EP 4277758 A1 20231122 - METHOD FOR CALIBRATING THE DIMENSIONS OF A T-BRANCH PIPE AND DEVICE FOR IMPLEMENTING THE METHOD
Title (en)
METHOD FOR CALIBRATING THE DIMENSIONS OF A T-BRANCH PIPE AND DEVICE FOR IMPLEMENTING THE METHOD
Title (de)
VERFAHREN ZUR KALIBRIERUNG DER ABMESSUNGEN EINES T-VERZWEIGUNGSROHRS UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
Title (fr)
PROCÉDÉ DE CALIBRAGE DES DIMENSIONS D'UN TUYAU D'EMBRANCHEMENT EN T ET DISPOSITIF POUR METTRE EN OEUVRE LE PROCÉDÉ
Publication
Application
Priority
- FI 20217010 A 20210115
- FI 2021050895 W 20211220
Abstract (en)
[origin: WO2022152963A1] The invention relates to a method and device for calibrating the dimensions of a T-branch pipe (1). The T- branch pipe comprises a standard pipe (2) and a collar (3) forming a branch opening, the collar diameter of which is made larger than the desired final size in the longitudinal direction (x) of the standard pipe (2) and smaller than the desired final size in the transverse direction. The collar (3) is flared out by means of a first calibration force (FI) in one direction which is transverse to the longitudinal direction (x) of the standard pipe (2). The standard pipe (2) is flared out locally by means of a second calibration force (F2) and a third calibration force (F3) in two directions. The said flaring out is carried out in stages in such a way that all three calibration forces (FI, F2 ja F3) eventually act simultaneously. When the calibration forces (FI, F2 and F3) act, the standard pipe (2) is reduced in the vicinity of its ends by means of a fourth force (F4) which acts in parallel with the axial direction (y) of the collar (3).
IPC 8 full level
B21C 37/29 (2006.01); B21D 31/00 (2006.01); B21D 37/06 (2006.01); F16L 41/04 (2006.01)
CPC (source: EP FI)
B21C 37/29 (2013.01 - EP FI); B21C 37/292 (2013.01 - FI); B21C 37/30 (2013.01 - EP); B21D 3/14 (2013.01 - EP); B21D 31/00 (2013.01 - FI); B21D 37/06 (2013.01 - FI); B21D 41/028 (2013.01 - EP); F16L 41/045 (2013.01 - FI); F16L 41/021 (2013.01 - EP)
Citation (search report)
See references of WO 2022152963A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022152963 A1 20220721; EP 4277758 A1 20231122; FI 129931 B 20221115; FI 20217010 A1 20220716; JP 2024503112 A 20240124
DOCDB simple family (application)
FI 2021050895 W 20211220; EP 21919205 A 20211220; FI 20217010 A 20210115; JP 2023543126 A 20211220