EP0716185B1 - Verfahren zur Herstellung einer Herzstückspitze sowie Herzstückspitze - Google Patents

Verfahren zur Herstellung einer Herzstückspitze sowie Herzstückspitze Download PDF

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Publication number
EP0716185B1
EP0716185B1 EP95118492A EP95118492A EP0716185B1 EP 0716185 B1 EP0716185 B1 EP 0716185B1 EP 95118492 A EP95118492 A EP 95118492A EP 95118492 A EP95118492 A EP 95118492A EP 0716185 B1 EP0716185 B1 EP 0716185B1
Authority
EP
European Patent Office
Prior art keywords
rail sections
point
rail
steel
frog
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
Application number
EP95118492A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0716185A1 (de
Inventor
Gerhard Ratz
Stefan Dipl.-Ing. Schmedders
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 Turnout Technology Germany GmbH
Original Assignee
Voestalpine BWG GmbH
Butzbacher Weichenbau 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.)
Filing date
Publication date
Application filed by Voestalpine BWG GmbH, Butzbacher Weichenbau GmbH filed Critical Voestalpine BWG GmbH
Publication of EP0716185A1 publication Critical patent/EP0716185A1/de
Application granted granted Critical
Publication of EP0716185B1 publication Critical patent/EP0716185B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • 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
    • C21D2251/00—Treating composite or clad material

Definitions

  • the invention relates to a method for producing a frog tip Tip section such as block tip and welded connecting rail sections, the Tip section and the connecting rail sections made of different types of steel exist, and wherein the tip section and the connecting rail sections after undergo a common heat treatment during their welding.
  • the invention relates to a frog tip with a tip section such as a block tip and welded connecting rail sections, the tip section and the Connection rail sections consist of different types of steel, and the Tip section and the connecting rail sections after their welding one are subjected to common heat treatment.
  • the individual parts are tempered before welding. Because of the different However, undefined heat transfer zones form in the area of the welding surfaces from those in the areas of not clearly defined or desired Material properties such as tensile strength, flexural fatigue strength, yield strength or fracture toughness to lead.
  • a frog with a block-like frog tip is known for the tip part a steel of analysis 0.55% C, 0.32% Si, 1.5% Mn, 0.34% Mo, 0.1% V and for the connector a steel of analysis 0.55% C, 0.32% Si, 1.5% Mn is used and the entire centerpiece tip after welding Tip part and connector including the weld joint is oil-coated.
  • a joint remuneration for core sections can also be found in BE 702 087.
  • the present invention is based on the problem of a method for producing a Centerpiece tip and such to develop itself such that after welding Defined material properties are ensured without the need for complex manufacturing technology Actions are required.
  • the problem is solved by a method of the type mentioned at the outset solved that the heat treatment of the terminal rail sections and the tip section is made as a unit such that the tip section is martensitic and the connecting bar sections pearlitic structure.
  • a centerpiece tip of the type described above is characterized by that the centerpiece tip and the connecting rail sections have been tempered as a unit, the Tip section martensitic structure and the connecting rail sections pearlitic structure and in their welded superimposed surfaces merge into one another.
  • the tip section in the form of a block tip welded to the geometric Adaptation to the welding surfaces of the connecting rail sections is worked out.
  • the material of the connecting rail sections is a steel with an analysis at least 0.73 to 0.79 weight percent C, 0.86 - 0.00 weight percent Mn, 0.21 to 0.32 Weight percent Si, 0.07 to 0.025 weight percent P, 0.008 to 0.022 weight percent S, 0.02 to 0.14 percent by weight Cr and 0.000 percent by weight Nb as well as usual melting-related Impurities.
  • the material of the tip section is preferably a vacuum-treated one Steel with at least 0.53 to 0.62 weight percent C, 0.15 to 0.25 weight percent Si, 0.65 to 1.1 weight percent Mn, 0.8 to 1.3 weight percent Cr, 0.05 to 0.11 Weight percent Mo, 0.05 to 0.11 weight percent V, ⁇ 0.02 weight percent P, optional up to 0.025 percent by weight Al, optionally 0.5 percent by weight Nb, residual iron and conventional impurities due to melting, the ratio of Mn to Cr being approximately 0.80 ⁇ Mn: Cr ⁇ 0.85 and the ratio of Mo to V is approximately 1.
  • Fig. 1 a plan view of a frog tip (10) is shown, which results from a front tip section in the form of a block tip (12) and butt welded to it Connection rail sections (14) and (16) together.
  • the block tip is 12 with the connecting rail sections (14) and (16) along the line BB welded.
  • the block tip (12) consists of a special steel, which is a vacuum-treated steel with 0.53 to 0.62 wt% C, 0.15 to 0.25 wt% Si, 0.65 up to 1.1 wt% Mn, 0.8 to 1.3 wt% Cr, 0.05 to 0.11 wt% Mo, 0.05 to 0.11 wt% V ⁇ 0.02% by weight P, optionally up to 0.025% by weight Al, optionally 0.5% by weight Nb, residual iron as well as usual impurities due to melting, the ratio of Mn to Cr is approximately 0.80 M Mn: Cr 0,8 0.85 and the ratio of Mo to V is approximately 1 is.
  • a special steel which is a vacuum-treated steel with 0.53 to 0.62 wt% C, 0.15 to 0.25 wt% Si, 0.65 up to 1.1 wt% Mn, 0.8 to 1.3 wt% Cr, 0.05 to 0.11 wt% Mo, 0.05 to 0.11 wt% V ⁇ 0.02% by weight P,
  • the connecting rails (14) and (16) consist of a steel, which for rules as Vignole rails can be used and an analysis with at least 0.73 to 0.79 % C, 0.86 to 0.99% Mn, 0.21 to 0.32% Si, 0.07 to 0.025% P, 0.008 up to 0.022% by weight of S, 0.02 to 0.14% by weight of Cr and 0.000% by weight of Nb as well as usual melting-related Has impurities.
  • the invention provides that the block tip (12) is only butt welded to the connecting rail section (14) and (16) and then the unit thus formed is remunerated.
  • the adjacent welding surfaces same geometries on how Figs. 4 and 5 are intended to illustrate. So the block tip points (12) a geometry in its end face (18) facing the rail sections (14), (16) on that of the surface of the facing abutting surfaces (20) and (22) of the connecting rail sections (14) and (16).
  • the block tip (12) on the one hand in the central area (reference number (26)) and on the other hand in the flank area (reference number (28)) and (30).
  • the depth of the elaboration (26) corresponding to an oval in the middle section The direction of the longitudinal axis (24) of the block tip (12) amounts to approximately one third to two thirds, preferably approximately half the width of the block tip (12) in the area its end face (18).
  • the side elaborations (28) and (30) extend approximately over a length of the block tip (12), which is approximately the width of the block tip (12) in its Face (18) corresponds.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Civil Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Architecture (AREA)
  • Organic Chemistry (AREA)
  • Arc Welding In General (AREA)
  • Stringed Musical Instruments (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Heat Treatment Of Articles (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electroluminescent Light Sources (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Electrotherapy Devices (AREA)
EP95118492A 1994-11-29 1995-11-24 Verfahren zur Herstellung einer Herzstückspitze sowie Herzstückspitze Expired - Lifetime EP0716185B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4442415A DE4442415A1 (de) 1994-11-29 1994-11-29 Verfahren zur Herstellung einer Herzstückspitze sowie Herzstückspitze
DE4442415 1994-11-29

Publications (2)

Publication Number Publication Date
EP0716185A1 EP0716185A1 (de) 1996-06-12
EP0716185B1 true EP0716185B1 (de) 2001-02-28

Family

ID=6534425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118492A Expired - Lifetime EP0716185B1 (de) 1994-11-29 1995-11-24 Verfahren zur Herstellung einer Herzstückspitze sowie Herzstückspitze

Country Status (7)

Country Link
EP (1) EP0716185B1 (da)
AT (1) ATE199417T1 (da)
DE (2) DE4442415A1 (da)
DK (1) DK0716185T3 (da)
ES (1) ES2155867T3 (da)
GR (1) GR3035868T3 (da)
PT (1) PT716185E (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023038B3 (de) * 2008-05-09 2009-06-25 Db Netz Ag Verfahren zum Herstellen eines Herzstücks mit einem Spitzenblock und zwei an den Spitzenblock anschließenden, zu einem Mittelblock gefügten Anschluss-Schienenabschnitten, sowie Herzstück

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621017C1 (de) * 1996-05-24 1998-01-08 Butzbacher Weichenbau Gmbh Verfahren zur Herstellung eines Gleisoberbauteils sowie Gleisoberbauteil
EP0920554B1 (de) * 1996-08-21 2000-12-13 Innovatiestichting High Rail Tech Herzstück für weichen und kreuzungen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1889837U (de) * 1963-11-02 1964-03-26 Schreck Mieves K G Weichenherzstueck.
DE1284439B (de) 1966-01-07 1968-12-05 Kloeckner Werke Ag Herzstueck mit blockartiger Herzstueckspitze
DE1533309B1 (de) 1966-08-16 1969-09-18 Klöckner-Werke AG, 4100 Duisburg Manganhartstahl für Weichen
DE1534054B1 (de) * 1966-09-22 1969-09-18 Kloeckner Werke Ag Herzstück aus Manganhartstahl
DE2706697C2 (de) * 1977-02-17 1978-07-06 Kloeckner-Werke Ag, 4100 Duisburg Verfahren zur Herstellung einer Schweißverbindung zwischen Manganhartstahl und Schienenstählen
AT350881B (de) * 1977-08-19 1979-06-25 Voest Ag Verfahren zur verbindung von ausmanganhart- stahlguss bestehenden herzstuecken mit aus kohlenstoffstahl bestehenden schienen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023038B3 (de) * 2008-05-09 2009-06-25 Db Netz Ag Verfahren zum Herstellen eines Herzstücks mit einem Spitzenblock und zwei an den Spitzenblock anschließenden, zu einem Mittelblock gefügten Anschluss-Schienenabschnitten, sowie Herzstück

Also Published As

Publication number Publication date
GR3035868T3 (en) 2001-08-31
DK0716185T3 (da) 2001-06-18
EP0716185A1 (de) 1996-06-12
DE4442415A1 (de) 1996-05-30
PT716185E (pt) 2001-08-30
ES2155867T3 (es) 2001-06-01
DE59509058D1 (de) 2001-04-05
ATE199417T1 (de) 2001-03-15

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