EP 0632753 A1 19950111 - A METHOD FOR MAKING MOULDS.
Title (en)
A METHOD FOR MAKING MOULDS.
Title (de)
VERFAHREN ZUR HERSTELLUNG VON GUSSFORMEN.
Title (fr)
PROCEDE DE FABRICATION DE MOULES.
Publication
Application
Priority
- GB 9300636 W 19930329
- GB 9206835 A 19920328
- GB 9210615 A 19920519
Abstract (en)
[origin: WO9319870A1] A method for making a mould used in the manufacture of foundry castings comprises (a) providing a water-insoluble particulate material, such as sand; (b) combining the particulate material with a binder, preferably containing polyphosphate chains and/or borate ions and water; (c) heating the mixture to a temperature in excess of 100 DEG C; (d) forming the mixture into a desired shape; and removing water from the mixture, with air, at a temperature in excess of 100 DEG C. The method ensures that the volatilisation of the water does not cool the mixture and, therefore, the production cycle is hastened and efficiency is improved.
IPC 1-7
IPC 8 full level
B22C 5/04 (2006.01); B22C 5/08 (2006.01); B22C 9/12 (2006.01)
CPC (source: EP)
B22C 5/04 (2013.01); B22C 5/08 (2013.01); B22C 9/12 (2013.01)
Citation (search report)
See references of WO 9319870A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9319870 A1 19931014; AU 3894793 A 19931108; EP 0632753 A1 19950111; MX 9301739 A 19931201
DOCDB simple family (application)
GB 9300636 W 19930329; AU 3894793 A 19930329; EP 93907933 A 19930329; MX 9301739 A 19930329