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FR2324743A1 - PROCESS FOR THERMAL TREATMENT OF NEEDLE PARTS - Google Patents

PROCESS FOR THERMAL TREATMENT OF NEEDLE PARTS

Info

Publication number
FR2324743A1
FR2324743A1 FR7628144A FR7628144A FR2324743A1 FR 2324743 A1 FR2324743 A1 FR 2324743A1 FR 7628144 A FR7628144 A FR 7628144A FR 7628144 A FR7628144 A FR 7628144A FR 2324743 A1 FR2324743 A1 FR 2324743A1
Authority
FR
France
Prior art keywords
thermal treatment
needle parts
needle
parts
thermal
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.)
Withdrawn
Application number
FR7628144A
Other languages
French (fr)
Inventor
Wilhelm Dr Heller
Christoph Hoffmann
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.)
Fried Krupp Huettenwerke AG
Original Assignee
Fried Krupp Huettenwerke AG
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 Fried Krupp Huettenwerke AG filed Critical Fried Krupp Huettenwerke AG
Publication of FR2324743A1 publication Critical patent/FR2324743A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E01B7/12—Fixed frogs made of one part or composite
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
FR7628144A 1975-09-20 1976-09-20 PROCESS FOR THERMAL TREATMENT OF NEEDLE PARTS Withdrawn FR2324743A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2541978A DE2541978C3 (en) 1975-09-20 1975-09-20 Process for the heat treatment of switch parts in a continuous process

Publications (1)

Publication Number Publication Date
FR2324743A1 true FR2324743A1 (en) 1977-04-15

Family

ID=5956971

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628144A Withdrawn FR2324743A1 (en) 1975-09-20 1976-09-20 PROCESS FOR THERMAL TREATMENT OF NEEDLE PARTS

Country Status (15)

Country Link
AT (1) AT386841B (en)
BE (1) BE846377A (en)
BG (1) BG39807A3 (en)
CH (1) CH621364A5 (en)
DD (1) DD126536A5 (en)
DE (1) DE2541978C3 (en)
FI (1) FI762667A (en)
FR (1) FR2324743A1 (en)
GB (1) GB1510608A (en)
IT (1) IT1068280B (en)
LU (1) LU75832A1 (en)
NL (1) NL7609909A (en)
RO (1) RO72116A (en)
YU (1) YU37191B (en)
ZA (1) ZA765542B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2940826C2 (en) * 1979-10-09 1987-03-26 Fa. Paul Ferd. Peddinghaus, 5820 Gevelsberg Process for deep hardening of workpieces and device for carrying out this process
DE3446794C1 (en) * 1984-12-21 1986-01-02 BWG Butzbacher Weichenbau GmbH, 6308 Butzbach Process for the heat treatment of pearlitic rail steel
AT391707B (en) * 1985-03-25 1990-11-26 Voest Alpine Ag METHOD FOR PREVENTING ADJUSTMENT OF RAILS IN THE TRANSITIONAL AREA AND DEVICE FOR CARRYING OUT THIS METHOD
AT384624B (en) * 1986-05-22 1987-12-10 Voest Alpine Ag DEVICE FOR CONTROLLED HEAT TREATMENT OF SOFT PARTS
AT401359B (en) * 1991-04-05 1996-08-26 Vae Ag METHOD FOR PRODUCING A HEART PIECE
DE4200545A1 (en) * 1992-01-11 1993-07-15 Butzbacher Weichenbau Gmbh TRACK PARTS AND METHOD FOR THE PRODUCTION THEREOF
CN115852118A (en) * 2022-12-15 2023-03-28 攀钢集团攀枝花钢铁研究院有限公司 Production method of low-stress high-performance steel for frog

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583991A (en) * 1967-06-29 1969-12-12
GB1256013A (en) * 1968-08-13 1971-12-08 Union Carbide Corp Rail hardening method and apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583991A (en) * 1967-06-29 1969-12-12
GB1256013A (en) * 1968-08-13 1971-12-08 Union Carbide Corp Rail hardening method and apparatus

Also Published As

Publication number Publication date
ZA765542B (en) 1977-08-31
DE2541978A1 (en) 1977-03-24
BG39807A3 (en) 1986-08-15
NL7609909A (en) 1977-03-22
BE846377A (en) 1977-01-17
YU225476A (en) 1983-04-27
GB1510608A (en) 1978-05-10
DE2541978B2 (en) 1977-12-15
RO72116A (en) 1981-11-04
ATA676276A (en) 1980-01-15
DE2541978C3 (en) 1978-08-24
YU37191B (en) 1984-08-31
DD126536A5 (en) 1977-07-20
IT1068280B (en) 1985-03-21
CH621364A5 (en) 1981-01-30
FI762667A (en) 1977-03-21
AT386841B (en) 1988-10-25
LU75832A1 (en) 1977-05-04

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Legal Events

Date Code Title Description
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse