IT1174159B - Metodo per la fabbricazione di tubi di acciaio piegatti, presentanti una resistenza meccanica ed una tenacita' a bassa temperatura eccelenti - Google Patents

Metodo per la fabbricazione di tubi di acciaio piegatti, presentanti una resistenza meccanica ed una tenacita' a bassa temperatura eccelenti

Info

Publication number
IT1174159B
IT1174159B IT21334/84A IT2133484A IT1174159B IT 1174159 B IT1174159 B IT 1174159B IT 21334/84 A IT21334/84 A IT 21334/84A IT 2133484 A IT2133484 A IT 2133484A IT 1174159 B IT1174159 B IT 1174159B
Authority
IT
Italy
Prior art keywords
excelent
presenting
manufacture
low temperature
mechanical strength
Prior art date
Application number
IT21334/84A
Other languages
English (en)
Other versions
IT8421334A0 (it
Inventor
Taira Tadakki
Takehara Junichiro
Ume Kazuyoshi
Original Assignee
Nippon Kokan 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
Priority claimed from JP10429083A external-priority patent/JPS59232226A/ja
Priority claimed from JP10428983A external-priority patent/JPS59232225A/ja
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Publication of IT8421334A0 publication Critical patent/IT8421334A0/it
Application granted granted Critical
Publication of IT1174159B publication Critical patent/IT1174159B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
IT21334/84A 1983-06-13 1984-06-08 Metodo per la fabbricazione di tubi di acciaio piegatti, presentanti una resistenza meccanica ed una tenacita' a bassa temperatura eccelenti IT1174159B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10429083A JPS59232226A (ja) 1983-06-13 1983-06-13 耐食性および靭性に優れたクラツド曲り管の製造方法
JP10428983A JPS59232225A (ja) 1983-06-13 1983-06-13 高張力高靭性曲り管の製造方法

Publications (2)

Publication Number Publication Date
IT8421334A0 IT8421334A0 (it) 1984-06-08
IT1174159B true IT1174159B (it) 1987-07-01

Family

ID=26444794

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21334/84A IT1174159B (it) 1983-06-13 1984-06-08 Metodo per la fabbricazione di tubi di acciaio piegatti, presentanti una resistenza meccanica ed una tenacita' a bassa temperatura eccelenti

Country Status (5)

Country Link
CA (1) CA1249121A (it)
FR (1) FR2547750B1 (it)
GB (1) GB2144148B (it)
IT (1) IT1174159B (it)
SE (1) SE462102B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390743B (de) * 1988-09-16 1990-06-25 Voest Alpine Stahl Donawitz Verfahren zur herstellung von windungslegerrohren
EP0954617B1 (de) * 1997-01-15 2001-08-08 MANNESMANN Aktiengesellschaft Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen
CZ289424B6 (cs) * 1999-06-08 2002-01-16 Jinpo Plus A. S. Způsob výroby trubních oblouků z přímých, spirálově svařovaných trub
AU2010207269B2 (en) * 2009-01-21 2013-08-29 Nippon Steel Corporation Bent metal member and a method for its manufacture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943011A (en) * 1972-03-16 1976-03-09 Texas Instruments Incorporated Deformable composite material
JPS518159A (en) * 1974-07-11 1976-01-22 Nippon Steel Corp Kyokukanno seizoho
US4178417A (en) * 1977-03-23 1979-12-11 The Japan Steel Works, Ltd. Clad steel
GB1601651A (en) * 1978-03-08 1981-11-04 Kobe Steel Ltd Niobiumcontaining weldable structural steel
JPS54132421A (en) * 1978-04-05 1979-10-15 Nippon Steel Corp Manufacture of high toughness bainite high tensile steel plate with superior weldability
JPS58151425A (ja) * 1982-02-27 1983-09-08 Nippon Kokan Kk <Nkk> 低温靭性の優れた高耐食性クラツド鋼管の製造方法

Also Published As

Publication number Publication date
FR2547750B1 (fr) 1992-08-14
SE8402898L (sv) 1984-12-14
GB2144148B (en) 1986-09-03
GB2144148A (en) 1985-02-27
CA1249121A (en) 1989-01-24
FR2547750A1 (fr) 1984-12-28
GB8413740D0 (en) 1984-07-04
IT8421334A0 (it) 1984-06-08
SE8402898D0 (sv) 1984-05-29
SE462102B (sv) 1990-05-07

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940629