EP 0083713 A3 19831005 - METHOD OF PRODUCING A HOLLOW FOUNDRY CORE
Title (en)
METHOD OF PRODUCING A HOLLOW FOUNDRY CORE
Publication
Application
Priority
DE 3200193 A 19820107
Abstract (en)
[origin: US4694883A] An apparatus for producing a hollow foundry core, whereby core halves are first formed and fully hardened on an inner hollow-mold part and an outer mold-box half. These core halves are then sprayed with an adhesive and joined to form a finished foundry core. The apparatus reduces the production costs and improves the accuracy as to the size of the cores. The forming of the core halves on a center plate and the bringing together of the core halves respectively occurs by moving together both core-box halves in one operation.
IPC 1-7
IPC 8 full level
B22C 9/00 (2006.01); B22C 9/10 (2006.01); B22C 9/12 (2006.01); B22C 9/24 (2006.01); B22C 13/08 (2006.01); B22C 13/12 (2006.01)
CPC (source: EP US)
B22C 9/103 (2013.01 - EP US)
Citation (search report)
- [Y] DE 2557193 A1 19770623 - FOMES SA
- [Y] DE 3009184 A1 19800925 - ACME CLEVELAND CORP
- [A] DE 2437997 A1 19760226 - VOGEL & SCHEMMANN MASCH
- [A] DE 1253415 B 19671102 - RHEINSTAHL EISENWERK HILDEN AG
- [AD] DE 1758959 A1 19710401 - MEAD CORP
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0083713 A2 19830720; EP 0083713 A3 19831005; EP 0083713 B1 19850220; DE 3200193 A1 19830714; DE 3262453 D1 19850328; JP S58119435 A 19830715; US 4694883 A 19870922
DOCDB simple family (application)
EP 82110751 A 19821120; DE 3200193 A 19820107; DE 3262453 T 19821120; JP 22646582 A 19821224; US 81055185 A 19851218