EP 1053064 A1 20001122 - METHOD AND DEVICE FOR THE DEFORMATION BY HYDRODYNAMIC DRAWING OF MULTI-LAYER COMPOSITE WIRE BY MEANS OF LUBRICANT-SUPPLIED MULTIPLE DRAWING MACHINES
Title (en)
METHOD AND DEVICE FOR THE DEFORMATION BY HYDRODYNAMIC DRAWING OF MULTI-LAYER COMPOSITE WIRE BY MEANS OF LUBRICANT-SUPPLIED MULTIPLE DRAWING MACHINES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HYDRODYNAMISCHEN ZIEHUMFORMUNG VON SCHICHTVERBUNDDRAHT MITTELS SCHMIERMITTELBEAUFSCHLAGTEN MEHRFACH-ZIEHANLAGEN
Title (fr)
PROCEDE ET DISPOSITIF POUR LE FA ONNAGE PAR TREFILAGE HYDRODYNAMIQUE DE FIL COMPOSITE STRATIFIE AU MOYEN DE BANCS DE TREFILAGE MULTIPLE ALIMENTES EN LUBRIFIANT
Publication
Application
Priority
- DE 19804016 A 19980202
- DE 19810342 A 19980310
- EP 9900680 W 19990202
Abstract (en)
[origin: WO9938625A1] The invention relates to a method and device for the deformation by hydrodynamic drawing of multi-layer composite wire (8) by means of lubricant-supplied multiple drawing machines. According to said method, before the multiple drawing machine is started or restarted, directly in front of the drawing die (4) of each drawing stage a hydrostatic starting pressure acting on the drawing and other lubricant supplied thereto and on the multi-layer composite wire (6) is generated in the drawing slot by means of a heated pressure chamber (10) through which the multi-layer composite wire extends. In this way especially multi-layer composite wires (6) with a high-strength core and a soft sheath can be deformed in a high-quality manner, and during ongoing continuous drawing in a known manner hydrodynamic pressure conditions continue to be generated in the drawing slot by the entrainment of lubricant.
IPC 1-7
IPC 8 full level
B21C 1/00 (2006.01); B21C 3/14 (2006.01); B21C 9/00 (2006.01)
CPC (source: EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9938625 A1 19990805; AT E217218 T1 20020515; CA 2318831 A1 19990805; EP 1053064 A1 20001122; EP 1053064 B1 20020508; JP 2002501827 A 20020122; JP 3326499 B2 20020924
DOCDB simple family (application)
EP 9900680 W 19990202; AT 99907481 T 19990202; CA 2318831 A 19990202; EP 99907481 A 19990202; JP 2000529908 A 19990202