EP 3017074 A1 20160511 - WEAR-RESISTANT UNCOATED STEEL PART
Title (en)
WEAR-RESISTANT UNCOATED STEEL PART
Title (de)
VERSCHLEISSFESTES UNBESCHICHTETES STAHLTEIL
Title (fr)
ÉLÉMENT EN ACIER NON REVÊTU RÉSISTANT À L'USURE
Publication
Application
Priority
- DE 102013107100 A 20130705
- EP 2014063259 W 20140624
Abstract (en)
[origin: CA2916155A1] The invention relates to a wear-resistant, at least partially uncoated steel part composed of a hardenable steel grade, which steel part has been produced from a semi-finished product by hot-forming and/or hardening. The invention further relates to a method for producing a wear-resistant, at least partially uncoated processing, conveying, and/or fracturing means of agricultural machines, conveying machines, mining machines, or construction machines from a semi-finished product, wherein the semi-finished product is heated to a temperature above the Ac1 conversion temperature and is subsequently hot-worked and/or hardened. The problem of proposing at least partially uncoated steel parts whose suitability for use with abrasive material is improved is solved for a steel part in that the steel part at least partially has a surface region that has been hardened to a depth of at most 100 µm, preferably to a depth of up to 40 µm, by means of surface hardening before the hot working and/or hardening.
IPC 8 full level
C21D 9/00 (2006.01); C21D 1/06 (2006.01); C21D 1/18 (2006.01); C23C 8/22 (2006.01); C23C 8/26 (2006.01); C23C 8/80 (2006.01)
CPC (source: EP US)
C21D 1/06 (2013.01 - EP US); C21D 1/18 (2013.01 - EP US); C21D 1/673 (2013.01 - EP); C21D 6/00 (2013.01 - EP US); C21D 8/005 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); C21D 9/22 (2013.01 - EP US); C23C 8/22 (2013.01 - EP US); C23C 8/26 (2013.01 - EP US); C23C 8/80 (2013.01 - EP US); C21D 7/13 (2013.01 - EP US); C21D 9/18 (2013.01 - EP US); C21D 2221/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2015000740A1
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)
DE 102013107100 A1 20150108; CA 2916155 A1 20150108; CA 2916155 C 20171107; CN 105358720 A 20160224; EP 3017074 A1 20160511; EP 3017074 B1 20181017; ES 2704437 T3 20190318; JP 2016528381 A 20160915; KR 20160029102 A 20160314; US 2016145705 A1 20160526; WO 2015000740 A1 20150108
DOCDB simple family (application)
DE 102013107100 A 20130705; CA 2916155 A 20140624; CN 201480038539 A 20140624; EP 14734430 A 20140624; EP 2014063259 W 20140624; ES 14734430 T 20140624; JP 2016522440 A 20140624; KR 20167002943 A 20140624; US 201414903022 A 20140624