EP3463706A1 - Method for producing an elongated hollow body consisting of steel and having a polygonal, in particular square or rectangular, cross-section - Google Patents
Method for producing an elongated hollow body consisting of steel and having a polygonal, in particular square or rectangular, cross-sectionInfo
- Publication number
- EP3463706A1 EP3463706A1 EP17729820.5A EP17729820A EP3463706A1 EP 3463706 A1 EP3463706 A1 EP 3463706A1 EP 17729820 A EP17729820 A EP 17729820A EP 3463706 A1 EP3463706 A1 EP 3463706A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- final
- intermediate hollow
- shaping
- temperature
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 31
- 230000001066 destructive effect Effects 0.000 claims abstract description 13
- 230000009466 transformation Effects 0.000 claims abstract description 4
- 238000009659 non-destructive testing Methods 0.000 claims description 26
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 9
- 239000006249 magnetic particle Substances 0.000 claims description 7
- 238000003483 aging Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000013100 final test Methods 0.000 claims description 3
- 238000011089 mechanical engineering Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 11
- 239000000047 product Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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 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
-
- 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
- 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
- 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
- C21D9/085—Cooling or quenching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture 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
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/155—Making tubes with non circular section
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016110045.5A DE102016110045A1 (en) | 2016-05-31 | 2016-05-31 | Process for producing an elongated hollow body made of steel with a polygonal, in particular square or rectangular, cross section |
DE102017100185 | 2017-01-06 | ||
PCT/EP2017/063206 WO2017207660A1 (en) | 2016-05-31 | 2017-05-31 | Method for producing an elongated hollow body consisting of steel and having a polygonal, in particular square or rectangular, cross-section |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3463706A1 true EP3463706A1 (en) | 2019-04-10 |
EP3463706B1 EP3463706B1 (en) | 2022-07-20 |
Family
ID=59055191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17729820.5A Active EP3463706B1 (en) | 2016-05-31 | 2017-05-31 | Method for producing an elongated hollow body consisting of steel and having a polygonal, in particular square or rectangular, cross-section |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3463706B1 (en) |
JP (1) | JP7051718B2 (en) |
CN (1) | CN109311071B (en) |
BR (1) | BR112018074664B1 (en) |
ES (1) | ES2927705T3 (en) |
WO (1) | WO2017207660A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779817A (en) * | 1972-09-25 | 1973-12-18 | United States Steel Corp | Method of producing quenched and tempered hollow steel structural members of polygonal cross section |
JPS62177124A (en) * | 1986-01-29 | 1987-08-04 | Nippon Steel Corp | Manufacture of steel pipe for thermal well having low rate of creep deformation |
US5379237A (en) * | 1990-05-31 | 1995-01-03 | Integrated Diagnostic Measurement Corporation | Automated system for controlling the quality of regularly-shaped products during their manufacture |
JPH0688132A (en) * | 1992-09-09 | 1994-03-29 | Nippon Steel Corp | Production of square pipe low in yield ratio and excellent in weatherability |
JPH0938721A (en) * | 1995-07-28 | 1997-02-10 | Nakajima Kokan Kk | Production of square steel tube |
US5802903A (en) | 1997-01-28 | 1998-09-08 | Nakajima Steel Pipe Co., Ltd | Manufacturing method for angled steel pipes |
JP4945946B2 (en) * | 2005-07-26 | 2012-06-06 | 住友金属工業株式会社 | Seamless steel pipe and manufacturing method thereof |
CN100489263C (en) * | 2007-01-31 | 2009-05-20 | 天津钢管集团股份有限公司 | Technology for manufacturing collar thick-wall seamless steel pipe |
CN101386038B (en) * | 2008-10-21 | 2011-06-08 | 烟台鲁宝钢管有限责任公司 | Manufacture method of seamless tube line steel tube for X52 steel grade low temperature |
CN101670520A (en) * | 2009-09-17 | 2010-03-17 | 苏州贝思特金属制品有限公司 | Method for manufacturing seamless steel tube |
JP5862328B2 (en) * | 2011-01-31 | 2016-02-16 | Jfeスチール株式会社 | Steel cleanliness evaluation method |
CN102489944A (en) * | 2011-11-29 | 2012-06-13 | 常熟市无缝钢管有限公司 | Processing method of 2Cr13 rectangular pipe |
DE102012006472B4 (en) * | 2012-03-22 | 2013-11-21 | Europipe Gmbh | Method for producing welded steel pipes |
DE102013108803A1 (en) * | 2013-08-14 | 2015-02-19 | Vallourec Deutschland Gmbh | Process for producing a tempered seamless hot-worked steel tube |
-
2017
- 2017-05-31 EP EP17729820.5A patent/EP3463706B1/en active Active
- 2017-05-31 WO PCT/EP2017/063206 patent/WO2017207660A1/en unknown
- 2017-05-31 JP JP2018561642A patent/JP7051718B2/en active Active
- 2017-05-31 BR BR112018074664-9A patent/BR112018074664B1/en active IP Right Grant
- 2017-05-31 CN CN201780033095.9A patent/CN109311071B/en active Active
- 2017-05-31 ES ES17729820T patent/ES2927705T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
BR112018074664A2 (en) | 2019-03-06 |
ES2927705T3 (en) | 2022-11-10 |
WO2017207660A1 (en) | 2017-12-07 |
EP3463706B1 (en) | 2022-07-20 |
JP7051718B2 (en) | 2022-04-11 |
CN109311071A (en) | 2019-02-05 |
JP2019523709A (en) | 2019-08-29 |
BR112018074664B1 (en) | 2024-01-09 |
CN109311071B (en) | 2024-03-08 |
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