DE59509058D1 - Process for producing a frog tip and frog tip - Google Patents

Process for producing a frog tip and frog tip

Info

Publication number
DE59509058D1
DE59509058D1 DE59509058T DE59509058T DE59509058D1 DE 59509058 D1 DE59509058 D1 DE 59509058D1 DE 59509058 T DE59509058 T DE 59509058T DE 59509058 T DE59509058 T DE 59509058T DE 59509058 D1 DE59509058 D1 DE 59509058D1
Authority
DE
Germany
Prior art keywords
rail
sections
max
head section
frog tip
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
DE59509058T
Other languages
German (de)
Inventor
Gerhard Ratz
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
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 Butzbacher Weichenbau GmbH filed Critical Butzbacher Weichenbau GmbH
Application granted granted Critical
Publication of DE59509058D1 publication Critical patent/DE59509058D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Abstract

Points for a rail system are made by welding together a head section (12) and rail sections (14, 16) which are made from different types of steel. After welding, the welded unit is heat treated to produce the required crystal structures in the different sections. The shape of the different sections is such that they fit tightly into each other before welding. The rail sections are made of rail steel containing (in wt.%): 0.73-0.79 C, 0.86-0.99 Mn, 0.21-0.32 Si, 0.07-0.025 P, 0.008-0.022 S, 0.02-0.14 Cr and 0.000 Nb (sic) plus usual melting impurities. The head section is made of a special steel contg. 0.53-0.62 C, 0.15-0.25 Si, 0.65-1.1 Mn, 0.8-1.3 Cr, 0.05-0.11 Mo, 0.05-0.11 V, max. 0.02 P, max. 0.025 Al, 0.5 Nb, balance Fe and usual impurities. The ratio of Mn to Cr is min. 0.8 Mn:max. 0.85 Cr and that of Mo to V is approx. 1. After heat treating, the head section is martensitic and the rail sections pearlitic.
DE59509058T 1994-11-29 1995-11-24 Process for producing a frog tip and frog tip Expired - Lifetime DE59509058D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4442415A DE4442415A1 (en) 1994-11-29 1994-11-29 Process for producing a frog tip and frog tip

Publications (1)

Publication Number Publication Date
DE59509058D1 true DE59509058D1 (en) 2001-04-05

Family

ID=6534425

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4442415A Withdrawn DE4442415A1 (en) 1994-11-29 1994-11-29 Process for producing a frog tip and frog tip
DE59509058T Expired - Lifetime DE59509058D1 (en) 1994-11-29 1995-11-24 Process for producing a frog tip and frog tip

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4442415A Withdrawn DE4442415A1 (en) 1994-11-29 1994-11-29 Process for producing a frog tip and frog tip

Country Status (7)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621017C1 (en) * 1996-05-24 1998-01-08 Butzbacher Weichenbau Gmbh Process for the production of a track superstructure and track superstructure
CA2263689C (en) 1996-08-21 2003-12-16 Oswald Lochschmidt Crossing assembly for point switches and processing
DE102008023038B3 (en) * 2008-05-09 2009-06-25 Db Netz Ag A method of manufacturing a centerpiece having a tip block and two terminal track sections adjoining the tip block and joined to a center block, and heart

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1889837U (en) * 1963-11-02 1964-03-26 Schreck Mieves K G SOFT HEART PIECE.
DE1284439B (en) 1966-01-07 1968-12-05 Kloeckner Werke Ag Heart piece with a block-like heart piece tip
DE1533309B1 (en) 1966-08-16 1969-09-18 Klöckner-Werke AG, 4100 Duisburg Manganese steel for switches
DE1534054B1 (en) * 1966-09-22 1969-09-18 Kloeckner Werke Ag Center piece made of manganese steel
DE2706697C2 (en) * 1977-02-17 1978-07-06 Kloeckner-Werke Ag, 4100 Duisburg Process for producing a welded joint between manganese steel and rail steels
AT350881B (en) * 1977-08-19 1979-06-25 Voest Ag METHOD OF CONNECTING CASTING AUSMANGAN CAST STEEL TO SPINS MADE OF CARBON STEEL

Also Published As

Publication number Publication date
ES2155867T3 (en) 2001-06-01
GR3035868T3 (en) 2001-08-31
ATE199417T1 (en) 2001-03-15
DK0716185T3 (en) 2001-06-18
EP0716185B1 (en) 2001-02-28
EP0716185A1 (en) 1996-06-12
DE4442415A1 (en) 1996-05-30
PT716185E (en) 2001-08-30

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: BWG GMBH & CO.KG, 35510 BUTZBACH, DE

8364 No opposition during term of opposition