WO2008028447A1 - Stahl und verarbeitungsverfahren für die herstellung von höherfesten bruchtrennbaren maschinenbauteilen - Google Patents
Stahl und verarbeitungsverfahren für die herstellung von höherfesten bruchtrennbaren maschinenbauteilen Download PDFInfo
- Publication number
- WO2008028447A1 WO2008028447A1 PCT/DE2007/001337 DE2007001337W WO2008028447A1 WO 2008028447 A1 WO2008028447 A1 WO 2008028447A1 DE 2007001337 W DE2007001337 W DE 2007001337W WO 2008028447 A1 WO2008028447 A1 WO 2008028447A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel
- chemical composition
- fracture
- component according
- controlled cooling
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
Definitions
- the present invention relates to a steel and the processing method for the production of high-strength fracture-severable machine components. This material was developed, for example, for the production of cracking pipes.
- the steel must be suitable for forging or other hot forming.
- Forged heat with controlled cooling requires the setting of a largely pearlitic structure with a yield strength of more than 750 N / mm 2 , a tensile strength of 1000 to 1200 N / mm 2 , an elongation at break of more than 10% and a fracture rate of more than 25% , Particularly important is the suitability for fracture separation.
- the desired properties can be achieved by the targeted adjustment of a pearlitic structure with precipitates of special carbides (niobium and vanadium carbides) and of manganese sulfides by a correspondingly adjusted chemical composition, a targeted temperature control during hot forming during the production of the starting material and in the final lubrication the components (thermo-mechanical treatment) and a matched heat treatment after forging or hot working.
- steels of almost eutectoid composition having about 0.7% C, 0.5 to 0.9% Mn, 0.06 to 0.07% S and optionally 0.1 to 0.2 % V (C70S6, 70MnVS4) or medium carbon content of about 0.4% C, about 1% Mn, 0.06-0.07% S and about 0.3% V (36MnVS4) according to technical customer specifications.
- These steels have a largely pearlitic structure with vanadium carbides and manganese sulfides and comply with the specifications regarding the mechanical properties.
- Disadvantages of the known material variants are that the previous material variants have a high resource consumption of expensive and scarce alloying agents.
- vanadium is increasingly being used in the field of precipitation-hardening ferritic-pearlitic steels (AFP steels), making vanadium an increasingly scarce commodity.
- the aim of the present invention is to avoid the mentioned disadvantages by proposing a new steel which has the required mechanical properties in terms of strength (and fatigue strength) and in addition combines good toughness properties in the tensile test with simultaneously good crackability.
- the steel should be readily pourable and forgeable.
- the new steel should be able to be produced in a way that saves resources compared to the known steels by a partial substitution of the vanadium content by niobium with a correspondingly adapted forming and cooling strategy.
- the high value for the yield strength is achieved in addition to the basic chemical composition by a precipitation of finely divided carbides of the special carbide formers niobium and vanadium.
- a resolution of the existing carbides before the last hot forming step is required as well as a controlled temperature control during hot forming and the subsequent cooling.
- Finely divided precipitates can be achieved in particular with a low final forming temperature followed by slightly accelerated cooling. As a result, in particular the yield strength is increased and thus the yield ratio significantly improved.
- the tensile strength can be differentiated from the base value given by the base composition with 0.5% C, 0.6% Si, 1.0% Mn, 0.23% Cr, 0.2% Ni and 0.14% V by a slightly accelerated Cooling after hot forming can also be set in the desired range.
- the toughness characteristics are limited in particular by the targeted addition of 0.06 to 0.07% sulfur. Also positive in this sense are the carbon content and the relatively high nitrogen content. Decisive for a good crackability of the material is a crystalline fracture without macroscopic deformation. This is dictated by the alloy concept of high carbon, nitrogen and sulfur content and comparatively low levels of chromium, nickel and molybdenum.
- the invention relates to a steel for producing fracture-separable components for the vehicle industry with the following chemical composition in percent by weight:
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Processing Of Solid Wastes (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2009001971A MX2009001971A (es) | 2006-09-01 | 2007-07-27 | Acero y metodo de procesamiento para la fabricacion de componentes de maquinaria mas solidos que se pueden separar por fraccionamiento. |
| US12/310,588 US20100186855A1 (en) | 2006-09-01 | 2007-07-27 | Steel and processing method for the manufacture of high strength, fracture-splittable machinery components |
| AU2007294317A AU2007294317B2 (en) | 2006-09-01 | 2007-07-27 | Steel, and processing method for the production of higher-strength fracture-splittable machine components |
| CA002666677A CA2666677A1 (en) | 2006-09-01 | 2007-07-27 | Steel and processing method for the manufacture of high strength, fracture-splittable machinery components |
| EP07801178A EP2057298B1 (de) | 2006-09-01 | 2007-07-27 | Stahl und verarbeitungsverfahren für die herstellung von höherfesten bruchtrennbaren maschinenbauteilen |
| BRPI0716206-5A2A BRPI0716206A2 (pt) | 2006-09-01 | 2007-07-27 | Aço e processo de processamento para a produção de componentes de máquina de resistência mais alta, divisíveis por ruptura |
| JP2009525910A JP2010501733A (ja) | 2006-09-01 | 2007-07-27 | より強度の高い、破断分離可能な機械部材を製造するための鋼、および加工方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006041146A DE102006041146A1 (de) | 2006-09-01 | 2006-09-01 | Stahl und Verarbeitungsverfahren für die Herstellung von höherfesten bruchtrennbaren Maschinenbauteilen |
| DE102006041146.3 | 2006-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008028447A1 true WO2008028447A1 (de) | 2008-03-13 |
Family
ID=38989625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2007/001337 Ceased WO2008028447A1 (de) | 2006-09-01 | 2007-07-27 | Stahl und verarbeitungsverfahren für die herstellung von höherfesten bruchtrennbaren maschinenbauteilen |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US20100186855A1 (de) |
| EP (1) | EP2057298B1 (de) |
| JP (1) | JP2010501733A (de) |
| KR (1) | KR20090049591A (de) |
| CN (1) | CN101542007A (de) |
| AR (1) | AR062184A1 (de) |
| AU (1) | AU2007294317B2 (de) |
| BR (1) | BRPI0716206A2 (de) |
| CA (1) | CA2666677A1 (de) |
| DE (1) | DE102006041146A1 (de) |
| MX (1) | MX2009001971A (de) |
| RU (1) | RU2441093C2 (de) |
| TW (1) | TW200825188A (de) |
| WO (1) | WO2008028447A1 (de) |
| ZA (1) | ZA200900848B (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3168319B1 (de) * | 2014-07-08 | 2020-12-16 | Sidenor Investigación y Desarrollo, S.A. | Mikrolegierter stahl zum warmformen von hochbeständigen teilen mit hoher streckgrenze |
| CN105543651B (zh) * | 2015-12-21 | 2017-11-17 | 武钢集团昆明钢铁股份有限公司 | 一种用于制造水电站发电机转轴、铰轴的锻件钢钢水及其冶炼方法 |
| CN107619995A (zh) * | 2017-08-11 | 2018-01-23 | 江阴兴澄特种钢铁有限公司 | 一种大直径工程机械液压油缸活塞杆用圆钢及其制造方法 |
| EP3453777A1 (de) | 2017-09-08 | 2019-03-13 | Cemtas Celk Makina Sanayi Ve Ticaret Anonim Sirketi | Hochfester und bruchspaltbarer mikrolegierter stahl |
| CN108504934A (zh) * | 2018-05-11 | 2018-09-07 | 攀钢集团攀枝花钢铁研究院有限公司 | 含V、Nb、N非调质预硬型塑料模具钢及其制备方法 |
| CN108504935A (zh) * | 2018-05-11 | 2018-09-07 | 攀钢集团攀枝花钢铁研究院有限公司 | 含v、n非调质预硬型塑料模具钢及其制备方法 |
| CN108624815A (zh) * | 2018-05-11 | 2018-10-09 | 攀钢集团攀枝花钢铁研究院有限公司 | 含V、Nb、Ti非调质预硬型塑料模具钢及其制备方法 |
| CN108486472A (zh) * | 2018-05-11 | 2018-09-04 | 攀钢集团攀枝花钢铁研究院有限公司 | 含V、Ti、N非调质预硬型塑料模具钢及其制备方法 |
| CN108546879A (zh) * | 2018-05-11 | 2018-09-18 | 攀钢集团攀枝花钢铁研究院有限公司 | 含V、Nb非调质预硬型塑料模具钢及其制备方法 |
| CN110284055A (zh) * | 2019-06-17 | 2019-09-27 | 威海津恒科技有限公司 | 一种耐磨汽车冲压件模具及其制备方法 |
| US20220403487A1 (en) | 2019-11-18 | 2022-12-22 | Arcelormittal | Forged part of steel and a method of manufacturing thereof |
| TR201921217A2 (tr) | 2019-12-24 | 2021-07-26 | Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi | Yüksek mukavemetli, düşük alaşımlı çelik kompozisyonu |
| CN111235487B (zh) * | 2020-03-23 | 2021-08-31 | 马鞍山钢铁股份有限公司 | 一种长寿命钎杆用钢及其生产方法 |
| CN114058943A (zh) * | 2021-09-14 | 2022-02-18 | 武汉钢铁有限公司 | 一种微合金钢及其制作方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035681A1 (de) | 1980-03-12 | 1981-09-16 | Thyssen Edelstahlwerke AG | Verwendung eines Stahls hoher Festigkeit und Zähigkeit |
| JPH01176055A (ja) * | 1987-12-28 | 1989-07-12 | Kawasaki Steel Corp | 被削性に優れた熱間鍛造用非調質鋼 |
| JPH04191348A (ja) * | 1990-11-24 | 1992-07-09 | Daido Steel Co Ltd | 高靭性非調質鋼 |
| US5769970A (en) * | 1995-12-14 | 1998-06-23 | Ascometal (Societe Anonyme) | Steel for the manufacture of separable mechanical components and separable mechanical component |
| EP0856590A2 (de) * | 1997-02-04 | 1998-08-05 | Daido Tokushuko Kabushiki Kaisha | Hochfester nicht-thermischer Frischstahl für Warmschmieden und Verfahren zur Teilung von einem Schmiedestück aus dem nicht-thermischen Frischstahl |
| US20040131494A1 (en) * | 2002-11-20 | 2004-07-08 | Koichiro Inoue | Microalloyed steel easy to separate by fracture splitting at low temperature and fitting member produced through separation by fracture splitting at low temperature |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2774098B1 (fr) * | 1998-01-28 | 2001-08-03 | Ascometal Sa | Acier et procede pour la fabrication de pieces de mecanique secables |
| JP3671688B2 (ja) * | 1998-08-28 | 2005-07-13 | 株式会社神戸製鋼所 | 破断分断性に優れた破断分割型コンロッド用熱間鍛造用非調質鋼 |
| JP5023410B2 (ja) * | 2001-03-02 | 2012-09-12 | 大同特殊鋼株式会社 | 破断分離が容易な熱間鍛造用非調質鋼 |
| JP3893889B2 (ja) * | 2001-03-21 | 2007-03-14 | 大同特殊鋼株式会社 | 破断による分離が容易な熱間鍛造用非調質鋼 |
| RU2203965C2 (ru) * | 2001-07-05 | 2003-05-10 | Открытое акционерное общество "Северсталь" | Способ производства холоднокатаной полосы |
| JP2003193184A (ja) * | 2001-12-28 | 2003-07-09 | Kobe Steel Ltd | 破断分割型コネクティングロッド及びそれ用の鋼 |
| JP4115737B2 (ja) * | 2002-04-12 | 2008-07-09 | 山陽特殊製鋼株式会社 | 微細硫化物を利用した被削性と破断分割性に優れる機械構造用鋼 |
-
2006
- 2006-09-01 DE DE102006041146A patent/DE102006041146A1/de not_active Withdrawn
-
2007
- 2007-06-23 TW TW096122683A patent/TW200825188A/zh unknown
- 2007-07-27 US US12/310,588 patent/US20100186855A1/en not_active Abandoned
- 2007-07-27 CN CNA2007800319547A patent/CN101542007A/zh active Pending
- 2007-07-27 JP JP2009525910A patent/JP2010501733A/ja active Pending
- 2007-07-27 CA CA002666677A patent/CA2666677A1/en not_active Abandoned
- 2007-07-27 EP EP07801178A patent/EP2057298B1/de active Active
- 2007-07-27 RU RU2009111860/02A patent/RU2441093C2/ru not_active IP Right Cessation
- 2007-07-27 MX MX2009001971A patent/MX2009001971A/es active IP Right Grant
- 2007-07-27 KR KR1020097003628A patent/KR20090049591A/ko not_active Ceased
- 2007-07-27 AU AU2007294317A patent/AU2007294317B2/en not_active Ceased
- 2007-07-27 BR BRPI0716206-5A2A patent/BRPI0716206A2/pt not_active IP Right Cessation
- 2007-07-27 WO PCT/DE2007/001337 patent/WO2008028447A1/de not_active Ceased
- 2007-08-02 AR ARP070103409A patent/AR062184A1/es not_active Application Discontinuation
-
2009
- 2009-02-05 ZA ZA200900848A patent/ZA200900848B/xx unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035681A1 (de) | 1980-03-12 | 1981-09-16 | Thyssen Edelstahlwerke AG | Verwendung eines Stahls hoher Festigkeit und Zähigkeit |
| JPH01176055A (ja) * | 1987-12-28 | 1989-07-12 | Kawasaki Steel Corp | 被削性に優れた熱間鍛造用非調質鋼 |
| JPH04191348A (ja) * | 1990-11-24 | 1992-07-09 | Daido Steel Co Ltd | 高靭性非調質鋼 |
| US5769970A (en) * | 1995-12-14 | 1998-06-23 | Ascometal (Societe Anonyme) | Steel for the manufacture of separable mechanical components and separable mechanical component |
| EP0779375B1 (de) | 1995-12-14 | 2000-06-07 | ASCOMETAL (Société anonyme) | Stahl für die Herstellung von teilbaren Maschinenteilen und Maschinenteile, hergestellt aus diesen Stahl |
| EP0856590A2 (de) * | 1997-02-04 | 1998-08-05 | Daido Tokushuko Kabushiki Kaisha | Hochfester nicht-thermischer Frischstahl für Warmschmieden und Verfahren zur Teilung von einem Schmiedestück aus dem nicht-thermischen Frischstahl |
| US20040131494A1 (en) * | 2002-11-20 | 2004-07-08 | Koichiro Inoue | Microalloyed steel easy to separate by fracture splitting at low temperature and fitting member produced through separation by fracture splitting at low temperature |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2057298A1 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200825188A (en) | 2008-06-16 |
| AR062184A1 (es) | 2008-10-22 |
| MX2009001971A (es) | 2009-03-09 |
| ZA200900848B (en) | 2009-12-30 |
| DE102006041146A1 (de) | 2008-03-06 |
| BRPI0716206A2 (pt) | 2013-11-12 |
| EP2057298B1 (de) | 2012-11-14 |
| EP2057298A1 (de) | 2009-05-13 |
| AU2007294317B2 (en) | 2011-10-13 |
| CN101542007A (zh) | 2009-09-23 |
| AU2007294317A1 (en) | 2008-03-13 |
| RU2441093C2 (ru) | 2012-01-27 |
| KR20090049591A (ko) | 2009-05-18 |
| US20100186855A1 (en) | 2010-07-29 |
| RU2009111860A (ru) | 2010-10-10 |
| JP2010501733A (ja) | 2010-01-21 |
| CA2666677A1 (en) | 2008-03-13 |
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