Global Patent Index - EP 1557223 B1

EP 1557223 B1 20080730 - Process for treating of cast aluminium parts

Title (en)

Process for treating of cast aluminium parts

Title (de)

Verfahren zur Behandlung von Aluminiumgussteilen

Title (fr)

Procédé de traitement de pièces en aluminium coulé

Publication

EP 1557223 B1 20080730 (DE)

Application

EP 04024902 A 20041020

Priority

DE 102004003422 A 20040123

Abstract (en)

[origin: EP1557223A1] To treat the surfaces of aluminum castings, especially at internal combustion motors, the outer and inner sides are treated with a high pressure wet blasting, using a mixture of water and salt crystals including at least potassium sulfate. The spray unit (10) for surface blasting has feeds (11,12) for water and salt crystals into a mixing chamber (13) and delivered through a jet (14).

IPC 8 full level

B08B 3/02 (2006.01); B08B 9/08 (2006.01); B24C 1/00 (2006.01); B24C 7/00 (2006.01); B24C 11/00 (2006.01); C22F 1/04 (2006.01)

CPC (source: EP)

B08B 3/02 (2013.01); B24C 7/0007 (2013.01); B24C 7/0076 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1557223 A1 20050727; EP 1557223 B1 20080730; DE 102004003422 A1 20050818; DE 502004007730 D1 20080911

DOCDB simple family (application)

EP 04024902 A 20041020; DE 102004003422 A 20040123; DE 502004007730 T 20041020