EP 3784423 A1 20210303 - CROSS-ROLLING MILL WITH HYDRAULIC ROLLER ACTUATOR
Title (en)
CROSS-ROLLING MILL WITH HYDRAULIC ROLLER ACTUATOR
Title (de)
SCHRÄGWALZWERK MIT HYDRAULISCHER WALZENANSTELLUNG
Title (fr)
LAMINOIR À CYLINDRES OBLIQUES À AJUSTEMENT HYDRAULIQUE DES CYLINDRES
Publication
Application
Priority
- EP 2019060458 W 20190424
- DE 102018003434 A 20180427
Abstract (en)
[origin: WO2019206958A1] The invention relates to a cross-rolling mill (11) for rolling a block over a mandrel so as to form a hollow block, comprising a plurality of working rollers (1, 2), each of which exerts a substantially radially aligned rolling force onto the block. The working rollers are supported in a roll stand, and the gap between the working rollers and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block can be modified. Hydraulic actuators (8, 9), preferably hydraulic capsules, are provided in order to modify the rolling gap and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block. The invention additionally relates to a method for producing a hollow block out of a block using a cross-rolling mill (11) for rolling a block over a mandrel. The cross-rolling mill comprises a plurality of working rollers (1, 2), each of which exerts a substantially radially aligned rolling force onto the block. The working rollers are supported in a roll stand, and the gap between the working rollers and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block can be modified. Hydraulic actuators (8, 9), preferably hydraulic capsules, modify the rolling gap and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block during the rolling process.
IPC 8 full level
B21B 13/00 (2006.01); B21B 19/04 (2006.01)
CPC (source: EP RU US)
B21B 13/00 (2013.01 - RU); B21B 13/008 (2013.01 - EP); B21B 19/04 (2013.01 - EP RU US); B21B 31/32 (2013.01 - RU); B21B 37/58 (2013.01 - RU US); B21B 37/78 (2013.01 - US); B21B 38/10 (2013.01 - US); B21B 13/008 (2013.01 - US); B21B 19/06 (2013.01 - US); B21B 31/32 (2013.01 - EP); B21B 37/78 (2013.01 - EP); B21B 38/00 (2013.01 - EP); B21B 2271/04 (2013.01 - US)
Citation (search report)
See references of WO 2019206958A1
Citation (third parties)
Third party : Anonymous
- US 5295379 A 19940322 - TRBOVICH RUDY M [US], et al
- US 2002000113 A1 20020103 - HOFFGEN WALTER [DE], et al
- US 2015000363 A1 20150101 - CERNUSCHI ETTORE [IT], et al
- CN 102319739 A 20120118 - BEIJING ARITIME INTELLIGENT CONTROL CO LTD
- DE 102016114377 A1 20170302 - SMS GROUP GMBH [DE]
- MICHAEL WILMS: "Tenaris starts advanced seamless pipe production for the demanding US oil and gas industry", MPT. METALLURGICAL PLANT AND PLANT AND TECHNOLOGY INTERNATIONAL, VERLAG STAHLEISEN, DUESSELDORF, DE, vol. 1, no. 2, 20 February 2018 (2018-02-20), DE, pages 44 - 47, XP009530401, ISSN: 0935-7254
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
DOCDB simple family (publication)
WO 2019206958 A1 20191031; CN 112236242 A 20210115; DE 102018003434 A1 20191031; EP 3784423 A1 20210303; EP 3784423 B1 20220914; ES 2932865 T3 20230127; JP 2021519697 A 20210812; JP 7209013 B2 20230119; RU 2758509 C1 20211029; US 11511327 B2 20221129; US 2021229147 A1 20210729
DOCDB simple family (application)
EP 2019060458 W 20190424; CN 201980028632 A 20190424; DE 102018003434 A 20180427; EP 19719287 A 20190424; ES 19719287 T 20190424; JP 2020560134 A 20190424; RU 2020134111 A 20190424; US 201917050852 A 20190424