JPS5711762A - Production of composite metallic pipe - Google Patents

Production of composite metallic pipe

Info

Publication number
JPS5711762A
JPS5711762A JP8717580A JP8717580A JPS5711762A JP S5711762 A JPS5711762 A JP S5711762A JP 8717580 A JP8717580 A JP 8717580A JP 8717580 A JP8717580 A JP 8717580A JP S5711762 A JPS5711762 A JP S5711762A
Authority
JP
Japan
Prior art keywords
pipe
metallic material
coefft
linear expansion
pressure
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
JP8717580A
Other languages
Japanese (ja)
Inventor
Kimito Furuta
Kazuo Yamanaka
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP8717580A priority Critical patent/JPS5711762A/en
Publication of JPS5711762A publication Critical patent/JPS5711762A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PURPOSE: To obtain a composite metallic pipe from an outside pipe of a small coefft. of linear expansion and an inside pipe of a large coefft. of linear expansion by injecting a molten metallic material for inside pipe into the heated outside pipe, and pressing the metallic material with a press cylinder having a cylindrical part then cooling the same.
CONSTITUTION: After an outside pipe 2 is heated to a prescribed temp., molten metal 1' prepd. by melting a metallic material for an inside pipe 1 is injected therein, and these are pressed under pressure P with a press cylinder 5' having a cylindrical part 5. This cylindrical part 5 is smaller in diameter than the inside diameter of the pipe 2 and is dipped into the molten 1'. The coefft. α2 of linear expansion of the metallic material of the pipe and the coefft. α1 of linear expansion of the metallic material of the pipe 1 are set at α1>α2. The pipe 2 expands by δ under the pressure developed in the molten metal 1' by the pressure P, and balanes at a specific point. The molten metal 1' of the face in contact with the pipe 2 begins to solidify and balances. After the pressure P is released, the central part of the pipe 1 is machined, whereby the cmposite metallic pipe is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP8717580A 1980-06-26 1980-06-26 Production of composite metallic pipe Pending JPS5711762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8717580A JPS5711762A (en) 1980-06-26 1980-06-26 Production of composite metallic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8717580A JPS5711762A (en) 1980-06-26 1980-06-26 Production of composite metallic pipe

Publications (1)

Publication Number Publication Date
JPS5711762A true JPS5711762A (en) 1982-01-21

Family

ID=13907643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8717580A Pending JPS5711762A (en) 1980-06-26 1980-06-26 Production of composite metallic pipe

Country Status (1)

Country Link
JP (1) JPS5711762A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257756A (en) * 1985-09-05 1987-03-13 Kawasaki Heavy Ind Ltd Production of cylinder for injection molding machine
US5121786A (en) * 1984-11-09 1992-06-16 Honda Giken Kogyo Kabushiki Kaisha Process for manufacturing siamese-type cylinder block

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121786A (en) * 1984-11-09 1992-06-16 Honda Giken Kogyo Kabushiki Kaisha Process for manufacturing siamese-type cylinder block
JPS6257756A (en) * 1985-09-05 1987-03-13 Kawasaki Heavy Ind Ltd Production of cylinder for injection molding machine

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