Global Patent Index - EP 0881013 B1

EP 0881013 B1 20010530 - Method for connection foundry cores

Title (en)

Method for connection foundry cores

Title (de)

Verfahren zum Verbinden von mehreren Giesskernen

Title (fr)

Procédé de connection des noyaux aux sable

Publication

EP 0881013 B1 20010530 (DE)

Application

EP 98109522 A 19980526

Priority

IT MI971238 A 19970527

Abstract (en)

[origin: EP0881013A1] The method concerns joining of two or more casting cores, according to which cores (11) produced beforehand are welded together. Joining is effected using a mixture of sand and a bonding agent which is injected into channels (13). The channels are made beforehand on at least one of their contact surface (12). The method includes the following steps: a) the cores (11) with channels (13) are placed into fixtures which ensure their mutually correct position, and resist forces produced by the injection and gas delivery process; b) injection is carried out using a core shooting machine which has an appropriate shooting plate and a hood for gas delivery.

IPC 1-7

B22C 9/10

IPC 8 full level

B22C 9/10 (2006.01)

CPC (source: EP)

B22C 9/103 (2013.01)

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0881013 A1 19981202; EP 0881013 B1 20010530; DE 59800778 D1 20010705; ES 2159414 T3 20011001; IT 1292008 B1 19990125; IT MI971238 A0 19970527; IT MI971238 A1 19981127

DOCDB simple family (application)

EP 98109522 A 19980526; DE 59800778 T 19980526; ES 98109522 T 19980526; IT MI971238 A 19970527