JPS5973115A - 段付引抜鋼管 - Google Patents

段付引抜鋼管

Info

Publication number
JPS5973115A
JPS5973115A JP18386982A JP18386982A JPS5973115A JP S5973115 A JPS5973115 A JP S5973115A JP 18386982 A JP18386982 A JP 18386982A JP 18386982 A JP18386982 A JP 18386982A JP S5973115 A JPS5973115 A JP S5973115A
Authority
JP
Japan
Prior art keywords
steel pipe
diameter
die
plug
face
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
JP18386982A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0261328B2 (enrdf_load_stackoverflow
Inventor
Kan Sunaga
完 須永
Toshio Sakurai
櫻井　敏夫
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 JP18386982A priority Critical patent/JPS5973115A/ja
Publication of JPS5973115A publication Critical patent/JPS5973115A/ja
Publication of JPH0261328B2 publication Critical patent/JPH0261328B2/ja
Granted 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/16—Making tubes with varying diameter in longitudinal direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
JP18386982A 1982-10-19 1982-10-19 段付引抜鋼管 Granted JPS5973115A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18386982A JPS5973115A (ja) 1982-10-19 1982-10-19 段付引抜鋼管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18386982A JPS5973115A (ja) 1982-10-19 1982-10-19 段付引抜鋼管

Publications (2)

Publication Number Publication Date
JPS5973115A true JPS5973115A (ja) 1984-04-25
JPH0261328B2 JPH0261328B2 (enrdf_load_stackoverflow) 1990-12-19

Family

ID=16143243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18386982A Granted JPS5973115A (ja) 1982-10-19 1982-10-19 段付引抜鋼管

Country Status (1)

Country Link
JP (1) JPS5973115A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210017B2 (en) 2009-08-28 2012-07-03 Sanwa Kokan Co., Ltd Steel pipe drawing apparatus and drawn steel pipe manufacturing method
KR20180110000A (ko) 2016-03-11 2018-10-08 신닛테츠스미킨 카부시키카이샤 두께가 상이한 강관의 제조 방법 및 두께가 상이한 강관
WO2021044689A1 (ja) * 2019-09-06 2021-03-11 株式会社三五 差厚パイプの押出成形方法及び差厚パイプの押出成形装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210017B2 (en) 2009-08-28 2012-07-03 Sanwa Kokan Co., Ltd Steel pipe drawing apparatus and drawn steel pipe manufacturing method
KR20180110000A (ko) 2016-03-11 2018-10-08 신닛테츠스미킨 카부시키카이샤 두께가 상이한 강관의 제조 방법 및 두께가 상이한 강관
US11590547B2 (en) 2016-03-11 2023-02-28 Nippon Steel Corporation Method of manufacturing variable wall thickness steel pipe and variable wall thickness steel pipe
WO2021044689A1 (ja) * 2019-09-06 2021-03-11 株式会社三五 差厚パイプの押出成形方法及び差厚パイプの押出成形装置
US12214395B2 (en) 2019-09-06 2025-02-04 Sango Co., Ltd. Extrusion molding method for differential thickness pipe and extrusion molding apparatus for differential thickness pipe

Also Published As

Publication number Publication date
JPH0261328B2 (enrdf_load_stackoverflow) 1990-12-19

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