US20040069858A1 - Steel rails' joint fishplate made of xy30 steel - Google Patents

Steel rails' joint fishplate made of xy30 steel Download PDF

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Publication number
US20040069858A1
US20040069858A1 US10/468,343 US46834303A US2004069858A1 US 20040069858 A1 US20040069858 A1 US 20040069858A1 US 46834303 A US46834303 A US 46834303A US 2004069858 A1 US2004069858 A1 US 2004069858A1
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US
United States
Prior art keywords
rail clip
working
circular arc
steel
working surface
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.)
Abandoned
Application number
US10/468,343
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English (en)
Inventor
Fei Tan
Renzhen Song
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20040069858A1 publication Critical patent/US20040069858A1/en
Abandoned legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to a rail clip, which is an important fitting part for the railway made of a new steel XY30 and one of a high-manganese steel without nickel and having high strength and high toughness even if it is used in the low-temperature circumstance.
  • the rail clip is used to joint railroad rails made of the steel XY30 in the low-temperature circumstance, which is an important fitting part to the railway, so the technical properties are strictly prescribed.
  • the rail clip for the railway is made of steel B 7 in accordance with the Railway Standard TB/T2342.1 ⁇ 4-93 being enacted by the railroad department of the People's Republic of China and entered into force in China in 1993.
  • the chemistry composition of the steel B 7 is as following:
  • the steel B 7 is only suitable for the normal temperature to ⁇ 20° C.
  • the steel B 7 is apt to rupture when it is used under a low temperature, so that the railway is adversely affected due to rupture failures which are often occurring at trunk railways since there is a great deal of temperature differences among provinces.
  • Recently the steel B 7 no longer satisfies the requirement necessary for the rail clip since the mechanical properties of the rail clip should be improved to match the increasing speed of the railway communication.
  • the object of the present invention is to provide a rail clip used for railway and made of the steel XY30, the rail clip has improved low temperature properties, e.g. high strength and toughness under a low temperature.
  • the present invention provides a steel which is based on a high manganese steel into which appropriate amount of Mo (molybdenum) and V (vanadium), Nb (Niobium), Al (Aluminum) and rare earth element in minute quantities are added.
  • the rail clip or joint bar made of the steel XY30 according to present invention is as following.
  • the rail clip according to present invention is characterized in that the rail clip is made of the steel XY30, the chemistry composition of the steel XY30 is as following (%): C: 0.28 ⁇ 0.34, 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; the rail clip has a shape of a bar with a section of “ T ”, the rail clip comprising: a working surface, a non-working surface, a mounting surface for mounting bolts and a non-working surface inside a web plate; a small circular arc is provided on the working surface which is on an upper small surface side on the same side of the rail clip; the upper small surface, a lower large surface and the non-working surface inside the web plate are connected with circular arcs; upper and lower non-working surfaces on the other
  • the rail clip being an important fitting part for the railway made of the steel XY30 and used for rails according to present invention is designed for the rails of the high-speed railway.
  • the strength and toughness of the rail clip of the present invention under a low temperature are increased since the rail clip is made of the steel XY30.
  • the rail clip can be used under the temperature of ⁇ 60 ⁇ 30° C. with high strength and toughness and without crack and rupture, and the service life of the rail clip is increased by 1.5 ⁇ 2 times. Therefore, the rail clip is adapted to rails used in the developing high-speed railway.
  • FIG. 1 is a schematic view showing the working surface structure of the rail clip made of steel XY30 for railroad rails according to present invention; where 1 —a working surface of the rail clip for railroad rails; 2 —a non-working surface; 3 —a working surface for bolts; 4 —a non-working surface inside a web plate.
  • the rail clip made of steel XY30 for railroad rails according to present invention is achieved as following, the chemistry composition of the steel XY30 is as following (%): C: 0.28 ⁇ 0.34, 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.
  • the rail clip has a shape of a bar with a section of “ T ”, the rail clip comprising: a working surface 1 , a non-working surface 2 , a mounting surface for bolts 3 and a non-working surface inside a web plate 4 .
  • the two working surfaces 1 on an upper small surface side and a lower large surface side on the same side of the rail clip come into circular arc point contact with the railroad rail.
  • the contacting circular arcs of the working surfaces of the upper small surface have a radius of R 2 ⁇ R19.05 mm and a radius of R 1 ⁇ R9.526 mm, respectively, while the contacting circular arcs of the working surfaces of the lower large surface have a radius of R 6 ⁇ R355.6 mm and a radius of R 5 ⁇ R10.05 mm, respectively.
  • the connecting circular arc connecting the upper small surface with the non-working surface inside the web plate 4 has a radius of R 3 ⁇ R25.4 mm, the connecting circular arc connecting the lower large surface with the non-working surface inside the web plate 4 have a radius of R 4 ⁇ R14.287 mm.
  • a small circular arc is provided at the center along the length of the working surface of the upper small surface (that is, along the direction perpendicular to the cross section shown in the FIG. 1).
  • the small circular arc has a width of 54.9 mm along the length of the working surfaces of the upper small surface, and a radius of R101.6 mm perpendicular to the working surfaces of the upper small surface, a depth of 1.190 mm with respect to the working surfaces of the upper small surface.
  • the small circular arc is extended from the center of the circular arc corresponding to the R 1 , to its point of tangency where the small circular arc is tangental to the circular arc corresponding to the R 3 , via the circular arc corresponding to the R 2 .
  • the small circular arc is located at the gap between the joint ends of two rails when the rails are installed, so that the shearing force of the cross section can be eliminated when the joint ends of two rails are bend downwards.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Metal Rolling (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Heat Treatment Of Articles (AREA)
  • Clamps And Clips (AREA)
  • Connection Of Plates (AREA)
US10/468,343 2001-12-13 2002-12-13 Steel rails' joint fishplate made of xy30 steel Abandoned US20040069858A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN01138833.1 2001-12-13
CNB011388331A CN1164786C (zh) 2001-12-13 2001-12-13 Xy30无镍高锰钢及其应用
PCT/CN2002/000889 WO2003050357A1 (fr) 2001-12-13 2002-12-13 Eclisse pour rails en acier constituee d'acier xy30

Publications (1)

Publication Number Publication Date
US20040069858A1 true US20040069858A1 (en) 2004-04-15

Family

ID=4674793

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/468,343 Abandoned US20040069858A1 (en) 2001-12-13 2002-12-13 Steel rails' joint fishplate made of xy30 steel

Country Status (4)

Country Link
US (1) US20040069858A1 (zh)
CN (1) CN1164786C (zh)
AU (1) AU2002354151A1 (zh)
WO (1) WO2003050357A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080237363A1 (en) * 2004-07-13 2008-10-02 Georg Hauschild System For Fastening A Rail for A Rail Vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102634728A (zh) * 2012-04-28 2012-08-15 首钢贵阳特殊钢有限责任公司 一种Fe-Mn-C系高锰钢的小方坯连铸生产工艺
CN103008401A (zh) * 2012-12-21 2013-04-03 鞍钢股份有限公司 一种回火处理后钢板的矫直方法
CN103643124B (zh) * 2013-11-20 2015-09-16 江苏天舜金属材料集团有限公司 一种600MPa级以上高强钢筋连接套筒的加工方法

Citations (3)

* Cited by examiner, † Cited by third party
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
US5906791A (en) * 1997-07-28 1999-05-25 General Electric Company Steel alloys

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4099613B2 (ja) * 1999-03-04 2008-06-11 西日本旅客鉄道株式会社 レール摩耗測定定規及びこれを用いたレールの継目構造の施工方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
US5906791A (en) * 1997-07-28 1999-05-25 General Electric Company Steel alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080237363A1 (en) * 2004-07-13 2008-10-02 Georg Hauschild System For Fastening A Rail for A Rail Vehicle
US7854392B2 (en) * 2004-07-13 2010-12-21 Vossloh-Werke Gmbh System for fastening a rail for a rail vehicle

Also Published As

Publication number Publication date
WO2003050357A1 (fr) 2003-06-19
CN1164786C (zh) 2004-09-01
AU2002354151A1 (en) 2003-06-23
CN1363711A (zh) 2002-08-14

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