CN1363711A - XY30 steel and its application - Google Patents
XY30 steel and its application Download PDFInfo
- Publication number
- CN1363711A CN1363711A CN01138833A CN01138833A CN1363711A CN 1363711 A CN1363711 A CN 1363711A CN 01138833 A CN01138833 A CN 01138833A CN 01138833 A CN01138833 A CN 01138833A CN 1363711 A CN1363711 A CN 1363711A
- Authority
- CN
- China
- Prior art keywords
- steel
- temperature
- clamping plate
- water
- railway
- 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 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000010791 quenching Methods 0.000 claims description 9
- 238000007669 thermal treatment Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 241001062472 Stokellia anisodon Species 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 241001669679 Eleotris Species 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 230000003137 locomotive effect Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000011572 manganese Substances 0.000 description 6
- 239000010955 niobium Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000012360 testing method Methods 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/10—Fishplates with parts supporting or surrounding the rail foot
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Metal Rolling (AREA)
- Clamps And Clips (AREA)
- Connection Of Plates (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Joining Of Building Structures In Genera (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A XY30 steel for railway contains C (0.28-0.35%), Mn (1.30-1.50), Si (0.15-0.35), P (less than 0.030), S (less than 0.030), Mo (0.25-0.35) V (0.10-0.25), Al (0.015), Nb (0.05-0.10), Re (0.040-0.20) and Cu (less than 0.20). It is based on the high-Mn steel and features high low-temp strength and toughness.
Description
Technical field patent of the present invention relates to a kind of new steel grade with good low temperature intensity and flexible non-Ni high manganese steel---XY30 steel and application thereof.
Background technology XY30 steel of the present invention is developed with joint bar at the low temperature rail.The rail joint bar is the important accessory of railway, and technical feature is strict, the domestic iron mark that the Ministry of Railways formulates, TB/T2342.1～4-93, the employing B of carrying out after 1993
7Steel is done.
Its Chemical Composition is (%):
B
7Steel: C 0.50～0.62, Mn 0.50～0.80, Si 0.15～0.35, P＜0.045, S＜0.050.
Mechanical property is after this steel thermal treatment:
B
7Steel: tensile strength б
b〉=785MPa, yield strength б
s〉=520MPa, elongation δ
s〉=9%, relative reduction in area 〉=20%, Brinell hardness HB 227～338,30 ° at clod wash angle are intact.
USS about the railway casting rail with the mechanical property of technical acceptance under the connector clamp slab regulation normal temperature is:
Tensile strength б
b〉=690 MPa, yield strength б
s〉=480MPa, elongation δ
s〉=12%, relative reduction in area 〉=28%, clod wash angle d=3a, 180 ° are intact.
Domesticly in secular application in practice, prove B
7Steel is only applicable to use under the situation of normal temperature～-20 ℃, because China is vast in territory, regional difference variation is bigger, B
7Steel is easy fracture under cold condition, so fracture accident often takes place on trunk railway, has influenced the normal operation of traffic.At present, because the continuous speed-raising of railway is the demands for higher performance of rail with the connector clamp slab, B
7Steel no longer is suitable for the requirement of growing railway casting rail with the connector clamp slab.
Summary of the invention XY30 steel of the present invention is based on high mangaenese steel, reducing the element that influences low-temperature performance: under the situation of carbon, phosphorus, silicon, increased and eliminated the temper brittleness molybdenum that thermal treatment produces, and add an amount of trace element: vanadium, aluminium, Niobium and rare earth element improve the low-temperature performance of steel, and a kind of new steel grade that is applicable to that the growing railway casting rail of China requires with the connector clamp slab of succeeding in developing.
XY30 steel of the present invention is to smelt modified new steel grade rolling and that thermal treatment process obtains by chemical composition design, and it is characterized in that: the Chemical Composition of XY30 steel is (%):
C?0.28～0.35、Mn?1.30～1.50、Si?0.15～0.35、P＜0.030、S＜0.030、Mo?0.25～0.35、V?0.10～0.25、Al?0.015、Nb?0.05～0.10、Re?0.040～0.20、Cu＜0.20。
Thermal treatment process is:
(1), heating: at first will heat through the straight strap clamp slab material shove charge of the single multiple length after rolling, the steel temperature of coming out of the stove is 850～860 ℃;
(2), quench: the clamping plate steel after the punching quenches, and the water tank water temperature is 75～85 ℃, and high-temperature water is thick for the quenched martensite crystal grain of alleviating steel, and it is 830～850 ℃ that the clamping plate steel quenches into water temp, and the cool time is 43～48 seconds;
(3), tempering and cooling: when the clamping plate steel after the quenching was come out by the quenching water tank, the temperature of clamping plate steel was 600～640 ℃, and air cooling carries out auto-tempering on chain conveyor then, when below the steel temperature drop to 120 ℃, can enter cooling water tank, its water temperature is not limit, and the steel temperature is below 50 ℃ after the water outlet;
(4), cooled clamping plate steel carries out cold straightening, reconditioning processing, inspection packing.
XY30 steel of the present invention can be applicable to rail in high speed railway connector clamp slab.XY30 steel of the present invention is based on high mangaenese steel, reducing the element that influences low-temperature performance: under the situation of carbon, phosphorus, silicon, increased and eliminated the temper brittleness element aluminum that thermal treatment produces, and added an amount of trace element: vanadium, aluminium, Niobium and rare earth element improve the low-temperature performance of steel.Through the many places experiment, and utilize the rolling rail joint bar that is processed into of experiment steel ingot, warp is to sample detection
The mechanical property of XY30 steel in the time of+14 ℃:
Tensile strength б
b〉=785MPa, yield strength б
s〉=520MPa, elongation δ
s〉=13%, relative reduction in area 〉=30%, bending angle d=3a, 180 good, HB=230～388;
The mechanical property of XY30 steel in the time of-40 ℃:
Tensile strength б
b〉=730MPa, yield strength б
s〉=520MPa, elongation δ
s〉=13%, relative reduction in area 〉=30%, bending angle d=3a, 180 ° of good, ballistic work Akv (vertically) 〉=25J.Experimental results show that the XY30 product made from steel is functional under normal temperature, low temperature condition, is a kind of new steel grade that is applicable to that the growing rail in high speed railway of China requires with the connector clamp slab.
Embodiment XY30 steel of the present invention is to smelt new steel grade rolling and that thermal treatment process obtains by chemical composition design, has formed three groups of material prescriptions at the performance of element when trial-production, and the chemical ingredients of this three assembly side is (%):
(1), C 0.28, Mn 1.30, Si 0.15, P＜0.030, S＜0.030, Mo 0.25, V 0.10, Al 0.015, Nb 0.05, Re 0.04, Cu＜0.20.
(2), C 0.31, Mn 1.40, Si 0.22, P＜0.030, S＜0.030, Mo 0.29, V 0.16, Al 0.015, Nb 0.06, Re 0.10, Cu＜0.20.
(3), C 0.35, Mn 1.50, Si 0.35, P＜0.030, S＜0.030, Mo 0.35, V 0.25, Al 0.015, Nb 0.10, Re 0.20, Cu＜0.20.
Every assembly side produces 2 60kg steel ingots altogether, is swaged into bloom slab and is rolled into the vertical bar of rail with joint bar, cuts into single multiple length joint bar sample again and heat-treats.
The thermal treatment process of selecting for use is:
(1), heating: at first will heat through the straight strap clamp slab material shove charge of the single multiple length after rolling, the steel temperature of coming out of the stove is 860 ℃; Punching: the clamping plate steel carries out punching, makes railway casting rail connector clamp slab;
(2), quench: the clamping plate steel after the punching quenches, and the water tank water temperature is 80 ℃, and high-temperature water is thick for the quenched martensite crystal grain of alleviating steel, and it is 840 ℃ that the clamping plate steel quenches into water temp, and the cool time is 45 seconds;
(3), tempering and cooling: when the clamping plate steel after the quenching was come out by the quenching water tank, the temperature of clamping plate steel was 620 ℃, and air cooling carries out auto-tempering then.
XY30 steel of the present invention detects through sending " Ministry of Railways product quality supervision and inspection central metal Chemical Analysis station " through repeatedly testing the rolling railway track joint bar that is processed into,
The mechanical property of XY30 steel in the time of+14 ℃:
Tensile strength б
b〉=785MPa, yield strength б
s〉=520MPa, elongation δ
s〉=13%, relative reduction in area 〉=30%, bending angle d=3a, 180 ° are good;
The mechanical property of XY30 steel in the time of-40 ℃:
Tensile strength б
b〉=730MPa, yield strength б
s〉=520MPa, elongation δ
s〉=13%, relative reduction in area 〉=30%, in the time of-40 ℃ good, the ballistic work Akv (vertically) 〉=25J of bending angle d=3a, 180 °.Bending angle d=3a, 180 ° of good, ballistic work Akv (vertically) 〉=20J in the time of-50 ℃.Experimental results show that the XY30 product made from steel is functional under normal temperature, low temperature condition, is a kind of new steel grade that is applicable to that the growing rail in high speed railway of China requires with the connector clamp slab.The XY30 steel also can be applicable to other low temperature railway casting: the reinforcing bar of using as bolt, railway spike, pull bar, concrete sleeper, locomotive, for motor vehicle web member, rod member, axle class part or the like.
Claims (2)
1, a kind of XY30 steel is to smelt modified new steel grade rolling and that thermal treatment process obtains by chemical composition design, and it is characterized in that: its Chemical Composition is (%):
C?0.28～0.35、Mn?1.30～1.50、Si?0.15～0.35、P＜0.030、S＜0.030、Mo?0.25～0.35、V?0.10～0.25、Al?0.015、Nb?0.05～0.10、Re?0.040～0.20、Cu＜0.20。
Thermal treatment process is:
(1), heating: at first will heat through the straight strap clamp slab material shove charge of the single multiple length after rolling, the steel temperature of coming out of the stove is 850～860 ℃;
(2), quench: the clamping plate steel after the punching quenches, and the water tank water temperature is 75～85 ℃, and high-temperature water is thick for the quenched martensite crystal grain of alleviating steel, and it is 830～850 ℃ that the clamping plate steel quenches into water temp, and the cool time is 43～48 seconds;
(3), tempering and cooling: when the clamping plate steel after the quenching was come out by the quenching water tank, the temperature of clamping plate steel was 600～640 ℃, and air cooling carries out auto-tempering on chain conveyor then, when below the steel temperature drop to 120 ℃, can enter cooling water tank, its water temperature is not limit, and the steel temperature is below 50 ℃ after the water outlet;
(4), cooled clamping plate steel carries out cold straightening, reconditioning processing, inspection packing.
2, XY30 steel according to claim 1, it is characterized in that: the XY30 steel can be applicable to rail in high speed railway connector clamp slab, also can be applicable to other low temperature railway casting steel, as: the reinforcing bar that bolt, railway spike, pull bar, concrete sleeper are used, locomotive, for motor vehicle web member, rod member, axle class part.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011388331A CN1164786C (en) | 2001-12-13 | 2001-12-13 | XY30 steel and its application |
| US10/468,343 US20040069858A1 (en) | 2001-12-13 | 2002-12-13 | Steel rails' joint fishplate made of xy30 steel |
| PCT/CN2002/000889 WO2003050357A1 (en) | 2001-12-13 | 2002-12-13 | The steel rails' joint fishplate made of xy30 steel |
| AU2002354151A AU2002354151A1 (en) | 2001-12-13 | 2002-12-13 | The steel rails' joint fishplate made of xy30 steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011388331A CN1164786C (en) | 2001-12-13 | 2001-12-13 | XY30 steel and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363711A true CN1363711A (en) | 2002-08-14 |
| CN1164786C CN1164786C (en) | 2004-09-01 |
Family
ID=4674793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011388331A Expired - Fee Related CN1164786C (en) | 2001-12-13 | 2001-12-13 | XY30 steel and its application |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040069858A1 (en) |
| CN (1) | CN1164786C (en) |
| AU (1) | AU2002354151A1 (en) |
| WO (1) | WO2003050357A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634728A (en) * | 2012-04-28 | 2012-08-15 | 首钢贵阳特殊钢有限责任公司 | Small square Billet continuous casting production technique of Fe-Mn-C high-manganese steel |
| CN103008401A (en) * | 2012-12-21 | 2013-04-03 | 鞍钢股份有限公司 | Straightening method of tempered steel plate |
| CN103643124A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Processing method of above-600MPa-grade high-strength steel bar connection sleeve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004033724B3 (en) * | 2004-07-13 | 2005-10-27 | Vossloh-Werke Gmbh | System for fastening a rail for rail vehicles |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877641A (en) * | 1973-10-01 | 1975-04-15 | Joseph Rolland Plourde | Rail fish joint and method of making the same |
| US5077006A (en) * | 1990-07-23 | 1991-12-31 | Carondelet Foundry Company | Heat resistant alloys |
| US5100613A (en) * | 1990-10-16 | 1992-03-31 | Bethlehem Steel Co. | Hot-rolled microalloyed steel and its use in variable-thickness sections |
| AU663023B2 (en) * | 1993-02-26 | 1995-09-21 | Nippon Steel Corporation | Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance |
| US5906791A (en) * | 1997-07-28 | 1999-05-25 | General Electric Company | Steel alloys |
| JP4099613B2 (en) * | 1999-03-04 | 2008-06-11 | 西日本旅客鉄道株式会社 | Rail wear measuring ruler and method of construction of rail joint structure using the same |
-
2001
- 2001-12-13 CN CNB011388331A patent/CN1164786C/en not_active Expired - Fee Related
-
2002
- 2002-12-13 WO PCT/CN2002/000889 patent/WO2003050357A1/en not_active Application Discontinuation
- 2002-12-13 AU AU2002354151A patent/AU2002354151A1/en not_active Abandoned
- 2002-12-13 US US10/468,343 patent/US20040069858A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634728A (en) * | 2012-04-28 | 2012-08-15 | 首钢贵阳特殊钢有限责任公司 | Small square Billet continuous casting production technique of Fe-Mn-C high-manganese steel |
| CN103008401A (en) * | 2012-12-21 | 2013-04-03 | 鞍钢股份有限公司 | Straightening method of tempered steel plate |
| CN103643124A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Processing method of above-600MPa-grade high-strength steel bar connection sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040069858A1 (en) | 2004-04-15 |
| CN1164786C (en) | 2004-09-01 |
| AU2002354151A1 (en) | 2003-06-23 |
| WO2003050357A1 (en) | 2003-06-19 |
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