JPS579541A - Pipe expander - Google Patents

Pipe expander

Info

Publication number
JPS579541A
JPS579541A JP8252280A JP8252280A JPS579541A JP S579541 A JPS579541 A JP S579541A JP 8252280 A JP8252280 A JP 8252280A JP 8252280 A JP8252280 A JP 8252280A JP S579541 A JPS579541 A JP S579541A
Authority
JP
Japan
Prior art keywords
dies
pipe
male
rotating
projection
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
JP8252280A
Other languages
Japanese (ja)
Inventor
Suetomi Inoue
Tetsuo Murayama
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP8252280A priority Critical patent/JPS579541A/en
Publication of JPS579541A publication Critical patent/JPS579541A/en
Pending legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To uniformly distribute the strains in the circumferential direction of a pipe over the entire section of the pipe by providing a spiral mating groove on the contact surface of a circular conical working head which is slided and press-fitted into male dies mounted to a pipe expanding part, press-fitting the working head into the male dies and rotating the male die in one direction.
CONSTITUTION: Male dies 13 are set by being contracted with a spring 14 in contact with the nut 12 of a guide rod 10, and a pipe 30 is loaded into the dies 13. The right end of the pipe 30 is aligned to the projection 16 of the dies 13 and the upper half 17U of female dies is put on and is locked by means of bolts 19 in a manner as to prevent the pipe 30 from rotating. Pressurized oil is fed to a hydraulic cylinder 4 to slide a ram 7 leftward, thereby loading a circular conical working head 8 into the internal space 15 of the dies 13. At this time, the groove 9 on the outside surfce of the head 8 and the projection 13R on the inside surface of the male dies are fitted. Further, when the pressurized oil is fed and the head 8 is slided leftward, the dies 13 radially expand while rotating in the spiral direction of the inside surface projection 13R. The pipe 30 receives the pressure from the dies 13 and forms an expanded shape.
COPYRIGHT: (C)1982,JPO&Japio
JP8252280A 1980-06-18 1980-06-18 Pipe expander Pending JPS579541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8252280A JPS579541A (en) 1980-06-18 1980-06-18 Pipe expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8252280A JPS579541A (en) 1980-06-18 1980-06-18 Pipe expander

Publications (1)

Publication Number Publication Date
JPS579541A true JPS579541A (en) 1982-01-19

Family

ID=13776856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8252280A Pending JPS579541A (en) 1980-06-18 1980-06-18 Pipe expander

Country Status (1)

Country Link
JP (1) JPS579541A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628602A (en) * 1996-01-18 1997-05-13 Kyo-Ei Sangyo Kabushiki Kaisha Anti-theft hub nut for vehicle wheels
EP1938950A1 (en) 2006-12-28 2008-07-02 Virax, SAS Bulging die device for clips on a machine for making sockets on the ends of pipes made from plastic or composite material.
US7800224B2 (en) 2006-12-29 2010-09-21 Fairchild Korea Semiconductor, Ltd. Power device package
US20100308503A1 (en) * 2007-06-25 2010-12-09 Uponor Innovation Ab Method and tool for expanding a pipe end

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628602A (en) * 1996-01-18 1997-05-13 Kyo-Ei Sangyo Kabushiki Kaisha Anti-theft hub nut for vehicle wheels
EP2258537A1 (en) 2006-12-28 2010-12-08 Virax, SAS Bulging die device for clips on a machine for making sockets on the ends of pipes made from plastic or composite material.
FR2910828A1 (en) * 2006-12-28 2008-07-04 Virax Soc Par Actions Simplifi EXPANSION TOOL DEVICE FOR MACHINE PLIERS TO MAKE PLUGS IN PLASTIC OR COMPOSITE PIPES
EP2226182A2 (en) 2006-12-28 2010-09-08 Virax, SAS Method for expanding one end of a pipe made from plastic or composite material using a bulging die device for clips or a machine for making sockets on the ends of pipes made from plastic or composite material, and bulging die device for implementation thereof
EP2226182A3 (en) * 2006-12-28 2010-10-13 Virax, SAS Method for expanding one end of a pipe made from plastic or composite material using a bulging die device for clips or a machine for making sockets on the ends of pipes made from plastic or composite material, and bulging die device for implementation thereof
EP1938950A1 (en) 2006-12-28 2008-07-02 Virax, SAS Bulging die device for clips on a machine for making sockets on the ends of pipes made from plastic or composite material.
US7922475B2 (en) * 2006-12-28 2011-04-12 Virax, Société par actions simplifiée Expansion tool device for pliers or machine for producing sockets at the ends of pipes made out of plastic or composite material
EP2332716A2 (en) 2006-12-28 2011-06-15 Virax, SAS Bulging die device for clips on a machine for making sockets on the ends of pipes made from plastic or composite material
EP2332716A3 (en) * 2006-12-28 2011-07-27 Virax, SAS Bulging die device for clips on a machine for making sockets on the ends of pipes made from plastic or composite material
US8303295B2 (en) 2006-12-28 2012-11-06 Virax, Societe Par Actions Simplifiee Expansion tool device for pliers or machine for producing sockets at the ends of pipes made out of plastic or composite material
US7800224B2 (en) 2006-12-29 2010-09-21 Fairchild Korea Semiconductor, Ltd. Power device package
US20100308503A1 (en) * 2007-06-25 2010-12-09 Uponor Innovation Ab Method and tool for expanding a pipe end
US8562331B2 (en) * 2007-06-25 2013-10-22 Uponor Innovation Ab Method and tool for expanding a pipe end
EP2167255B2 (en) † 2007-06-25 2023-08-30 Uponor Innovation AB Method and tool for expanding a pipe end

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