Global Patent Index - EP 0945201 B1

EP 0945201 B1 20040121 - Method of producing a casting having roughened cooling channels

Title (en)

Method of producing a casting having roughened cooling channels

Title (de)

Verfahren zur Herstellung eines Gussteils mit aufgerauhten Kühlkanälen

Title (fr)

Procédé de fabrication d'une pièce de coulée ayant des canaux de refroidissement à rugosité accrue

Publication

EP 0945201 B1 20040121 (DE)

Application

EP 98810250 A 19980323

Priority

EP 98810250 A 19980323

Abstract (en)

[origin: EP0945201A1] The method produces a casting core for formation of a cavity for cooling medium flow within a casting during its operation. The core has surface regions with deliberately produced roughness. During casting this roughness is transferred to surfaces bounding the cooling cavity, with a resultant improvement in the heat transfer between the casting and the cooling medium.

IPC 1-7

B22C 9/18; B22C 9/22

IPC 8 full level

B22C 9/18 (2006.01); B22C 9/22 (2006.01)

CPC (source: EP US)

B22C 9/18 (2013.01 - EP US); B22C 9/22 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0945201 A1 19990929; EP 0945201 B1 20040121; DE 59810629 D1 20040226; US 6374898 B1 20020423

DOCDB simple family (application)

EP 98810250 A 19980323; DE 59810629 T 19980323; US 26872299 A 19990317