JPS5973113A - Manufacture of drawn pipe - Google Patents

Manufacture of drawn pipe

Info

Publication number
JPS5973113A
JPS5973113A JP18264082A JP18264082A JPS5973113A JP S5973113 A JPS5973113 A JP S5973113A JP 18264082 A JP18264082 A JP 18264082A JP 18264082 A JP18264082 A JP 18264082A JP S5973113 A JPS5973113 A JP S5973113A
Authority
JP
Japan
Prior art keywords
diam
die
bearing
plug
pipe
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
JP18264082A
Other languages
Japanese (ja)
Other versions
JPH0244603B2 (en
Inventor
Kan Sunaga
Toshio Sakurai
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.)
Sanwa Kousan Co Ltd
Sanwa Kokan Co Ltd
Original Assignee
Sanwa Kousan Co Ltd
Sanwa Kokan 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 Sanwa Kousan Co Ltd, Sanwa Kokan Co Ltd filed Critical Sanwa Kousan Co Ltd
Priority to JP57182640A priority Critical patent/JPH0244603B2/ja
Publication of JPS5973113A publication Critical patent/JPS5973113A/en
Publication of JPH0244603B2 publication Critical patent/JPH0244603B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/16Making tubes with varying diameter in longitudinal direction

Abstract

PURPOSE:To manufacture accurately a pipe having thick wall and plural large diameters, by providing respectively plural bearing parts to a die and a plug, and drawing a blank pipe while press-holding always the pipe between the bearing surfaces of the die and the plug. CONSTITUTION:In a case of using a die 2 and a plug 4 having two bearing parts respectively, a pipe having outer diam. d2 and inner diam. d3 is firstly formed at the position where the surface of bearing diam. d2 of the die 2 and the surface of bearing diam. d3 of the plug 4 are faced to each other. Next, a pipe having outer diam. d2 and inner diam. d4 is formed at the position where the surface of bearing diam. d2 of the die 2 and the surface of bearing diam. d4 of the plug 4 are faced to each other, after fixing the die 2 and shifting the plug 4 from a base point to the left side by one step. Further, a pipe having outer diam. d1 and inner diam. d4 is formed at the position where the surface of bearing diam. d1 of the die 2 and the surface of bearing diam. d4 of the plug 4 are faced to each other, after fixing the plug 4 and shifting the die 2 from the position where the die 2 is fixed to the right side by one step. Thus, a pipe 7b having outer diameters d1, d2 and inner diameters d3, d4 is obtained.
JP57182640A 1982-10-18 1982-10-18 Expired - Lifetime JPH0244603B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57182640A JPH0244603B2 (en) 1982-10-18 1982-10-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57182640A JPH0244603B2 (en) 1982-10-18 1982-10-18

Publications (2)

Publication Number Publication Date
JPS5973113A true JPS5973113A (en) 1984-04-25
JPH0244603B2 JPH0244603B2 (en) 1990-10-04

Family

ID=16121829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57182640A Expired - Lifetime JPH0244603B2 (en) 1982-10-18 1982-10-18

Country Status (1)

Country Link
JP (1) JPH0244603B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649728A (en) * 1985-04-23 1987-03-17 The Babcock & Wilcox Company Integral joint forming of work-hardenable high alloy tubing
JP2008520440A (en) * 2004-11-20 2008-06-19 ゲー カー エヌ ドライブライン インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング Method for shrinking a tube along a stepped mandrel to produce a tube shaft with an undercut in one process
US8210017B2 (en) 2009-08-28 2012-07-03 Sanwa Kokan Co., Ltd Steel pipe drawing apparatus and drawn steel pipe manufacturing method
WO2014104371A1 (en) * 2012-12-27 2014-07-03 三菱アルミニウム株式会社 Pipe with spirally grooved inner surface, method for manufacturing same, and heat exchanger
JP2014140897A (en) * 2012-12-27 2014-08-07 Mitsubishi Alum Co Ltd Tube with spiral groove on inner surface, manufacturing method therefor, and heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649728A (en) * 1985-04-23 1987-03-17 The Babcock & Wilcox Company Integral joint forming of work-hardenable high alloy tubing
JP2008520440A (en) * 2004-11-20 2008-06-19 ゲー カー エヌ ドライブライン インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング Method for shrinking a tube along a stepped mandrel to produce a tube shaft with an undercut in one process
US8210017B2 (en) 2009-08-28 2012-07-03 Sanwa Kokan Co., Ltd Steel pipe drawing apparatus and drawn steel pipe manufacturing method
WO2014104371A1 (en) * 2012-12-27 2014-07-03 三菱アルミニウム株式会社 Pipe with spirally grooved inner surface, method for manufacturing same, and heat exchanger
JP2014140897A (en) * 2012-12-27 2014-08-07 Mitsubishi Alum Co Ltd Tube with spiral groove on inner surface, manufacturing method therefor, and heat exchanger

Also Published As

Publication number Publication date
JPH0244603B2 (en) 1990-10-04

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