BR0112641A - Rodas ferroviárias resistentes à transformação martensìtica - Google Patents
Rodas ferroviárias resistentes à transformação martensìticaInfo
- 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
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.
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)
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)
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 |
-
2000
- 2000-07-21 US US09/621,504 patent/US6387191B1/en not_active Expired - Fee Related
-
2001
- 2001-07-16 EP EP01952751A patent/EP1409758A1/en not_active Withdrawn
- 2001-07-16 AU AU2001273472A patent/AU2001273472A1/en not_active Abandoned
- 2001-07-16 BR BR0112641-5A patent/BR0112641A/pt not_active IP Right Cessation
- 2001-07-16 JP JP2002513961A patent/JP2004520480A/ja active Pending
- 2001-07-16 WO PCT/US2001/022239 patent/WO2002008482A1/en not_active Application Discontinuation
-
2002
- 2002-04-17 US US10/124,552 patent/US6632297B2/en not_active Expired - Fee Related
-
2003
- 2003-02-11 ZA ZA200301129A patent/ZA200301129B/en unknown
- 2003-08-05 US US10/634,209 patent/US20040026944A1/en not_active Abandoned
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. |