JPS57165118A - Manufacture of double tube coated with metal of different kind - Google Patents

Manufacture of double tube coated with metal of different kind

Info

Publication number
JPS57165118A
JPS57165118A JP5195881A JP5195881A JPS57165118A JP S57165118 A JPS57165118 A JP S57165118A JP 5195881 A JP5195881 A JP 5195881A JP 5195881 A JP5195881 A JP 5195881A JP S57165118 A JPS57165118 A JP S57165118A
Authority
JP
Japan
Prior art keywords
tube
different kind
metal
grooves
base tube
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
JP5195881A
Other languages
Japanese (ja)
Other versions
JPS6036842B2 (en
Inventor
Motoichi Asada
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.)
TSURUGA HOOMINGU KK
Original Assignee
TSURUGA HOOMINGU KK
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 TSURUGA HOOMINGU KK filed Critical TSURUGA HOOMINGU KK
Priority to JP5195881A priority Critical patent/JPS6036842B2/en
Publication of JPS57165118A publication Critical patent/JPS57165118A/en
Publication of JPS6036842B2 publication Critical patent/JPS6036842B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes

Abstract

PURPOSE:To prevent separation of a tube of different kind metal from a base tube and formation of gap by making covering of a base tube with a tube of metal of different kind by pressing a part of peripheral face of the tube of different kind metal into grooves on the base tube and making drawing at the same time. CONSTITUTION:Grooves 3- are hollowed out in longitudinal direction on the outer periphery of a base tube and a tube of different kind metal 4 is fitted on its outside. Then, it is passed through plural fin rolls 5- arranged radially. The tube of different kind metal 4 is drawn along the outer face of the base tube by pressing a part of peripheral face of the tube of different kind metal 4 into the grooves 3. The tube of different kind metal 4 is deformed to approach the square shape of the base tube 1 and brought into close contact with the base tube 1 to form a double tube 6'. Next, the double tube 6' is compressed between an upper reducing roll 7 and a lower reducing roll 8 to close left and right grooves 3, 3 and then upper and lower grooves 3, 3 are closed by compressing between left and right rolls. A square double tube in which inner and outer layers are made of different kind of metal is manufactured by the above processes.
JP5195881A 1981-04-06 1981-04-06 Manufacturing method of multilayer pipe coated with different metals Expired JPS6036842B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5195881A JPS6036842B2 (en) 1981-04-06 1981-04-06 Manufacturing method of multilayer pipe coated with different metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5195881A JPS6036842B2 (en) 1981-04-06 1981-04-06 Manufacturing method of multilayer pipe coated with different metals

Publications (2)

Publication Number Publication Date
JPS57165118A true JPS57165118A (en) 1982-10-12
JPS6036842B2 JPS6036842B2 (en) 1985-08-22

Family

ID=12901368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5195881A Expired JPS6036842B2 (en) 1981-04-06 1981-04-06 Manufacturing method of multilayer pipe coated with different metals

Country Status (1)

Country Link
JP (1) JPS6036842B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021134A (en) * 1983-07-16 1985-02-02 Nippon Piston Ring Co Ltd Production of rotor for rotary type fluid pump
JPS60190408U (en) * 1984-05-26 1985-12-17 大和スチ−ル株式会社 ribbed pipe
JPS63273514A (en) * 1987-04-28 1988-11-10 Kuroki Kogyosho:Kk Manufacture of composite member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021134A (en) * 1983-07-16 1985-02-02 Nippon Piston Ring Co Ltd Production of rotor for rotary type fluid pump
JPS60190408U (en) * 1984-05-26 1985-12-17 大和スチ−ル株式会社 ribbed pipe
JPS63273514A (en) * 1987-04-28 1988-11-10 Kuroki Kogyosho:Kk Manufacture of composite member

Also Published As

Publication number Publication date
JPS6036842B2 (en) 1985-08-22

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