JPS5769015A - Manufacture of molded pipe - Google Patents

Manufacture of molded pipe

Info

Publication number
JPS5769015A
JPS5769015A JP55146014A JP14601480A JPS5769015A JP S5769015 A JPS5769015 A JP S5769015A JP 55146014 A JP55146014 A JP 55146014A JP 14601480 A JP14601480 A JP 14601480A JP S5769015 A JPS5769015 A JP S5769015A
Authority
JP
Japan
Prior art keywords
item
laminated
mandrel
molded pipe
molded
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
JP55146014A
Other languages
Japanese (ja)
Other versions
JPS6015460B2 (en
Inventor
Naoki Hayashi
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP55146014A priority Critical patent/JPS6015460B2/en
Publication of JPS5769015A publication Critical patent/JPS5769015A/en
Publication of JPS6015460B2 publication Critical patent/JPS6015460B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE: To obtain a molded pipe without a disorderdly rolled section due to collapse under pressure, by pressing a laminated item, which has been formed by rolling a prepreg onto a mandrel, using split molds of which parting line is displaced from the axis of the item.
CONSTITUTION: The prepreg 2, which has been prepared in such a way that a thermosetting resin such as an unsaturated polyester resin, etc. is impregnated in a base such as glass roving fibers, etc., is rolled in a prescribed quantity onto the mandrel 1 to form the laminated item. Then the laminated item is inserted between the molds 3, 4 whose parting line (preferably given by the equation wherein D represents the radius of the molded item, and d represents the radius of the laminated item) is displaced from the axis of the item, and then is heated for example at 150°C under a pressure of 70atm. to be cured, the mandrel 1 is removed, and the item is machined into a molded pipe having prescribed dimensions.
COPYRIGHT: (C)1982,JPO&Japio
JP55146014A 1980-10-17 1980-10-17 Method of manufacturing formed tubes Expired JPS6015460B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146014A JPS6015460B2 (en) 1980-10-17 1980-10-17 Method of manufacturing formed tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146014A JPS6015460B2 (en) 1980-10-17 1980-10-17 Method of manufacturing formed tubes

Publications (2)

Publication Number Publication Date
JPS5769015A true JPS5769015A (en) 1982-04-27
JPS6015460B2 JPS6015460B2 (en) 1985-04-19

Family

ID=15398135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146014A Expired JPS6015460B2 (en) 1980-10-17 1980-10-17 Method of manufacturing formed tubes

Country Status (1)

Country Link
JP (1) JPS6015460B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022239869A1 (en) * 2021-05-14 2022-11-17 日本精工株式会社 Method for producing composite material molded article, method for producing retainer and rolling bearing, and method for producing gearbox constituent component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022239869A1 (en) * 2021-05-14 2022-11-17 日本精工株式会社 Method for producing composite material molded article, method for producing retainer and rolling bearing, and method for producing gearbox constituent component
JPWO2022239869A1 (en) * 2021-05-14 2022-11-17

Also Published As

Publication number Publication date
JPS6015460B2 (en) 1985-04-19

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