Global Patent Index - EP 0971825 A1

EP 0971825 A1 2000-01-19 - METHOD FOR IMPROVING THE PROPERTIES OF RAILWAY WHEELS AND RAILWAY WHEEL

Title (en)

METHOD FOR IMPROVING THE PROPERTIES OF RAILWAY WHEELS AND RAILWAY WHEEL

Title (de)

VERFAHREN ZUR VERBESSERUNG VON EIGENSCHAFTEN VON EISENBAHNRÄDERN UND EIN SOLCHES EISENBAHNRAD

Title (fr)

PROCEDE D'AMELIORATION DES PROPRIETES DES ROUES POUR VOIES FERROVIAIRES ET ROUE CORRESPONDANTE

Publication

EP 0971825 A1 (EN)

Application

EP 98914206 A

Priority

  • SE 9800586 W
  • SE 9701173 A

Abstract (en)

[origin: WO9843834A1] The present invention relates to a railway wheel and a method for improving the properties of railway wheels (1). According to this method portions of the base material (2) of the railway wheel (1) are removed and replaced by completing surface layers (16, 17) which are provided by forming a melt on said portions of the base material (2), preferably by laser radiation, and by adding additive to said melt for imparting additional properties to the completing surface layers (16, 17) besides the properties imparted thereto by the base material (2).

IPC 1-7

B60B 17/00

IPC 8 full level

B23P 6/00 (2006.01); B60B 17/00 (2006.01); C21D 9/34 (2006.01); B23K 35/32 (2006.01); C21D 1/09 (2006.01)

CPC

B60B 17/0006 (2013.01); B23P 6/00 (2013.01); C21D 9/34 (2013.01); B23K 35/327 (2013.01); C21D 1/09 (2013.01)

Citation (search report)

See references of WO 9843834A1

DCS

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

DOCDB simple family

WO 9843834 A1 19981008; AU 6861398 A 19981022; BR 9808634 A 20000516; EP 0971825 A1 20000119; JP 2001517177 A 20011002; SE 511411 C2 19990927; SE 9701173 D0 19970401; SE 9701173 L 19981002