JPS55130343A - Induction heating type elbow joint working device - Google Patents

Induction heating type elbow joint working device

Info

Publication number
JPS55130343A
JPS55130343A JP3823579A JP3823579A JPS55130343A JP S55130343 A JPS55130343 A JP S55130343A JP 3823579 A JP3823579 A JP 3823579A JP 3823579 A JP3823579 A JP 3823579A JP S55130343 A JPS55130343 A JP S55130343A
Authority
JP
Japan
Prior art keywords
coils
mandrel
heating
elbow joint
coil
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
JP3823579A
Other languages
Japanese (ja)
Other versions
JPS6012142B2 (en
Inventor
Iwao Kageyoshi
Wahei Morooka
Susumu Saito
Hisao Sasaki
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.)
Meidensha Electric Manufacturing Co Ltd
Nippon Steel Corp
Benkan Kikoh Corp
Original Assignee
Meidensha Electric Manufacturing Co Ltd
Sumitomo Metal Industries Ltd
Sumikin Kikoh 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 Meidensha Electric Manufacturing Co Ltd, Sumitomo Metal Industries Ltd, Sumikin Kikoh Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP3823579A priority Critical patent/JPS6012142B2/en
Publication of JPS55130343A publication Critical patent/JPS55130343A/en
Publication of JPS6012142B2 publication Critical patent/JPS6012142B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE: To enable the elbow joint free from uneven heating, undesired deformations, cracks, etc. to be manufactured by performing induction heating with coils in place of burners in the mandrel bending system of combustion furnaces.
CONSTITUTION: A mandrel 2 whose diameter gradually increases and which is curving downward is mounted to the end of a work guide bar 1. Respectively spare, expanding and curving heating coils 3, 4, 5 are disposed to the outside circumferences of the portion 1a, expanding part 2a, and curving part 2b of the guide bar close thereto. An annular spacing S through which the cylindrical work W can pass is provided between the guide bar 1 and coil 3 and between the mandrel 2 and coils 4, 5. The end of the mandrel assumes the trimmed part 2c protruding from the coil 5. Electric powers are controllably supplied from respectively separate high frequency power sources to the coils 3W5 and the work W is fed to the heating parts composed of the respective coils subsequently by a press or the like. The heating temperatures are made approximately equal in the regions of the coils 3, 5 and higher in the region of the coil 4. The elbow joint formed is pushed out downward.
COPYRIGHT: (C)1980,JPO&Japio
JP3823579A 1979-03-30 1979-03-30 Induction heating elbow joint processing equipment Expired JPS6012142B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3823579A JPS6012142B2 (en) 1979-03-30 1979-03-30 Induction heating elbow joint processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3823579A JPS6012142B2 (en) 1979-03-30 1979-03-30 Induction heating elbow joint processing equipment

Publications (2)

Publication Number Publication Date
JPS55130343A true JPS55130343A (en) 1980-10-09
JPS6012142B2 JPS6012142B2 (en) 1985-03-30

Family

ID=12519629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3823579A Expired JPS6012142B2 (en) 1979-03-30 1979-03-30 Induction heating elbow joint processing equipment

Country Status (1)

Country Link
JP (1) JPS6012142B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635132U (en) * 1992-10-13 1994-05-10 東洋製罐株式会社 Plastic handle bottle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635132U (en) * 1992-10-13 1994-05-10 東洋製罐株式会社 Plastic handle bottle

Also Published As

Publication number Publication date
JPS6012142B2 (en) 1985-03-30

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