EP 2491160 A1 20120829 - METHOD FOR INCREASING THE STRENGTH OF COMPONENTS MADE OF STEEL UNDER CYCLIC LOAD
Title (en)
METHOD FOR INCREASING THE STRENGTH OF COMPONENTS MADE OF STEEL UNDER CYCLIC LOAD
Title (de)
VERFAHREN ZUM STEIGERN DER BEANSPRUCHBARKEIT VON BAUTEILEN AUS STAHL UNTER ZYKLISCHER BELASTUNG
Title (fr)
PROCÉDÉ POUR AUGMENTER LA RÉSISTANCE DE PIÈCES EN ACIER SOUMISES À DES CHARGES CYCLIQUES
Publication
Application
Priority
- DE 102009045878 A 20091021
- EP 2010064062 W 20100923
Abstract (en)
[origin: WO2011047930A1] The invention relates to a method for increasing the strength of components (1) made of steel, in particular pressurized components of fuel injection systems and/or components of fuel injection systems subjected to high mechanical loads, under cyclic load using residual compressive stresses that are deliberately introduced into the component surface and that counteract the load distribution acting on the component surface during cyclic loads, wherein, according to the invention, a residual compressive stress profile is introduced into the component surface by means of gas nitriding of the component (1) and a nitride bonding layer (3) having a thickness (d) of no more than 10 µm is applied to the component surface during gas nitriding.
IPC 8 full level
C23C 8/26 (2006.01)
CPC (source: EP)
C23C 8/26 (2013.01)
Citation (search report)
See references of WO 2011047930A1
Citation (examination)
- EP 1686295 A1 20060802 - RIKEN KK [JP]
- JP 2002047554 A 20020215 - SUMITOMO METAL MINING CO
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009045878 A1 20110428; CN 102666906 A 20120912; EP 2491160 A1 20120829; WO 2011047930 A1 20110428
DOCDB simple family (application)
DE 102009045878 A 20091021; CN 201080047678 A 20100923; EP 10759620 A 20100923; EP 2010064062 W 20100923