Patent · US Expired

Process for producing a casting core, for forming within a cavity intended for cooling purposes

US6374898B1 · kind B1 · utility

2Cited by

0References

8Claims

0Family size

Assignee

ALSTOM Holdings · FR

Inventors

Konrad Vogeler · Waldshut-Tiengen, DE
Bernhard Weigand · Lauchringen, DE
Hans Wettstein · Fislisbach, CH

Key dates

Filing date	Mar 17, 1999
Grant date	Apr 23, 2002
Priority date	—
Expiry date	Mar 17, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22C9/18
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for producing a casting core which is used for forming within a casting a cavity intended for cooling purposes, through which a cooling medium can be conducted, the casting core having surface regions in which there is incorporated in a specifically selective manner a surface roughness which transfers itself during the casting operation to surface regions enclosing the cavity and leads to an increase in the heat transfer between the cooling medium and the casting.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.