Global Patent Index - EP 2524748 A1

EP 2524748 A1 20121121 - Foolproof nozzle exchange device and nozzle unit

Title (en)

Foolproof nozzle exchange device and nozzle unit

Title (de)

Fehlersichere Düsenaustauschvorrichtung und Düseneinheit

Title (fr)

Dispositif d'échange de busette infaillible et élément de busette

Publication

EP 2524748 A1 20121121 (EN)

Application

EP 11166213 A 20110516

Priority

EP 11166213 A 20110516

Abstract (en)

The present invention concerns a nozzle unit (1) for use in a nozzle exchange device (100) in a continuous metal casting apparatus, said nozzle exchange device (100) being of the type comprising a loading opening and guiding means (7) for sliding the nozzle unit through said opening into casting position with respect to the nozzle exchange device, wherein said nozzle unit (1) comprises a nozzle plate (1) made of a refractory material clad in a metal can. In order to prevent said plate from being presented to the loading opening with the wrong orientation, i.e., with the trailing edge (2d) first, said plate is provided with at least one lug (6) at or adjacent the trailing edge (2d), said at least one lug (6) being transverse to said first major axis (X1) and extending substantially beyond the perimeter defining the base of the prism such that the loading opening (16) allows engagement of the base (2c, 2d) of the nozzle plate (2) but not of the at least one lug (6). The flexural yield point or ultimate flexural force of said at least one lug (6) is comprised between 10 and 2000 kgf (100 N and 20 kN), which is too high for an operator to reach by hand, but which can be handled very easily by a hydraulic, mechanical, or pneumatic arm (31) which can thus bend or break said at least one lug (6) to push the plate into its casting position, only if loaded with its leading edge first.

IPC 8 full level

B22D 41/56 (2006.01)

CPC (source: EP US)

B22D 41/56 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2524748 A1 20121121; AR 086407 A1 20131211; BR 112013024949 A2 20161220; CN 102784910 A 20121121; CN 202726042 U 20130213; EP 2709782 A1 20140326; JP 2014513633 A 20140605; RU 2013155533 A 20150627; US 2014203051 A1 20140724; WO 2012156073 A1 20121122

DOCDB simple family (application)

EP 11166213 A 20110516; AR P120101717 A 20120515; BR 112013024949 A 20120515; CN 201210153021 A 20120516; CN 201220221815 U 20120516; EP 12723376 A 20120515; EP 2012002071 W 20120515; JP 2014510687 A 20120515; RU 2013155533 A 20120515; US 201214117496 A 20120515