EP0966547B1 - Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit - Google Patents
Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit Download PDFInfo
- Publication number
- EP0966547B1 EP0966547B1 EP98916911A EP98916911A EP0966547B1 EP 0966547 B1 EP0966547 B1 EP 0966547B1 EP 98916911 A EP98916911 A EP 98916911A EP 98916911 A EP98916911 A EP 98916911A EP 0966547 B1 EP0966547 B1 EP 0966547B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- several
- strip
- max
- hot
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 35
- 239000010959 steel Substances 0.000 title claims description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims description 21
- 238000000137 annealing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005246 galvanizing Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229910000655 Killed steel Inorganic materials 0.000 claims 1
- 238000005098 hot rolling Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000029142 excretion Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910001563 bainite Inorganic materials 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D2211/002—Bainite
-
- 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
Definitions
- the invention relates to a method for manufacturing a steel strip with a high strength of at least 900 MPa and good formability.
- the parameters relevant for the forming can be done with high informative value for the practice from the tensile test be won. Especially the elongation at break and the Set the n-value (measure of the hardening capacity) important metrics.
- the n-value is characteristic of the deformability under a stretch drawing stress. This is the case for most sheet metal parts in a vehicle prevailing deformation mechanism.
- the n value stands in relatively good agreement with the Yield strength ratio, which is also a practical one usable measure of the strengthening ability of a Represents material.
- DE-A-3323255 describes a process for the production of high steel strip Strength and good cold formability.
- the steel defined in DE-A-3323255 lies within the ranges defined in claim 1.
- the object of the invention is to develop steel strips, which has a high strength, paired with good Formability and high component strength.
- the special economic importance of The inventive method consists in Production possibility as a hot strip in thicknesses below 2.0 mm, e.g. 1.5 mm.
- the manufacturing process requires therefore not necessarily the complex manufacturing process cold strip production with the additional steps cold rolling and final annealing.
- This material concept also includes the Possibility factory applied Surface finishing. For example, a electrolytically deposited zinc layer applied become. The enormous improvement in corrosion protection through a zinc layer can be a known fact be assumed. It is also known that ultra high strength steels for embrittlement by a Hydrogen absorption in the electrolytic Tending to galvanize. It could be shown that the steel strip according to the invention free of these dreaded galvanizing problems remains.
- Carbon is required for structural hardening and for the formation of fine precipitates.
- the content should be limited to 0.1 to 0.2%.
- Silicon increases the hardness of the mixed crystal, which requires at least 0.3%. For reasons of weldability and to avoid unfavorable scale formation, the content should be limited to 0.6%.
- Manganese at a content of at least 1.5% delays the conversion and causes the formation of hard conversion products. In order to avoid impermissibly strong micro segregations, the content should be max. Limit 2.0%.
- Phosphorus can be used to further increase solid-solution strengthening, but should not exceed 0.08% for reasons of weldability.
- Chromium promotes the formation of a bainite-rich final structure in at least 0.3%. In order not to delay the conversion too much, its content should be limited to max. Be limited to 0.80%.
- Titanium or zirconium can be used to form fine precipitates with a hardening effect.
- the effect clearly drops at levels above 0.2%.
- the maximum value is therefore set at 0.2%.
- Niobium can also be used for precipitation hardening. At least 0.04% should preferably be added. For reasons of effectiveness, the content is limited to max. 0.08% set.
- Boron improves hardenability at levels in the range of 0.0005 to 0.005%. According to the current state of knowledge, it is used for this purpose in martensitic steel. It has surprisingly been found that boron in the present case also causes a significant increase in strength in the bainitic basic structure with only a slight reduction in formability.
- the roller end temperature should be in the range of homogeneous Austenite and therefore not below 800 ° C to a sufficiently low deformation resistance guarantee and secondly deformation-induced Keep excretions low.
- the cooling conditions should be chosen so that a Conversion to pearlite is avoided and the conversion largely in the bainite stage. Shares of Martensite can contribute to further solidification. Of further solidification by excretion of finest particles can be achieved.
- This is a cooling of roll end temperature with a cooling rate of at least 30 ° C / s required. This cooling process is to finish at a temperature below 600 ° C by the Tape is wound on a reel and then in Coil cools down.
- Table 1 shows the chemical compositions of the strip steels 1 and 2 and steel 3, a comparative martensitic steel, produced according to the invention.
- Table 2 shows the characteristic mechanical properties of the strip steels 1 and 2 produced according to the invention and of the comparison steel 3, which was tempered to the values given in Table 2 by a subsequent heat treatment.
- Strip steel produced according to the invention clearly. He points a higher elongation at break and a better one Yield strength ratio as a measure of the hardening.
- Table 3 shows the influence of low reel temperature and a subsequent heat treatment on the properties of a strip steel produced according to the invention of the composition of steel 1 in Table 1.
- Low reel temperatures of preferably 330 ° C can significantly increase the strength properties, see Example 4 in Table 3.
- Another object of the invention is Achieving the beneficial effect of a subsequent one Heat treatment. It has surprisingly turned out to be found that the thermal treatment of the Steel strip produced according to the invention in the temperature range between 500 and 850 ° C the forming properties still can be further increased.
- Examples 4, 5 and 6 in Table 3 show the effect such a heat treatment on the steel 1 with the Composition according to Table 1.
- This property profile is useful for manufacturing of cold-formed parts with a high Energy absorption capacity (example 5a).
- higher annealing temperatures can lead to high strengths extraordinarily low yield strength ratios or synonymous high consolidation with good Elongation values can be achieved (Examples 5b, 6a to 6c).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19710125 | 1997-03-13 | ||
| DE19710125A DE19710125A1 (de) | 1997-03-13 | 1997-03-13 | Verfahren zur Herstellung eines Bandstahles mit hoher Festigkeit und guter Umformbarkeit |
| PCT/EP1998/001376 WO1998040522A1 (de) | 1997-03-13 | 1998-03-10 | Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0966547A1 EP0966547A1 (de) | 1999-12-29 |
| EP0966547B1 true EP0966547B1 (de) | 2001-10-04 |
Family
ID=7823066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98916911A Expired - Lifetime EP0966547B1 (de) | 1997-03-13 | 1998-03-10 | Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0966547B1 (cs) |
| CN (1) | CN1082549C (cs) |
| AR (1) | AR010130A1 (cs) |
| AT (1) | ATE206472T1 (cs) |
| CA (1) | CA2284124A1 (cs) |
| CZ (1) | CZ290944B6 (cs) |
| DE (2) | DE19710125A1 (cs) |
| ES (1) | ES2165157T3 (cs) |
| PL (1) | PL186831B1 (cs) |
| WO (1) | WO1998040522A1 (cs) |
| ZA (1) | ZA982115B (cs) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0966090A2 (en) | 1998-06-17 | 1999-12-22 | Black & Decker Inc. | Method & apparatus for charging batteries |
| EP2028282A1 (de) | 2007-08-15 | 2009-02-25 | ThyssenKrupp Steel AG | Dualphasenstahl, Flachprodukt aus einem solchen Dualphasenstahl und Verfahren zur Herstellung eines Flachprodukts |
| EP1399598B2 (de) † | 2001-06-26 | 2011-02-23 | ThyssenKrupp Steel Europe AG | Verfahren zum herstellen von hochfesten, aus einem warmband kaltverformten stahlprodukten mit guter dehnbarkeit |
| EP2489748A1 (de) | 2011-02-18 | 2012-08-22 | ThyssenKrupp Steel Europe AG | Aus einem Komplexphasenstahl hergestelltes warmgewalztes Stahlflachprodukt und Verfahren zu dessen Herstellung |
| EP1577412B2 (en) † | 2002-12-24 | 2014-11-12 | Nippon Steel & Sumitomo Metal Corporation | High strength steel sheet exhibiting good burring workability and excellent resistance to softening in heat-affected zone and method for production thereof |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041167B1 (en) * | 1998-09-29 | 2011-06-29 | JFE Steel Corporation | High strength thin steel sheet and high strength alloyed hot-dip zinc-coated steel sheet. |
| DE29818244U1 (de) * | 1998-10-13 | 1998-12-24 | Benteler Werke Ag | Stahllegierung |
| DE19937271C2 (de) | 1999-08-06 | 2003-01-09 | Hille & Mueller Gmbh & Co | Verfahren zur Herstellung von tiefzieh- oder abstreckziehfähigem, veredeltem Kaltband, sowie Kaltband, vorzugsweise zur Herstellung von zylindrischen Behältern und insbesondere Batteriebehältern |
| DE60044180D1 (de) * | 1999-09-16 | 2010-05-27 | Jfe Steel Corp | Verfahren zur herstellung einer dünnen stahlplatte mit hoher festigkeit |
| RU2156312C1 (ru) * | 2000-02-29 | 2000-09-20 | Открытое акционерное общество "НОСТА" | Способ производства катаных заготовок |
| FR2807068B1 (fr) * | 2000-03-29 | 2002-10-11 | Usinor | Acier lamine a chaud a tres haute limite d'elasticite et resistance mecanique utilisable notamment pour la realisation de piece de vehicules automobiles |
| JP4085583B2 (ja) | 2001-02-27 | 2008-05-14 | Ｊｆｅスチール株式会社 | 高強度冷延溶融亜鉛メッキ鋼板およびその製造方法 |
| EP1288322A1 (en) * | 2001-08-29 | 2003-03-05 | Sidmar N.V. | An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained |
| DE10153234A1 (de) * | 2001-10-31 | 2003-05-22 | Thyssenkrupp Stahl Ag | Für die Herstellung von nichtkornorientiertem Elektroblech bestimmtes, warmgewalztes Stahlband und Verfahren zu seiner Herstellung |
| DE10161465C1 (de) * | 2001-12-13 | 2003-02-13 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen von Warmband |
| FR2847270B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| FR2847271B1 (fr) | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| US9999918B2 (en) | 2005-10-20 | 2018-06-19 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
| US10071416B2 (en) | 2005-10-20 | 2018-09-11 | Nucor Corporation | High strength thin cast strip product and method for making the same |
| US9149868B2 (en) | 2005-10-20 | 2015-10-06 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
| ATE432372T1 (de) * | 2006-10-30 | 2009-06-15 | Thyssenkrupp Steel Ag | Verfahren zum herstellen von stahl-flachprodukten aus einem ein komplexphasen-gefüge bildenden stahl |
| ATE432375T1 (de) * | 2006-10-30 | 2009-06-15 | Thyssenkrupp Steel Ag | Verfahren zum herstellen von stahl-flachprodukten aus einem mit silizium legierten mehrphasenstahl |
| DE502006003835D1 (de) * | 2006-10-30 | 2009-07-09 | Thyssenkrupp Steel Ag | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Bor mikrolegierten Mehrphasenstahl |
| ATE516380T1 (de) * | 2007-08-15 | 2011-07-15 | Thyssenkrupp Steel Europe Ag | Dualphasenstahl, flachprodukt aus einem solchen dualphasenstahl und verfahren zur herstellung eines flachprodukts |
| CN101555574B (zh) * | 2008-04-11 | 2011-06-15 | 宝山钢铁股份有限公司 | 一种高回火抗力耐磨钢 |
| WO2011100798A1 (en) | 2010-02-20 | 2011-08-25 | Bluescope Steel Limited | Nitriding of niobium steel and product made thereby |
| DE102010056264C5 (de) * | 2010-12-24 | 2020-04-09 | Voestalpine Stahl Gmbh | Verfahren zum Erzeugen gehärteter Bauteile |
| CN102864377B (zh) * | 2012-09-10 | 2015-05-20 | 山西太钢不锈钢股份有限公司 | 一种热轧带钢及其制造方法 |
| CN107438487B (zh) | 2014-12-19 | 2021-01-12 | 纽科尔公司 | 热轧轻型马氏体钢板及其制作方法 |
| CN105624570A (zh) * | 2016-03-10 | 2016-06-01 | 绵阳市联合传动科技有限公司 | 高强度低碳合金钢制动鼓 |
| CN107653361B (zh) * | 2017-10-14 | 2020-02-18 | 上海鑫昌众星实业有限公司 | 一种深加工汽车钢板的制备工艺 |
| DE102018122901A1 (de) * | 2018-09-18 | 2020-03-19 | Voestalpine Stahl Gmbh | Verfahren zur Herstellung ultrahochfester Stahlbleche und Stahlblech hierfür |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2201855C2 (de) * | 1972-01-15 | 1982-03-04 | Estel Hoesch Werke Ag, 4600 Dortmund | Verfahren zur Herstellung von hochfesten, gut schweißbaren und kaltverformbaren Grob- und Mittelblechen und deren Verwendung |
| JPS52114518A (en) * | 1976-03-24 | 1977-09-26 | Sumitomo Metal Ind Ltd | Production of hot rolled high tensile steel material having excellent bending workability |
| AU527097B2 (en) * | 1979-01-12 | 1983-02-17 | Nippon Steel Corporation | Artifically aged low yield to tensile strength ratio high strength steel sheet |
| DE3007560A1 (de) * | 1980-02-28 | 1981-09-03 | Kawasaki Steel Corp., Kobe, Hyogo | Verfahren zum herstellen von warmgewalztem blech mit niedriger streckspannung, hoher zugfestigkeit und ausgezeichnetem formaenderungsvermoegen |
| JPS5877528A (ja) * | 1981-10-31 | 1983-05-10 | Nippon Steel Corp | 低温靭性の優れた高張力鋼の製造法 |
| JPS58185719A (ja) * | 1982-04-20 | 1983-10-29 | Kobe Steel Ltd | 高降伏比型非調質熱延高張力鋼板の製造法 |
| US4472208A (en) * | 1982-06-28 | 1984-09-18 | Sumitomo Metal Industries, Ltd. | Hot-rolled high tensile titanium steel plates and production thereof |
| JPS60190518A (ja) * | 1984-03-12 | 1985-09-28 | Kobe Steel Ltd | 冷間加工性にすぐれた熱処理省略型高張力鋼の製造方法 |
| TW363082B (en) * | 1994-04-26 | 1999-07-01 | Nippon Steel Corp | Steel sheet having high strength and being suited to deep drawing and process for producing the same |
-
1997
- 1997-03-13 DE DE19710125A patent/DE19710125A1/de not_active Ceased
-
1998
- 1998-03-10 AT AT98916911T patent/ATE206472T1/de active
- 1998-03-10 CA CA002284124A patent/CA2284124A1/en not_active Abandoned
- 1998-03-10 ES ES98916911T patent/ES2165157T3/es not_active Expired - Lifetime
- 1998-03-10 EP EP98916911A patent/EP0966547B1/de not_active Expired - Lifetime
- 1998-03-10 CN CN988040182A patent/CN1082549C/zh not_active Expired - Fee Related
- 1998-03-10 DE DE59801637T patent/DE59801637D1/de not_active Expired - Lifetime
- 1998-03-10 PL PL98335639A patent/PL186831B1/pl not_active IP Right Cessation
- 1998-03-10 WO PCT/EP1998/001376 patent/WO1998040522A1/de not_active Ceased
- 1998-03-10 CZ CZ19993219A patent/CZ290944B6/cs not_active IP Right Cessation
- 1998-03-12 AR ARP980101113A patent/AR010130A1/es unknown
- 1998-03-12 ZA ZA982115A patent/ZA982115B/xx unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0966090A2 (en) | 1998-06-17 | 1999-12-22 | Black & Decker Inc. | Method & apparatus for charging batteries |
| EP1399598B2 (de) † | 2001-06-26 | 2011-02-23 | ThyssenKrupp Steel Europe AG | Verfahren zum herstellen von hochfesten, aus einem warmband kaltverformten stahlprodukten mit guter dehnbarkeit |
| EP1577412B2 (en) † | 2002-12-24 | 2014-11-12 | Nippon Steel & Sumitomo Metal Corporation | High strength steel sheet exhibiting good burring workability and excellent resistance to softening in heat-affected zone and method for production thereof |
| EP2028282A1 (de) | 2007-08-15 | 2009-02-25 | ThyssenKrupp Steel AG | Dualphasenstahl, Flachprodukt aus einem solchen Dualphasenstahl und Verfahren zur Herstellung eines Flachprodukts |
| EP2028282B1 (de) * | 2007-08-15 | 2012-06-13 | ThyssenKrupp Steel Europe AG | Dualphasenstahl, Flachprodukt aus einem solchen Dualphasenstahl und Verfahren zur Herstellung eines Flachprodukts |
| EP2489748A1 (de) | 2011-02-18 | 2012-08-22 | ThyssenKrupp Steel Europe AG | Aus einem Komplexphasenstahl hergestelltes warmgewalztes Stahlflachprodukt und Verfahren zu dessen Herstellung |
| WO2012110165A1 (de) | 2011-02-18 | 2012-08-23 | Thyssenkrupp Steel Europe Ag | Aus einem komplexphasenstahl hergestelltes warmgewalztes stahlflachprodukt und verfahren zu dessen herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1252105A (zh) | 2000-05-03 |
| WO1998040522A1 (de) | 1998-09-17 |
| CZ290944B6 (cs) | 2002-11-13 |
| PL335639A1 (en) | 2000-05-08 |
| EP0966547A1 (de) | 1999-12-29 |
| DE59801637D1 (de) | 2001-11-08 |
| PL186831B1 (pl) | 2004-03-31 |
| DE19710125A1 (de) | 1998-09-17 |
| AR010130A1 (es) | 2000-05-17 |
| CA2284124A1 (en) | 1998-09-17 |
| ZA982115B (en) | 1998-09-14 |
| CZ321999A3 (cs) | 2000-07-12 |
| ATE206472T1 (de) | 2001-10-15 |
| CN1082549C (zh) | 2002-04-10 |
| ES2165157T3 (es) | 2002-03-01 |
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