Perforated cook-in shrink bag
US5286432A (en) * 1992-03-30 1994-02-15 Robert Schmukler Fabrication of micron-range holes in protective barriers and encapsulating materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375999A (en) * 1980-02-18 1983-03-08 Vlsi Technology Research Association Method of manufacturing a semiconductor device
US5086924A (en) * 1985-10-08 1992-02-11 W. R. Grace & Co. - Conn. Perforated cook-in shrink bag
WO1992000798A1 (en) * 1990-07-13 1992-01-23 Lanmark Consultants Limited Improvements in or relating to flow control
US5286432A (en) * 1992-03-30 1994-02-15 Robert Schmukler Fabrication of micron-range holes in protective barriers and encapsulating materials

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