JPS55130323A - Cold stretch-drawing method for deformed finned steel pipe - Google Patents

Cold stretch-drawing method for deformed finned steel pipe

Info

Publication number
JPS55130323A
JPS55130323A JP3802179A JP3802179A JPS55130323A JP S55130323 A JPS55130323 A JP S55130323A JP 3802179 A JP3802179 A JP 3802179A JP 3802179 A JP3802179 A JP 3802179A JP S55130323 A JPS55130323 A JP S55130323A
Authority
JP
Japan
Prior art keywords
fin
pipe
steel pipe
pipe blank
axis
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
JP3802179A
Other languages
Japanese (ja)
Other versions
JPS6322886B2 (en
Inventor
Yoshito Nishi
Tadashi Dohara
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3802179A priority Critical patent/JPS55130323A/en
Publication of JPS55130323A publication Critical patent/JPS55130323A/en
Publication of JPS6322886B2 publication Critical patent/JPS6322886B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)

Abstract

PURPOSE: To prevent generation of the inner surface shrinkage of the pipe and the outer surface shrinkage of the fin, and to smooth the surface skin, by projecting out the middle part of the outward form line of the fin into cherson-type, at stretch- drawing the deformed finned steel pipe possessing asymmetric sectional shape.
CONSTITUTION: The stretch-drawing pipe blank P3 for manufacturing the finned steel pipe has the sectional shape which is asymmetry with respect to the X-axis and is symmetry with respect to the Y-axis; the center axis X3 of the fin of this pipe blank P3 is a little shifted to the side of X-axis similarly to the pipe blank P2. Furthermore, the outward form line of the fin is not made straight, but is made approximate chevron-type formed by suitable projecting the middle part out of both ends. Besides, the sectional area of the fin of this pipe blank P2 is made equal to the sectional area of the fin of the pipe blank P3.
COPYRIGHT: (C)1980,JPO&Japio
JP3802179A 1979-03-30 1979-03-30 Cold stretch-drawing method for deformed finned steel pipe Granted JPS55130323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3802179A JPS55130323A (en) 1979-03-30 1979-03-30 Cold stretch-drawing method for deformed finned steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3802179A JPS55130323A (en) 1979-03-30 1979-03-30 Cold stretch-drawing method for deformed finned steel pipe

Publications (2)

Publication Number Publication Date
JPS55130323A true JPS55130323A (en) 1980-10-09
JPS6322886B2 JPS6322886B2 (en) 1988-05-13

Family

ID=12513910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3802179A Granted JPS55130323A (en) 1979-03-30 1979-03-30 Cold stretch-drawing method for deformed finned steel pipe

Country Status (1)

Country Link
JP (1) JPS55130323A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691322A (en) * 1992-09-11 1994-04-05 Sanwa Kinzoku Kogyo Kk Original tube of ununiform thickness member, plug for manufacturing uniform thickness member and manufacture of ununiform thickness member
CN105107857A (en) * 2015-08-26 2015-12-02 山东建筑大学 Novel preparation method for high-strength nanocrystalline steel pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691322A (en) * 1992-09-11 1994-04-05 Sanwa Kinzoku Kogyo Kk Original tube of ununiform thickness member, plug for manufacturing uniform thickness member and manufacture of ununiform thickness member
CN105107857A (en) * 2015-08-26 2015-12-02 山东建筑大学 Novel preparation method for high-strength nanocrystalline steel pipe

Also Published As

Publication number Publication date
JPS6322886B2 (en) 1988-05-13

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