EP 3288694 B1 20190605 - METHOD FOR INDUCTION BEND FORMING A COMPRESSION-RESISTANT PIPE HAVING A LARGE WALL THICKNESS AND A LARGE DIAMETER AND INDUCTION PIPE BENDING DEVICE
Title (en)
METHOD FOR INDUCTION BEND FORMING A COMPRESSION-RESISTANT PIPE HAVING A LARGE WALL THICKNESS AND A LARGE DIAMETER AND INDUCTION PIPE BENDING DEVICE
Title (de)
VERFAHREN ZUM INDUKTIONSBIEGEUMFORMEN EINES DRUCKFESTEN ROHRS MIT GROSSER WANDSTÄRKE UND GROSSEM DURCHMESSER UND INDUKTIONS-ROHRBIEGEVORRICHTUNG
Title (fr)
PROCÉDÉ DE CINTRAGE PAR INDUCTION D'UN TUBE RÉSISTANT À LA PRESSION DE GRANDE ÉPAISSEUR DE PAROI ET DE GRAND DIAMÈTRE ET DISPOSITIF DE CINTRAGE PAR INDUCTION
Publication
Application
Priority
- DE 102015106571 A 20150428
- DE 2016100189 W 20160421
Abstract (en)
[origin: WO2016173584A1] For induction bend forming a compression-resistant pipe (1) having a large wall thickness and a large diameter, the pipe (1) is vertically compressed in a press unit (50) before it is introduced into an annular inductor to heat it and a cross-section in the shape of a lying oval is imposed onto the pipe (1) in said press unit. In addition, at least during an interval of the pipe bending process a temperature profile with a lower temperature on an outer surface of the bend and a higher temperature on an inner surface of the bend is set by means of a transverse displacement of the inductor relative to the pipe (1).
IPC 8 full level
B21D 7/025 (2006.01); B21D 7/16 (2006.01)
CPC (source: EP KR RU US)
B21D 7/025 (2013.01 - EP KR RU US); B21D 7/162 (2013.01 - EP KR US)
Citation (examination)
DE 3150381 A1 19830623 - MANNESMANN AG [DE]
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)
WO 2016173584 A1 20161103; BR 112017022211 A2 20180703; BR 112017022211 B1 20210126; CA 2979430 A1 20161103; CN 107567358 A 20180109; DE 102015106571 A1 20161103; EP 3288694 A1 20180307; EP 3288694 B1 20190605; ES 2744610 T3 20200225; JP 2018514387 A 20180607; KR 20170141766 A 20171226; MX 2017012647 A 20180511; PL 3288694 T3 20200228; RU 2679502 C1 20190211; SG 11201707655P A 20171030; US 2018043410 A1 20180215
DOCDB simple family (application)
DE 2016100189 W 20160421; BR 112017022211 A 20160421; CA 2979430 A 20160421; CN 201680018768 A 20160421; DE 102015106571 A 20150428; EP 16731774 A 20160421; ES 16731774 T 20160421; JP 2017556525 A 20160421; KR 20177034346 A 20160421; MX 2017012647 A 20160421; PL 16731774 T 20160421; RU 2017134400 A 20160421; SG 11201707655P A 20160421; US 201615556837 A 20160421