EP 4117833 A1 20230118 - METHOD FOR PRODUCING METAL BEAMS WITH A TOP-HAT PROFILE
Title (en)
METHOD FOR PRODUCING METAL BEAMS WITH A TOP-HAT PROFILE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON METALLENEN TRÄGERN MIT EINEM HUTPROFIL
Title (fr)
PROCÉDÉ DE FABRICATION DE POUTRES MÉTALLIQUES AYANT UN PROFIL EN U RENVERSÉ
Publication
Application
Priority
- DE 102020203094 A 20200311
- EP 2021051117 W 20210120
Abstract (en)
[origin: WO2021180387A1] The invention relates to a method for producing metal beams with a top-hat profile, comprising the hot rolling of slabs (13), ingots (12), billets, preliminary profiles (14) or similar semifinished products in a rolling train, wherein the rolling train comprises at least two roll stands, wherein, using at least two shaping passes during a single rolling process in a number of rolling stations at hot-rolling temperature, preferably simply irregular calibration turns an entering cross section (10) of a one-part semifinished product into an exiting cross section with a top-hat profile (A), which corresponds geometrically more or less to the profile of the finished product.
IPC 8 full level
B21B 1/095 (2006.01)
CPC (source: EP US)
B21B 1/095 (2013.01 - EP US); B21B 1/12 (2013.01 - EP); B21B 1/14 (2013.01 - EP)
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)
DE 102020203094 A1 20210916; CN 115243805 A 20221025; EP 4117833 A1 20230118; JP 2023517515 A 20230426; JP 7476332 B2 20240430; US 2023106710 A1 20230406; WO 2021180387 A1 20210916
DOCDB simple family (application)
DE 102020203094 A 20200311; CN 202180019392 A 20210120; EP 2021051117 W 20210120; EP 21701289 A 20210120; JP 2022552501 A 20210120; US 202117910184 A 20210120