BR0112641A - Rodas ferroviárias resistentes à transformação martensìtica - Google Patents

Rodas ferroviárias resistentes à transformação martensìtica

Info

Publication number
BR0112641A
BR0112641A BR0112641-5A BR0112641A BR0112641A BR 0112641 A BR0112641 A BR 0112641A BR 0112641 A BR0112641 A BR 0112641A BR 0112641 A BR0112641 A BR 0112641A
Authority
BR
Brazil
Prior art keywords
weight percent
resistant
transformation
rail wheels
martensically
Prior art date
Application number
BR0112641-5A
Other languages
English (en)
Inventor
Daniel Hunter Stone
Kevin James Sawley
Original Assignee
Transp Technology Ct Inc
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 Transp Technology Ct Inc filed Critical Transp Technology Ct Inc
Publication of BR0112641A publication Critical patent/BR0112641A/pt

Links

Classifications

    • 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
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Chemically Coating (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

"RODAS FERROVIáRIAS RESISTENTES à TRANSFORMAçãO MARTENSìTICA". Aços possuindo uma estrutura perlítica (ver Figura 6) e contendo de 0,60 a 1,0 por cento em peso de carbono, de 1,1 a 3,0 por cento em peso de silício, de 0,45 a 0,85 por cento em peso de manganês, menos de 0,050 por cento em peso de enxofre e menos de 0,050 por cento em peso de fósforo com o restante do aço sendo de ferro e de impurezas incidentais, podem ser usados para produzir rodas para uso ferroviário que são resistentes às transformações martensíticas e, portanto, ao lascamento. A adição de 0,50 a 1,0 por cento em peso de cromo a tais aços adicionalmente melhora suas resistências ao lascamento.
BR0112641-5A 2000-07-21 2001-07-16 Rodas ferroviárias resistentes à transformação martensìtica BR0112641A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/621,504 US6387191B1 (en) 2000-07-21 2000-07-21 Railway wheels resistant to martensite transformation
PCT/US2001/022239 WO2002008482A1 (en) 2000-07-21 2001-07-16 Railway wheels resistant to martensite transformation

Publications (1)

Publication Number Publication Date
BR0112641A true BR0112641A (pt) 2003-06-24

Family

ID=24490429

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0112641-5A BR0112641A (pt) 2000-07-21 2001-07-16 Rodas ferroviárias resistentes à transformação martensìtica

Country Status (7)

Country Link
US (3) US6387191B1 (pt)
EP (1) EP1409758A1 (pt)
JP (1) JP2004520480A (pt)
AU (1) AU2001273472A1 (pt)
BR (1) BR0112641A (pt)
WO (1) WO2002008482A1 (pt)
ZA (1) ZA200301129B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6387191B1 (en) * 2000-07-21 2002-05-14 Transportation Technology Center, Inc. Railway wheels resistant to martensite transformation
JP4808856B2 (ja) * 2001-04-06 2011-11-02 富士通セミコンダクター株式会社 半導体記憶装置
US7591909B2 (en) * 2007-08-23 2009-09-22 Transportation Technology Center, Inc. Railroad wheel steels having improved resistance to rolling contact fatigue
US7559999B2 (en) * 2007-08-23 2009-07-14 Transportation Technology Center, Inc. Railroad wheel steels having improved resistance to rolling contact fatigue
US20090053095A1 (en) * 2007-08-23 2009-02-26 Transportation Technology Center, Inc. Railroad steels having improved resistance to rolling contact fatigue
PT2785890E (pt) * 2011-11-28 2015-10-01 Tata Steel Uk Ltd Aço de trilho com uma excelente combinação de propriedades de desgaste, resistência à fadiga de contacto de rolamento e soldabilidade

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2730045C2 (de) * 1977-07-02 1984-11-08 Krupp Stahl Ag, 4630 Bochum Verfahren zum Herstellen verschleißbeständiger Schienen und/oder Radwerkstoffen
US4449248A (en) * 1982-02-01 1984-05-15 General Electric Company Battery saving radio circuit and system
EP0186455A3 (en) * 1984-12-20 1987-11-25 The Marconi Company Limited A dipole array
US4882588A (en) * 1986-12-22 1989-11-21 Hughes Aircraft Company Steerable beam antenna system using butler matrix
US5073971A (en) * 1989-09-05 1991-12-17 Motorola, Inc. Cellular radiotelephone communications system
US5230084A (en) * 1990-12-06 1993-07-20 Motorola, Inc. Selective call receiver having extended battery saving capability
FR2690010B1 (fr) * 1992-04-09 1994-05-27 Europ Agence Spatiale Procede de commande d'une antenne a balayage.
JPH05292010A (ja) * 1992-04-10 1993-11-05 Fujitsu Ltd 無線チャネル割当て方法および装置
US5369681A (en) * 1992-05-12 1994-11-29 Telefonaktiebolaget L M Ericsson Cellular communications system utilizing paging areas
DE4234192C2 (de) 1992-10-10 1996-01-11 Gutehoffnungshuette Man Hoch belastbare Vollräder und Radreifen für Schienen-Triebfahrzeuge und Wagen
US5485633A (en) * 1993-06-01 1996-01-16 Burke; James J. Method for transmitting a message to multiple communication units
US5530918A (en) * 1994-12-05 1996-06-25 Motorola, Inc. Method and apparatus for message scheduling in a multi-site data radio communication system
US5726640A (en) * 1995-10-04 1998-03-10 Motorola, Inc. System and method for scheduling the transmission of pages having different protocols
JP3516189B2 (ja) 1996-01-23 2004-04-05 住友金属工業株式会社 耐摩耗性および耐熱亀裂性に優れた鉄道車両用車輪およびその製造方法
US5930243A (en) * 1996-10-11 1999-07-27 Arraycomm, Inc. Method and apparatus for estimating parameters of a communication system using antenna arrays and spatial processing
US6387191B1 (en) * 2000-07-21 2002-05-14 Transportation Technology Center, Inc. Railway wheels resistant to martensite transformation

Also Published As

Publication number Publication date
US20040026944A1 (en) 2004-02-12
JP2004520480A (ja) 2004-07-08
EP1409758A1 (en) 2004-04-21
US20020153067A1 (en) 2002-10-24
US6387191B1 (en) 2002-05-14
ZA200301129B (en) 2004-04-01
US6632297B2 (en) 2003-10-14
AU2001273472A1 (en) 2002-02-05
WO2002008482A1 (en) 2002-01-31

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Legal Events

Date Code Title Description
B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]

Free format text: O INTERESSADO DEVERA APRESENTAR A RETRIBUICAO REFERENTE A 6 (SEIS) REIVINDICACOES EXCEDENTES CONFORME A PETICAO RJ 48.756 DE 25/08/04.

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A,6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO 1976 DE 18/11/2008.