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FR825906A - Method and apparatus for hardening the running surface of a rail - Google Patents

Method and apparatus for hardening the running surface of a rail

Info

Publication number
FR825906A
FR825906A FR825906DA FR825906A FR 825906 A FR825906 A FR 825906A FR 825906D A FR825906D A FR 825906DA FR 825906 A FR825906 A FR 825906A
Authority
FR
France
Prior art keywords
hardening
rail
running surface
running
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
Application number
Other languages
French (fr)
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.)
Linde Air Products Co
Original Assignee
Linde Air Products Co
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 Linde Air Products Co filed Critical Linde Air Products Co
Application granted granted Critical
Publication of FR825906A publication Critical patent/FR825906A/en
Expired 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • 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
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/01—End parts (e.g. leading, trailing end)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
FR825906D 1936-09-18 1937-08-25 Method and apparatus for hardening the running surface of a rail Expired FR825906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US101358A US2198808A (en) 1936-09-18 1936-09-18 Method of and apparatus for hardening rail ends

Publications (1)

Publication Number Publication Date
FR825906A true FR825906A (en) 1938-03-17

Family

ID=22284218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825906D Expired FR825906A (en) 1936-09-18 1937-08-25 Method and apparatus for hardening the running surface of a rail

Country Status (3)

Country Link
US (1) US2198808A (en)
FR (1) FR825906A (en)
GB (1) GB501340A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355915A1 (en) * 1976-06-22 1978-01-20 Peddinghaus Paul Ferd Workpiece surface hardening - by quenching in quenching fluid with addition of gasified low temperature coolant

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519354A (en) * 1947-04-09 1950-08-22 Bethlehem Steel Corp End hardening of rails
US2665900A (en) * 1949-12-15 1954-01-12 Air Reduction Torch holding attachment for gas cutting machines
CN111867173B (en) * 2020-06-16 2021-05-28 燕山大学 A space-following rail electromagnetic induction heating device
CN114633421B (en) * 2022-02-14 2024-07-12 中逸新材料科技(厦门)有限公司 Mild cooling and preserving device for thermoplastic powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355915A1 (en) * 1976-06-22 1978-01-20 Peddinghaus Paul Ferd Workpiece surface hardening - by quenching in quenching fluid with addition of gasified low temperature coolant

Also Published As

Publication number Publication date
US2198808A (en) 1940-04-30
GB501340A (en) 1939-02-21

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