EP 0531612 B1 19960731 - Method for carrying out the ejection cycle of the air stored between die and billet in a billet extruding press
Title (en)
Method for carrying out the ejection cycle of the air stored between die and billet in a billet extruding press
Title (de)
Verfahren zum Ausblasen der zwischen Matrize und Knüppel eingesperrten Luft in einer Strangpresse
Title (fr)
Méthode pour éjecter l'air emprisonné entre la billette et la filière dans une presse à extrusion
Publication
Application
Priority
IT MI912427 A 19910913
Abstract (en)
[origin: EP0531612A1] The invention relates to a method of carrying out an ejection cycle for air trapped between a billet and a die in a generic metal extrusion press (1) which comprises a carrier (5) for a billet (b) and a plunger (2) provided with respective actuating hydraulic cylinder/piston assemblies (6;3 and 4). For carrying out the method, the press (1) is provided with hydropneumatic accumulators (11,15) adapted to supply the cylinder/piston assemblies (4 and 6) with oil under such a pressure as to resist the thrust forces of the carrier (5) against the extrusion die (M) and of the plunger (2) against the billet (b) as the latter is being extruded. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 23/21 (2006.01); B21C 27/04 (2006.01)
CPC (source: EP)
B21C 23/211 (2013.01); B21C 27/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI SE
DOCDB simple family (publication)
EP 0531612 A1 19930317; EP 0531612 B1 19960731; AT E140885 T1 19960815; DE 69212549 D1 19960905; DE 69212549 T2 19970227; ES 2090404 T3 19961016; IT 1251314 B 19950508; IT MI912427 A0 19910913; IT MI912427 A1 19930314; JP H05212435 A 19930824
DOCDB simple family (application)
EP 92106740 A 19920421; AT 92106740 T 19920421; DE 69212549 T 19920421; ES 92106740 T 19920421; IT MI912427 A 19910913; JP 11381292 A 19920506