EP 0481951 A3 19920429 - BILLET CONTAINER WITH A FLATTENED CHAMBER FOR EXTRUSION PRESSES AND METHOD OF ITS MANUFACTURE
Title (en)
BILLET CONTAINER WITH A FLATTENED CHAMBER FOR EXTRUSION PRESSES AND METHOD OF ITS MANUFACTURE
Publication
Application
Priority
AT 206090 A 19901012
Abstract (en)
[origin: EP0481951A2] The invention relates to a billet container with a flattened chamber for extrusion presses, the said container being formed by a plurality of parts (2) and having an opening bounded by fillets, and to a method for manufacturing the said container. According to the invention, the internal sleeve (3) or the filleting parts (43) undergo mechanical or thermal treatment over their length, during which treatment a plastic deformation, at least in part, of the material is carried out below the tempering temperature and elevated compressive stresses are formed in the superficial zone of the internal sleeve (3), at least in the region of the fillets.
IPC 1-7
IPC 8 full level
B21C 25/02 (2006.01); B21C 25/10 (2006.01); B21C 27/00 (2006.01)
CPC (source: EP)
B21C 27/00 (2013.01)
Citation (search report)
- [X] US 3892114 A 19750701 - TANIGUCHI HIROYOSHI, et al
- [X] GB 783863 A 19571002 - LOEWY ENG CO LTD
- [A] DE 3512574 A1 19861016 - HASENCLEVER MASCHF SMS [DE]
- [A] US 3089591 A 19630514 - HANS GROOS HORST
- [AD] DE 2417815 A1 19751030 - ALUMINIUM WALZWERKE SINGEN
- [X] PATENT ABSTRACTS OF JAPAN vol. 9, no. 231 (M-414)(1954) 18. September 1985 & JP-A-60 087 918 ( HITACHI KINZOKU K.K. ) 17. Mai 1985
Designated contracting state (EPC)
CH DE FR IT LI
DOCDB simple family (publication)
EP 0481951 A2 19920422; EP 0481951 A3 19920429; AT 395687 B 19930225; AT A206090 A 19920715; JP H04274820 A 19920930
DOCDB simple family (application)
EP 91890205 A 19910912; AT 206090 A 19901012; JP 32358991 A 19911004