Global Patent Index - EP 1844172 A1

EP 1844172 A1 2007-10-17 - IRON-BASED POWDER COMBINATION

Title (en)

IRON-BASED POWDER COMBINATION

Title (de)

PULVERKOMBINATION AUF EISENBASIS

Title (fr)

COMBINAISON DE POUDRE A BASE DE FER

Publication

EP 1844172 A1 (EN)

Application

EP 06701553 A

Priority

  • SE 2006000080 W
  • SE 0500261 A

Abstract (en)

[origin: WO2006083206A1] The invention relates to a powder metallurgical combination comprising an iron-based powder A essentially consisting of core particles of iron pre-alloyed with molybdenum and having 6-15%, preferably 8-12% by weight of copper diffusion alloyed to the core particles, an iron-based powder B essentially consisting of particles of iron pre-alloyed with molybdenum and having 4.5-8%, preferably 5-7% by weight of nickel diffusion alloyed to the core particles, and an iron-based powder C essentially consisting of particles of iron pre-alloyed with molybdenum. The invention also relates to the powders A and B per se. Further the invention relates to a method for preparing an iron-based sintered component comprising 0.3-2% by weight of molybdenum, 0.2-2%, preferably 0.4-0.8% by weight of copper and 0.1-4% by weight of nickel and to a method to obtain a sintered component having a predetermined strength and a predetermined dimensional change during sintering.

IPC 8 full level (invention and additional information)

C22C 33/02 (2006.01); B22F 1/00 (2006.01); C22C 38/08 (2006.01); C22C 38/16 (2006.01)

CPC (invention and additional information)

C22C 33/0207 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/16 (2013.01)

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

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

WO 2006083206 A1 20060810; BR PI0607356 A2 20090901; CA 2595905 A1 20060810; CN 100532606 C 20090826; CN 101111617 A 20080123; EP 1844172 A1 20071017; EP 1844172 A4 20100721; JP 2008528811 A 20080731; JP 5108531 B2 20121226; KR 100970796 B1 20100716; KR 20070099690 A 20071009; MX 2007009531 A 20080212; RU 2007133101 A 20090310; RU 2366537 C2 20090910; TW 200632111 A 20060916; TW I325896 B 20100611; US 2008089801 A1 20080417; ZA 200705662 B 20090128

INPADOC legal status


2016-08-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20160714

2010-07-21 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20100623

2008-05-14 [RIN1] INVENTOR (CORRECTION)

- Inventor name: LARSSON, MATS

2007-10-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070615

2007-10-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2007-10-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK YU