WO2007108038A3 - Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom - Google Patents

Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom Download PDF

Info

Publication number
WO2007108038A3
WO2007108038A3 PCT/IT2007/000214 IT2007000214W WO2007108038A3 WO 2007108038 A3 WO2007108038 A3 WO 2007108038A3 IT 2007000214 W IT2007000214 W IT 2007000214W WO 2007108038 A3 WO2007108038 A3 WO 2007108038A3
Authority
WO
WIPO (PCT)
Prior art keywords
making
weldable
production system
mechanical strength
tube
Prior art date
Application number
PCT/IT2007/000214
Other languages
French (fr)
Other versions
WO2007108038A2 (en
WO2007108038A8 (en
Inventor
Sale Serena Omodeo
Original Assignee
Gilcotubi S R L
Sale Serena Omodeo
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 Gilcotubi S R L, Sale Serena Omodeo filed Critical Gilcotubi S R L
Priority to JP2009501026A priority Critical patent/JP2009530499A/en
Priority to EP07736718.3A priority patent/EP1996738B1/en
Priority to US12/293,594 priority patent/US20090277543A1/en
Publication of WO2007108038A2 publication Critical patent/WO2007108038A2/en
Publication of WO2007108038A3 publication Critical patent/WO2007108038A3/en
Publication of WO2007108038A8 publication Critical patent/WO2007108038A8/en

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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Extraction Processes (AREA)

Abstract

A production system weldable and stainless tubular structures with high mechanical strength and related obtained product, particularly for making tubular elements in cold-drawn stainless steel, workable at different thicknesses and shapes, provided with high performances in terms of mechanical characteristics and weldability, for the construction of light and ultralight structural frames destined for a dynamic use. It comprises a creation step of a tip for making the end of the tube smaller, so that it can pass through the drawing equipment and be coupled for drawing, a step of annealing heat treatment for softening the material and making it deformable. The system provides a mechanical test for evaluating the mechanical characteristics of the material and a metallography for viewing the structure of the material and evaluating if it comes within pre-established parameters for the drawing and a chemical preparation of the surfaces, for lubricating the contact surfaces of the tube with the drawing equipment and for avoiding seizures during the drawing. The preceding steps are repeated until the desired thickness. A step of final heat treatment follows, for reforming the structure of the steel and for fixing the desired final characteristics. Finally, a step of straightening is carried out for make the drawn and furnace- treated tube rectilinear, and a step of passivation for inducing a compact oxide patina ensuring its resistance to corrosion. The cutting, control and packaging operations follow.
PCT/IT2007/000214 2006-03-23 2007-03-23 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom WO2007108038A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009501026A JP2009530499A (en) 2006-03-23 2007-03-23 Manufacturing system for weldable and stainless steel tubular structures having high strength and products obtained therefrom
EP07736718.3A EP1996738B1 (en) 2006-03-23 2007-03-23 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom
US12/293,594 US20090277543A1 (en) 2006-03-23 2007-03-23 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000021A ITMN20060021A1 (en) 2006-03-23 2006-03-23 PRODUCTION SYSTEM FOR STAINLESS AND WELDABLE TUBULAR STRUCTURES WITH HIGH MECHANICAL RESISTANCE AND ITS PRODUCT OBTAINED
ITMN2006A000021 2006-03-23

Publications (3)

Publication Number Publication Date
WO2007108038A2 WO2007108038A2 (en) 2007-09-27
WO2007108038A3 true WO2007108038A3 (en) 2007-11-22
WO2007108038A8 WO2007108038A8 (en) 2007-12-21

Family

ID=38433912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000214 WO2007108038A2 (en) 2006-03-23 2007-03-23 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom

Country Status (5)

Country Link
US (1) US20090277543A1 (en)
EP (1) EP1996738B1 (en)
JP (1) JP2009530499A (en)
IT (1) ITMN20060021A1 (en)
WO (1) WO2007108038A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102741938B (en) * 2010-01-28 2015-05-06 新日铁住金株式会社 Method of heat-treating metal pipes for nuclear power plant
US20110209802A1 (en) * 2010-03-01 2011-09-01 Chih-Feng Ho Method for processing steel tubes and the likes
DE102013104806A1 (en) * 2013-05-08 2014-11-13 Sandvik Materials Technology Deutschland Gmbh belt furnace
CN108544186A (en) * 2018-03-28 2018-09-18 徐州东鑫铸造有限公司 A kind of screw production technology
CN113681242A (en) * 2021-08-31 2021-11-23 浙江圣洁钛业科技有限公司 Processing technology of high-performance stainless steel pipe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887224A (en) * 1981-11-20 1983-05-25 Sumitomo Metal Ind Ltd Production of boiler tube made of austenitic stainless steel
JPH01123026A (en) * 1987-11-09 1989-05-16 Kawasaki Steel Corp Manufacture of seamless two-phase stainless steel tube
EP0916420A2 (en) * 1997-11-12 1999-05-19 KAISER AEROSPACE & ELECTRONICS CORPORATION Welded pipe
JPH11158551A (en) * 1997-11-27 1999-06-15 Sumitomo Metal Ind Ltd Production of martensitic stainless steel pipe
US6136109A (en) * 1995-04-21 2000-10-24 Kawasaki Steel Corporation Method of manufacturing high chromium martensite steel pipe having excellent pitting resistance
EP1288316A1 (en) * 2001-08-29 2003-03-05 Kawasaki Steel Corporation Method for making high-strength high-toughness martensitic stainless steel seamless pipe

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519495A (en) * 1968-12-31 1970-07-07 Hooker Chemical Corp Process for coating metal surfaces
JPS62170484A (en) * 1986-01-21 1987-07-27 Nippon Parkerizing Co Ltd Method for lubricating stainless steel before cold working
US5411808A (en) * 1992-02-13 1995-05-02 Nippon Steel Corporation Oriented electrical steel sheet having low core loss and method of manufacturing same
JP2513714Y2 (en) * 1992-11-09 1996-10-09 正憲 安原 Bicycle frame structure using main pipe
JPH07172365A (en) * 1993-12-20 1995-07-11 Ryoda Sato Bicycle and saddle, frame, handlebar and fork for bicycle
JP3032706U (en) * 1996-06-21 1997-01-10 文彦 林 Bicycle front hawk stem
US5865931A (en) * 1997-02-10 1999-02-02 Aluminum Company Of America Reflective vehicle trim
EP1143019B1 (en) * 1999-09-29 2014-11-26 JFE Steel Corporation Method for manufacturing a coiled steel sheet
JP4259854B2 (en) * 2002-11-22 2009-04-30 住友金属工業株式会社 Extrusion method for uneven wall metal pipe and die for processing the same
JP2004323563A (en) * 2003-04-22 2004-11-18 Sugimura Kagaku Kogyo Kk Lubricant for plastic working and method for plastic working
JP2005344190A (en) * 2004-06-07 2005-12-15 Nisshin Steel Co Ltd Two-wheeled vehicle structural member made of stainless steel
US7883118B2 (en) * 2005-03-29 2011-02-08 Sumitomo Metal Industries, Ltd. Threaded joint for steel pipes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887224A (en) * 1981-11-20 1983-05-25 Sumitomo Metal Ind Ltd Production of boiler tube made of austenitic stainless steel
JPH01123026A (en) * 1987-11-09 1989-05-16 Kawasaki Steel Corp Manufacture of seamless two-phase stainless steel tube
US6136109A (en) * 1995-04-21 2000-10-24 Kawasaki Steel Corporation Method of manufacturing high chromium martensite steel pipe having excellent pitting resistance
EP0916420A2 (en) * 1997-11-12 1999-05-19 KAISER AEROSPACE & ELECTRONICS CORPORATION Welded pipe
JPH11158551A (en) * 1997-11-27 1999-06-15 Sumitomo Metal Ind Ltd Production of martensitic stainless steel pipe
EP1288316A1 (en) * 2001-08-29 2003-03-05 Kawasaki Steel Corporation Method for making high-strength high-toughness martensitic stainless steel seamless pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197434, Derwent World Patents Index; Class M, Page 21, AN 1974-61151V, XP002449836 *

Also Published As

Publication number Publication date
EP1996738B1 (en) 2020-04-01
WO2007108038A2 (en) 2007-09-27
ITMN20060021A1 (en) 2007-09-24
WO2007108038A8 (en) 2007-12-21
JP2009530499A (en) 2009-08-27
US20090277543A1 (en) 2009-11-12
EP1996738A2 (en) 2008-12-03

Similar Documents

Publication Publication Date Title
WO2007108038A3 (en) Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom
WO2010099779A3 (en) Method and apparatus for welding wires, including an annealing process prior to, during, or following the welding process; wire produced; use of small tubes in said method
WO2011082128A8 (en) Processes for welding composite materials and articles therefrom
WO2008133718A3 (en) A gas separation membrane system and method of making thereof using nanoscale metal material
WO2008115781A3 (en) Method of producing microchannel and nanochannel articles
IL201857A0 (en) Method for the production of polymer-coated metal foils, and use thereof
EP2163881A3 (en) Method For Determining Reheat Cracking Susceptibility
WO2008123209A1 (en) Seamless bend tube, weld joint with seamless straight tube, and method of producing them
EP2347842A3 (en) Expansion chucking device and method of manufacture thereof
EP2202331A4 (en) Process for producing metal member, structure member with thus produced metal member, and method of repairing metal member
WO2012000490A3 (en) Method and device for incrementally shaping profiled pipes, in particular profiled pipes having cross-sections that vary over the longitudinal axis and profiled pipe of this type
CN102962581B (en) The Cold welding method of deformation zinc alloy and copper alloy wire
EP3984683A1 (en) Bonded joint, and method for manufacturing bonded joint
CN104107845B (en) A kind of production technology of stainless-steel pipe
WO2009075525A3 (en) Field-assemblable apparatus for manufacturing steel pipes
CN103981422A (en) Large deformation processing process of 825 alloy tubular product
EP2008731A4 (en) Mandrel bar for rolling of high alloy, method for surface treatment of the mandrel bar, method for manufacture of the mandrel bar, and method for operation of seamless steel pipe production apparatus
ATE505292T1 (en) WIRE ROW MATERIAL AND PRODUCTION METHOD THEREOF
WO2011146684A3 (en) Nano-scale coatings and related methods suitable for in-vivo use
WO2014104311A1 (en) Metal porous body
CN106088333A (en) Mortise and tenon type U-shaped steel pipe bundle
CN109226921B (en) Corrosion-resistant welding steel structure beneficial to solder circulation and manufacturing method thereof
WO2012110421A8 (en) Method of producing a welded article of dispersion strengthened platinum based alloy with two steps welding
Kang et al. Efficient process design for closure and healing of voids in open die forging of superhigh C-steel shaft
WO2011018148A8 (en) Process and device for connecting oxide-dispersed precious metal sheet using hammer welding

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2007736718

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2009501026

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 12293594

Country of ref document: US