EP 1210179 B1 20040225 - NOZZLE BODY FOR PRODUCING SUPERFINE LIQUID JET STREAMS ON WATER NEEDLING DEVICES AND A JET NEEDLING METHOD
Title (en)
NOZZLE BODY FOR PRODUCING SUPERFINE LIQUID JET STREAMS ON WATER NEEDLING DEVICES AND A JET NEEDLING METHOD
Title (de)
DÜSENKÖRPER ZUR ERZEUGUNG VON FEINSTEN FLÜSSIGKEITSSTRAHLEN AN WASSERVERNADELUNGSEINRICHTUNGEN UND VERFAHREN ZUR STRAHLVERFLECHTUNG
Title (fr)
CORPS A BUSES POUR PRODUIRE DES JETS DE LIQUIDE EXTREMEMENT FINS SUR DES DISPOSITIFS D'ENCHEVETREMENT PAR EAU, ET PROCEDE D'ENTRECROISEMENT PAR JETS
Publication
Application
Priority
- DE 19941729 A 19990901
- EP 0008119 W 20000821
Abstract (en)
[origin: WO0115812A1] The water jet streams on a nozzle beam for the hydrodynamic water needling are formed inside a nozzle body (14, 31) which extends over the length of the nozzle beam. The material of the nozzle strip (14) is, in general, made of high-grade steel in which the holes (30) for the nozzle jet streams are punched or drilled. According to the invention, the material of the nozzle body (31) is made of hard metal, ceramic or of a material having similar properties such as sapphire, and the holes are then made using a laser beam or an electrical discharge machining method or a diamond drill. The nozzle body can be provided as a nozzle strip or only as one individual unit that produces the respective water jet stream. This ensures not only a high level of abrasive resistance of the hole edge areas, but very smooth and, in particular, longer hole walls which can also be produced with sharp-edges and without the formation of burrs.
IPC 1-7
IPC 8 full level
B23P 17/00 (2006.01); B05B 1/00 (2006.01); B05B 1/14 (2006.01); D04H 1/46 (2006.01); D04H 18/04 (2012.01)
CPC (source: EP)
D04H 18/04 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0115812 A1 20010308; AT E260142 T1 20040315; AU 6997600 A 20010326; DE 19941729 A1 20010308; DE 50005449 D1 20040401; EP 1210179 A1 20020605; EP 1210179 B1 20040225; JP 2003508644 A 20030304; JP 4163872 B2 20081008
DOCDB simple family (application)
EP 0008119 W 20000821; AT 00958476 T 20000821; AU 6997600 A 20000821; DE 19941729 A 19990901; DE 50005449 T 20000821; EP 00958476 A 20000821; JP 2001520213 A 20000821