EP 1804973 B1 20130605 - PRESS ROLLER ANNULAR CASING AND METHOD FOR PRODUCTION THEREOF
Title (en)
PRESS ROLLER ANNULAR CASING AND METHOD FOR PRODUCTION THEREOF
Title (de)
PRESSWALZEN-RINGBANDAGE UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
GARNITURE ANNULAIRE POUR ROULEAUX PRESSEURS ET PROCEDE POUR REALISER LADITE GARNITURE
Publication
Application
Priority
- EP 2005009574 W 20050907
- DE 102004043562 A 20040909
Abstract (en)
[origin: WO2006027215A1] According to the invention, an annular casing for the press rollers of roller presses for the pressure comminutation of particulate material, the outer surface of which has a permanently high degree of hardness and thus high wear resistance, the radially inner region of which however has a lower hardness to avoid casing fractures may be achieved, whereby the material of the casing (10, 11) is made from nodular cast iron, with at least the alloying elements Ni and Mo and a bainitic structure with residual austenite and the boundary layer (11) of the annular casing (10) contains martensite to achieve a self-hardening surface which is constantly renewed by external pressure loading of the casing surface on operating the press roller.
IPC 8 full level
B02C 4/30 (2006.01)
CPC (source: EP US)
B02C 4/305 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006027215 A1 20060316; CN 100581652 C 20100120; CN 101039752 A 20070919; DE 102004043562 A1 20060330; DE 102004043562 B4 20160929; DK 1804973 T3 20130908; EP 1804973 A1 20070711; EP 1804973 B1 20130605; EP 1804973 B9 20160921; US 2008191074 A1 20080814; US 2011061773 A1 20110317; US 7832671 B2 20101116; US 8388772 B2 20130305
DOCDB simple family (application)
EP 2005009574 W 20050907; CN 200580035078 A 20050907; DE 102004043562 A 20040909; DK 05783028 T 20050907; EP 05783028 A 20050907; US 66235005 A 20050907; US 94491510 A 20101112