JPS56136327A - Molding bent tube of reinforced plastic - Google Patents

Molding bent tube of reinforced plastic

Info

Publication number
JPS56136327A
JPS56136327A JP4086480A JP4086480A JPS56136327A JP S56136327 A JPS56136327 A JP S56136327A JP 4086480 A JP4086480 A JP 4086480A JP 4086480 A JP4086480 A JP 4086480A JP S56136327 A JPS56136327 A JP S56136327A
Authority
JP
Japan
Prior art keywords
cylindrical body
mandrel
bent
tube
reinforcing material
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.)
Granted
Application number
JP4086480A
Other languages
Japanese (ja)
Other versions
JPS6159227B2 (en
Inventor
Hisao Morimoto
Toshiaki Shirakawa
Toshimi Inai
Hiroshi Ishida
Takashi Shimizu
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP4086480A priority Critical patent/JPS56136327A/en
Publication of JPS56136327A publication Critical patent/JPS56136327A/en
Publication of JPS6159227B2 publication Critical patent/JPS6159227B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: To obtain the titled tube in the shape of a smoothly bent cylinder with a uniform wall thickness and excellent in strength and other properties by a method wherein an uncured straight tube is formed, then the resultant cylindrical body is provided with cut grooves and is bent into an arched shape.
CONSTITUTION: A tape of paper 1 is spirally wound around a mandrel 1 provided with a cutting edge 3 projecting on the peripheral surface on the side of the tip end thereof, to obtain the cylindrical body 8. Then, a releasing film 9, a tape-shaped body 10 for protecting the inside surface of a reinforcing material layer, and a curable resin impregnated reinforcing material 11 are sequentially wound around the cylindrical body 8 to form the uncured tube 12. After producing the cut grooves 13 in the cylindrical body 8 while pushing out the uncured tube 12 from the tip end of the mandrel 1, and body 8 is cut up into segments of a predetermined length, the segment is fitted onto a mandrel 14 bent in an arched shape and is cured in a curing furnace. Due to the presence of the cut grooves 13, the cylindrical body 8 can be bent smoothly into the arched shape of the mandrel 14 while maintaining the uniform wall thickness, without ruggedness of the layer of the reinforcing material 11.
COPYRIGHT: (C)1981,JPO&Japio
JP4086480A 1980-03-28 1980-03-28 Molding bent tube of reinforced plastic Granted JPS56136327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4086480A JPS56136327A (en) 1980-03-28 1980-03-28 Molding bent tube of reinforced plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4086480A JPS56136327A (en) 1980-03-28 1980-03-28 Molding bent tube of reinforced plastic

Publications (2)

Publication Number Publication Date
JPS56136327A true JPS56136327A (en) 1981-10-24
JPS6159227B2 JPS6159227B2 (en) 1986-12-15

Family

ID=12592385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4086480A Granted JPS56136327A (en) 1980-03-28 1980-03-28 Molding bent tube of reinforced plastic

Country Status (1)

Country Link
JP (1) JPS56136327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987130A (en) * 1982-11-12 1984-05-19 Nippon Sheet Glass Co Ltd Manufacture of glass-wool cylinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349074A (en) * 1976-09-24 1978-05-04 United Patents Trust Reg Method of bending plastic sheet and product formed using same
JPS54173072U (en) * 1978-05-26 1979-12-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349074A (en) * 1976-09-24 1978-05-04 United Patents Trust Reg Method of bending plastic sheet and product formed using same
JPS54173072U (en) * 1978-05-26 1979-12-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987130A (en) * 1982-11-12 1984-05-19 Nippon Sheet Glass Co Ltd Manufacture of glass-wool cylinder
JPS6356056B2 (en) * 1982-11-12 1988-11-07 Nippon Sheet Glass Co Ltd

Also Published As

Publication number Publication date
JPS6159227B2 (en) 1986-12-15

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