EP 0947605 B1 20020821 - Process for increasing the corrosion resistance of a metallic workpiece and workpiece
Title (en)
Process for increasing the corrosion resistance of a metallic workpiece and workpiece
Title (de)
Verfahren zum Erhöhen der Korrisionsbeständigkeit eines metallischen Werkstücks sowie Werkstück
Title (fr)
Procédé pour l'amélioration de la résistance à la corrosion d'une pièce métallique et pièce
Publication
Application
Priority
DE 19814218 A 19980331
Abstract (en)
[origin: EP0947605A1] A metal workpiece (1) has increased corrosion resistance by blasting with grit which leaves grit debris as a corrosion resistant coating (2). The corrosion resistance of a metal workpiece (1) is increased by blasting with grit which causes deformation or structural modification of the workpiece surface and which produces corrosion resistant grit debris to form a corrosion resistant coating (2). An Independent claim is also included for a metal workpiece (1) having a deformed and compacted surface region (3) structurally bonded (preferably cold welded) to a coating layer (2). Preferred Features: The workpiece consists of an AlMgSi or AlMgSiCu alloy and the grit consists of aluminum or an AlMg alloy.
IPC 1-7
IPC 8 full level
C23C 24/04 (2006.01)
CPC (source: EP)
C23C 24/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL PT SE
DOCDB simple family (publication)
EP 0947605 A1 19991006; EP 0947605 B1 20020821; AT E222612 T1 20020915; DE 19814218 A1 19991014; DE 59902392 D1 20020926; ES 2182406 T3 20030301
DOCDB simple family (application)
EP 99100999 A 19990121; AT 99100999 T 19990121; DE 19814218 A 19980331; DE 59902392 T 19990121; ES 99100999 T 19990121