EP0849368A1 - Laminé profilé et procédé pour sa fabrication - Google Patents

Laminé profilé et procédé pour sa fabrication Download PDF

Info

Publication number: EP0849368A1
Authority: EP; European Patent Office
Prior art keywords: alloy; rolling stock; iron; cooling; rail
Prior art date: 1996-12-19
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

Application number

EP97890249A

Other languages

German (de)

English (en)

Other versions

EP0849368B1 (fr

Inventor

Albin Dr. Jöller

Peter Dr. Pointner

Herbert-Adolf Dipl.-Ing. Schiffer

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Voestalpine Rail Technology GmbH

Original Assignee

Voestalpine Schienen GmbH

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.)

1996-12-19

Filing date

1997-12-16

Publication date

1998-06-24

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3530300&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0849368(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1997-12-16 Application filed by Voestalpine Schienen GmbH filed Critical Voestalpine Schienen GmbH

1997-12-16 Priority to SI9730643T priority Critical patent/SI0849368T1/xx

1998-06-24 Publication of EP0849368A1 publication Critical patent/EP0849368A1/fr

2004-04-28 Application granted granted Critical

2004-04-28 Publication of EP0849368B1 publication Critical patent/EP0849368B1/fr

2017-12-16 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Links

238000004519 manufacturing process Methods 0.000 title claims abstract description 11
XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 47
229910045601 alloy Inorganic materials 0.000 claims abstract description 42
239000000956 alloy Substances 0.000 claims abstract description 42
238000001816 cooling Methods 0.000 claims abstract description 36
229910052710 silicon Inorganic materials 0.000 claims abstract description 20
229910052799 carbon Inorganic materials 0.000 claims abstract description 19
229910001566 austenite Inorganic materials 0.000 claims abstract description 18
229910000734 martensite Inorganic materials 0.000 claims abstract description 18
230000009466 transformation Effects 0.000 claims abstract description 15
239000000203 mixture Substances 0.000 claims abstract description 8
229910052804 chromium Inorganic materials 0.000 claims abstract description 7
229910052748 manganese Inorganic materials 0.000 claims abstract description 5
239000012535 impurity Substances 0.000 claims abstract description 4
229910052796 boron Inorganic materials 0.000 claims abstract description 3
229910052735 hafnium Inorganic materials 0.000 claims abstract description 3
229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
229910052759 nickel Inorganic materials 0.000 claims abstract description 3
229910052758 niobium Inorganic materials 0.000 claims abstract description 3
229910052715 tantalum Inorganic materials 0.000 claims abstract description 3
229910052721 tungsten Inorganic materials 0.000 claims abstract description 3
229910052720 vanadium Inorganic materials 0.000 claims abstract description 3
229910052726 zirconium Inorganic materials 0.000 claims abstract 2
238000005096 rolling process Methods 0.000 claims description 45
239000000463 material Substances 0.000 claims description 39
238000000034 method Methods 0.000 claims description 30
229910052742 iron Inorganic materials 0.000 claims description 22
238000006243 chemical reaction Methods 0.000 claims description 20
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 17
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
229910052782 aluminium Inorganic materials 0.000 claims description 15
239000010703 silicon Substances 0.000 claims description 15
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
239000002826 coolant Substances 0.000 claims description 14
229910001563 bainite Inorganic materials 0.000 claims description 13
230000008569 process Effects 0.000 claims description 12
238000005299 abrasion Methods 0.000 claims description 9
239000011651 chromium Substances 0.000 claims description 8
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
239000011572 manganese Substances 0.000 claims description 5
239000000654 additive Substances 0.000 claims description 4
230000007704 transition Effects 0.000 claims description 4
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
238000005452 bending Methods 0.000 claims description 3
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 2
238000007654 immersion Methods 0.000 claims description 2
239000011733 molybdenum Substances 0.000 claims description 2
239000010955 niobium Substances 0.000 claims description 2
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
238000004321 preservation Methods 0.000 claims description 2
GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
239000010936 titanium Substances 0.000 claims description 2
229910052719 titanium Inorganic materials 0.000 claims description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
239000010937 tungsten Substances 0.000 claims description 2
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
239000000110 cooling liquid Substances 0.000 claims 1
238000005275 alloying Methods 0.000 abstract description 2
229910000640 Fe alloy Inorganic materials 0.000 abstract 3
238000007792 addition Methods 0.000 abstract 2
229910000831 Steel Inorganic materials 0.000 description 8
239000010959 steel Substances 0.000 description 8
229910001562 pearlite Inorganic materials 0.000 description 7
229910000859 α-Fe Inorganic materials 0.000 description 5
230000008901 benefit Effects 0.000 description 4
238000010586 diagram Methods 0.000 description 4
238000009792 diffusion process Methods 0.000 description 4
238000010438 heat treatment Methods 0.000 description 4
125000004429 atom Chemical group 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 3
238000005516 engineering process Methods 0.000 description 3
150000001247 metal acetylides Chemical class 0.000 description 3
230000006911 nucleation Effects 0.000 description 3
238000010899 nucleation Methods 0.000 description 3
239000000126 substance Substances 0.000 description 3
239000004411 aluminium Substances 0.000 description 2
230000006872 improvement Effects 0.000 description 2
238000011835 investigation Methods 0.000 description 2
238000012360 testing method Methods 0.000 description 2
PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000002411 adverse Effects 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
230000008859 change Effects 0.000 description 1
238000005352 clarification Methods 0.000 description 1
238000011109 contamination Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000009826 distribution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000007656 fracture toughness test Methods 0.000 description 1
230000002631 hypothermal effect Effects 0.000 description 1
238000009863 impact test Methods 0.000 description 1
230000000977 initiatory effect Effects 0.000 description 1
238000007726 management method Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
238000000386 microscopy Methods 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
235000019362 perlite Nutrition 0.000 description 1
239000010451 perlite Substances 0.000 description 1
238000010792 warming Methods 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
229910052845 zircon Inorganic materials 0.000 description 1
GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1

Images

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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
- 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
- C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
- 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

Definitions

the invention relates to a profiled rolling stock, in particular driving or Railway rail, made of an iron-based alloy containing carbon, silicon, Manganese, possibly chromium, special carbide-forming and that Conversion behavior of the material influencing elements and / or Micro alloy additives, remainder iron and manufacturing-related and usual Contamination with at least partially through the cross section accelerated cooling from the austenite area of the alloy Structure.
the invention further comprises a method for producing profiled Rolled material, in particular from running or railroad tracks, from one Iron-based alloy with at least partially through the cross section accelerated cooling from the austenite area of the alloy Microstructure, with at least parts of the surface of the rolling stock with coolant applied or introduced into this.
Rolled material can be of various types as a component, depending on the respective use be loaded, due to the general material properties in the highest individual stress is the dimensioning of the part demands and / or determines its durability. Technically and also economically it can be an advantage if the property profile of the component matches the Requirements adapted to this or, if corresponding to the pronounced Individual loads on the part of this specifically particularly high Has material properties.
the rails should have high wear resistance in the head area or on the surface supporting the wheels and on the other hand, the Bending stress in the track because of high toughness, strength and Have breakage resistance in the remaining cross-sectional area.
AT-399346 -B is a process for meeting these requirements known in which the rail head from the austenite area of the alloy in a coolant having a synthetic coolant additive up to one Submerged surface temperature between 450 ° C and 550 ° C and then is applied, which results in a fine pearlitic structure with increased Material hardness is formed.
EP 441166-A discloses a device which is simple to immerse the Rail head into a plunge pool containing a coolant.
Another method for forming a stable pearlite structure in rails is from EP-186373 -B1, in which method essentially a nozzle arrangement for a coolant for accelerated cooling of the rail used and the distance between the nozzle arrangement and the rail head in Dependence on the hardness value to be achieved for the rail head and the Carbon equivalent of the steel is set.
a method and an apparatus for performing the method for The heat treatment of profiled rolling stock, in particular of rails is the EP-693562-A, in particular in the rail head fine pearlitic structure with increased hardness and abrasion resistance is formed.
a Another method for creating a fine pearlitic structure in the Head area of the rail is disclosed in EP-293002. The Rail head cooled by hot water jets up to 420 ° C and then treated with an air stream.
a splint with high wear resistance on the head and high break resistance in the According to EP-136613-A or DE-33 36 006-A, foot is achieved by a method, in which the rail after rolling and cooling in air at 810 to 890 Austenitized and then accelerated cooling. The Cooling in such a way that a fine pearlitic structure in the area of the head and in A martensitic structure is created in the area of the foot, which subsequently is started.
a rolling stock with advantageous mechanical properties preferably a track or rail with high abrasion resistance, especially the Head, and high toughness of the remaining areas is according to the State of the art in setting a fine pearlitic structure and an intermediate stage structure or bainite structure, possibly with martensite components, to avoid.
a carbide-free bainitic steel with high abrasion resistance and improved Resistance to contact fatigue has become known from WO 96/22396.
high silicon and / or aluminum contents of 1.0 to 3.0% by weight in one low-alloyed - 0.05 to 0.5% by weight of carbon and 0.5 to 2.5% by weight
Steel containing manganese and 0.25 to 2.5% by weight of chromium is said to be in the rolling stock by continuously cooling from the rolling temperature a substantially carbide-free microstructure of the type "upper bainite", that is a mixed structure bainitic ferrite, residual austenite and high carbon martensite will.
upper bainite that is a mixed structure bainitic ferrite
residual austenite and high carbon martensite will be formed Fold martensite and / or a so-called deforming martensite, whereby the risk of crack initiation is increased at the phase boundaries.
the invention seeks to remedy the problem and aims to create a high profile Rolled stock, especially a rail, with an optimal combination of high Abrasion resistance or high wear resistance with increased toughness and Specify material hardness and resistance to contact fatigue.
the advantages achieved by the invention are, in particular, that how was found, a rolling stock with a structure corresponding to one Conversion in the lower intermediate stage significantly improved mechanical Has properties.
the prerequisites for this are strictly limited Silicon and / or aluminum content of the material. Higher silicon and / or Aluminum concentrations act in low-alloy iron-based materials strangling on the gamma area in the state of the substance system, so that a largely complete transformation of the structure of austenite in the area of lower intermediate stage only with contents of silicon in% by weight of MAX 0.93 and Aluminum of MAX 0.06 and silicon plus aluminum below 0.99 is made possible.
the iron-based alloy essentially contains the elements in% by weight of carbon 0.41 to 1.3, preferably 0.51 to 0.98 Manganese 0.31 to 2.55, preferably 0.91 to 1.95 Iron as the rest.
the mechanical property values of the rolling stock can be further increased or improved if the iron-based alloy also contains the elements in% by weight chromium 0.21 to 2.45, preferably 0.38 to 1.95 possibly Molybdenum up to 0.88, preferably up to 0.49 Tungsten up to 1.69, preferably up to 0.95 Vanadium up to 0.39, preferably up to 0.19, further Niobium and / or tantalum and / or zircon and / or hafnium and / or titanium individually or in total up to 0.28, preferably up to 0.19, and Nickel up to 2.4, preferably up to 0.95 Boron to 0.006, preferably 0.004 having.
the iron-based alloy has the elements silicon, aluminum and carbon in such concentrations that the value formed from 2.75 times% silicon and / or aluminum minus% carbon is equal to or less than 2.2.
the strongly ferrite-forming elements, Si and Al, and the effective austenite-forming element C are advantageously kinetically assigned to one another or matched to one another.
a profiled rolling stock in particular railroad track consisting of a rail head, a rail foot and a connecting these areas Web, in which at least in a region of the cross section, in particular in the Head of the rail in the lower intermediate stage or in the lower bainite range formed structure a depth of at least 10 mm, preferably of at least 15 mm from the surface can also be particularly high load-bearing surface areas provide outstanding stability.
the profiled rolling stock in or in the area (s) with a lower intermediate stage or lower bainite structure a hardness of at least 350 HB, preferably of has at least 400 HB, in particular from 420 to 600 HB.
the further object of the invention is in a method of the aforementioned Kind solved in that the composition of the alloy within narrow limits selected their conversion behavior when cooling from the area of face - centered cubic atomic structure or from the austenite area and the rolling stock is produced from the selected alloy, after which in Longitudinal direction at least parts of the cross section of the rolling stock from the Austenite area to a temperature between the martensite point of the alloy and one by a maximum of 250 ° C, preferably by a maximum of 190 ° C, value exceeding, in particular to a temperature in the range of 5 ° C to Cooled to 110 ° C above the martensite point and the structure in essentially isothermally converted.
the advantages achieved with the method according to the invention are essentially to see that a precise manufacturing and quality planning for the profiled Rolled stock can be created, taking into account its mechanical properties are significantly improved.
it can be an inexpensive chemical Alloy composition, which at most the required property profile of the product, can be selected, on the other hand it is possible to accurate comprehensive generation and heat treatment technology prescribe or apply. This is important because of the conversion processes when cooling from the austenite area of the alloy not only from the The composition of the same also from the height of the final rolling and / or Austenitizing temperature, the germ state and the Nucleation speed for phases or the flip mechanism depend.
the invention Configurable temperature control On the basis of the respective conversion behavior or Martensite start temperature of the material for one in practical production given or adjustable state, is the invention Configurable temperature control.
Transformation of the structure essentially isothermal in a temperature range at most PLUS-MINUS 110 ° C, preferably at most PLUS-MINUS 60 ° C.
At least part of the cross section of the profiled rolling stock with increased mass concentration of an accelerated Cooling is subjected to a favorable uniform cooling based on the longitudinal axis of the rolling stock can be reached.
the uniformity of the cooling over the cross section can further, in particular with rail profiles, be improved if the rolling stock in a first step fully immersed in a coolant after reaching one Temperature of a surface area of at least 2 ° C, but especially about 160 ° C above the martensite point of the alloy from the coolant at least partially spread and in a second step only the area with If necessary, leave the high mass concentration temporarily in the immersion bath or in this is brought in temporarily.
the method according to the invention can be used particularly advantageously if railway tracks, especially for high-performance lines, with high Abrasion resistance or high wear resistance, high toughness and low Contact fatigue can be produced with a high specific load, whereby after the rolling and at least partial thermal adjustment of a structure lower intermediate stage a subsequent straightening process, in particular Bending straightening process at room temperature or slightly elevated temperature, for Preservation of the special material properties with stable alignment of the Rail is performed.
a rolling stock with an essentially H-shaped profile should be produced with a hardness between 550 and 600 HV and the highest possible toughness.
Dilatometer testing was used to create continuous time-temperature conversion diagrams (cont. ZTU diagrams) at austenitizing temperatures of 860 ° C (Fig. 1); 950 ° C; and 1050 ° C (Fig.
Samples of the aforementioned alloy which are at a temperature of 860 ° C (Fig. 3) accelerated cooled and according to the invention between 350 ° C and 300 ° C ( see arrow), i.e. 155 ° C or 105 ° C above the martensite point were reproducibly produced a material hardness of 550 to 600 HV, a homogeneous structure of the lower intermediate stage and significantly increased Material toughness values.
the rail cooled in this way was then placed in an oven or a Warming chamber with a temperature in the range of 340 ° C, allowed to convert and subsequently cooled to room temperature.

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Mechanical Engineering (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Heat Treatment Of Articles (AREA)
Metal Rolling (AREA)
Heat Treatment Of Steel (AREA)
Shaping Metal By Deep-Drawing, Or The Like (AREA)
Powder Metallurgy (AREA)
Forging (AREA)
Bending Of Plates, Rods, And Pipes (AREA)
Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Rolls And Other Rotary Bodies (AREA)
Formation And Processing Of Food Products (AREA)
Laminated Bodies (AREA)
Golf Clubs (AREA)
Ceramic Capacitors (AREA)
Superconductors And Manufacturing Methods Therefor (AREA)

EP97890249A 1996-12-19 1997-12-16 Laminé profilé et procédé pour sa fabrication Revoked EP0849368B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SI9730643T SI0849368T1 (en)	1996-12-19	1997-12-16	Shaped rolled product and method of making the same

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AT222296		1996-12-19
AT2222/96		1996-12-19
AT0222296A AT407057B (de)	1996-12-19	1996-12-19	Profiliertes walzgut und verfahren zu dessen herstellung

Publications (2)

Publication Number	Publication Date
EP0849368A1 true EP0849368A1 (fr)	1998-06-24
EP0849368B1 EP0849368B1 (fr)	2004-04-28

Family

ID=3530300

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97890249A Revoked EP0849368B1 (fr)	1996-12-19	1997-12-16	Laminé profilé et procédé pour sa fabrication

Country Status (19)

Country	Link
US (1)	US6086685A (fr)
EP (1)	EP0849368B1 (fr)
JP (1)	JP4039474B2 (fr)
CN (1)	CN1101856C (fr)
AT (2)	AT407057B (fr)
AU (1)	AU728635B2 (fr)
BR (1)	BR9706423A (fr)
CA (1)	CA2225240C (fr)
CZ (1)	CZ295574B6 (fr)
DE (1)	DE59711569D1 (fr)
DK (1)	DK0849368T3 (fr)
ES (1)	ES2216123T3 (fr)
HU (1)	HU220124B (fr)
PL (1)	PL184601B1 (fr)
PT (1)	PT849368E (fr)
RO (1)	RO119237B1 (fr)
RU (1)	RU2136767C1 (fr)
SI (1)	SI0849368T1 (fr)
UA (1)	UA41454C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1999009222A1 (fr) *	1997-08-14	1999-02-25	Bwg Butzbacher Weichenbau Gesellschaft Mbh & Co. Kg	Procede de fabrication d'un element de voie a resistance elevee, et element de voie ainsi obtenu
WO2001011096A1 (fr) *	1999-08-04	2001-02-15	Qinetiq Limited	Acier bainitique ameliore
WO2016028174A1 (fr) *	2014-08-18	2016-02-25	Politechnika Warszawska	Procédé de formation d'une structure nanocristalline dans l'acier à roulements commercial

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* Cited by examiner, † Cited by third party
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US6632301B2 (en)	2000-12-01	2003-10-14	Benton Graphics, Inc.	Method and apparatus for bainite blades
US6783610B2 (en) *	2001-03-05	2004-08-31	Amsted Industries Incorporated	Railway wheel alloy
BRPI0409179A (pt)	2003-04-04	2006-05-02	Unigen Pharmaceuticals Inc	formulação de inibidores duplos de ciclooxigenase (cox) e lipoxigenase (lox) para cuidados com a pele de mamìferos
JP4469248B2 (ja) *	2004-03-09	2010-05-26	新日本製鐵株式会社	耐摩耗性および延性に優れた高炭素鋼レールの製造方法
CN100392140C (zh) *	2006-08-03	2008-06-04	燕山大学	铁路辙叉专用含钨铝贝氏体锻钢及其制造方法
DE102006059050A1 (de) *	2006-12-14	2008-06-19	Schaeffler Kg	Verfahren zur Wärmebehandlung von Wälzlagerbauteilen aus durchgehärtetem, bainitischem Wälzlagerstahl
DE102007024797A1 (de) *	2007-05-26	2008-11-27	Linde + Wiemann Gmbh Kg	Verfahren zur Herstellung eines Profilbauteils, Profilbauteil und Verwendung eines Profilbauteils
CA2732188A1 (fr) *	2008-07-31	2010-02-04	The Secretary Of State For Defence	Acier bainitique et ses procedes de fabrication
CA2734980C (fr) *	2008-10-31	2014-10-21	Nippon Steel Corporation	Rail de perlite presentant une resistance a l'abrasion superieure et une excellente tenacite
JP5483859B2 (ja) *	2008-10-31	2014-05-07	臼井国際産業株式会社	焼入性に優れた高強度鋼製加工品及びその製造方法、並びに高強度かつ耐衝撃特性及び耐内圧疲労特性に優れたディーゼルエンジン用燃料噴射管及びコモンレールの製造方法
ES2554854T3 (es)	2009-02-18	2015-12-23	Nippon Steel & Sumitomo Metal Corporation	Raíl perlítico con resistencia al desgaste y tenacidad excelentes
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RU2476617C1 (ru) *	2009-08-18	2013-02-27	Ниппон Стил Корпорейшн	Перлитные рельсы
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- 1997-12-16 DK DK97890249T patent/DK0849368T3/da active
- 1997-12-16 EP EP97890249A patent/EP0849368B1/fr not_active Revoked
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- 1997-12-18 CZ CZ19974111A patent/CZ295574B6/cs not_active IP Right Cessation
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WO1999009222A1 (fr) *	1997-08-14	1999-02-25	Bwg Butzbacher Weichenbau Gesellschaft Mbh & Co. Kg	Procede de fabrication d'un element de voie a resistance elevee, et element de voie ainsi obtenu
WO2001011096A1 (fr) *	1999-08-04	2001-02-15	Qinetiq Limited	Acier bainitique ameliore
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WO2016028174A1 (fr) *	2014-08-18	2016-02-25	Politechnika Warszawska	Procédé de formation d'une structure nanocristalline dans l'acier à roulements commercial

Also Published As

Publication number	Publication date
HU220124B (hu)	2001-11-28
CZ411197A3 (cs)	1999-05-12
PT849368E (pt)	2004-09-30
US6086685A (en)	2000-07-11
UA41454C2 (uk)	2001-09-17
BR9706423A (pt)	1999-08-10
HU9702498D0 (en)	1998-03-02
PL184601B1 (pl)	2002-11-29
CN1101856C (zh)	2003-02-19
RU2136767C1 (ru)	1999-09-10
AT407057B (de)	2000-12-27
HUP9702498A3 (en)	2000-03-28
EP0849368B1 (fr)	2004-04-28
ATA222296A (de)	2000-04-15
AU728635B2 (en)	2001-01-11
CN1185359A (zh)	1998-06-24
ES2216123T3 (es)	2004-10-16
RO119237B1 (ro)	2004-06-30
PL323703A1 (en)	1998-06-22
SI0849368T1 (en)	2004-08-31
ATE265549T1 (de)	2004-05-15
DK0849368T3 (da)	2004-08-30
JP4039474B2 (ja)	2008-01-30
JPH10195604A (ja)	1998-07-28
DE59711569D1 (de)	2004-06-03
CA2225240C (fr)	2010-03-16
CZ295574B6 (cs)	2005-08-17
AU4848597A (en)	1998-06-25
CA2225240A1 (fr)	1998-06-19
HUP9702498A2 (hu)	1998-07-28

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