(19)
(11) EP 2 343 142 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.05.2014 Bulletin 2014/20

(43) Date of publication A2:
13.07.2011 Bulletin 2011/28

(21) Application number: 10175876.1

(22) Date of filing: 08.09.2010
(51) International Patent Classification (IPC): 
B22F 3/10(2006.01)
C22C 32/00(2006.01)
C22C 47/14(2006.01)
B82Y 30/00(2011.01)
C04B 35/56(2006.01)
C22C 1/10(2006.01)
C22C 33/02(2006.01)
B22F 1/00(2006.01)
C04B 35/01(2006.01)
(84) Designated Contracting States:
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 SE SI SK SM TR
Designated Extension States:
BA ME RS

(30) Priority: 08.09.2009 HU 0900560

(71) Applicant: Dutkay, György
8000 Székesfehérvar (HU)

(72) Inventor:
  • Dutkay, György
    8000 Székesfehérvar (HU)

(74) Representative: Szabo, Zsolt 
Danubia Patent & Law Office LLC Bajcsy-Zsilinszky út 16
1051 Budapest
1051 Budapest (HU)

   


(54) Powder metallurgical composition and process for manufacturing nanofiber reinforced powder metallurgy product from the same


(57) According to the invention a powder metallurgical powder composition is provided that comprises as a base material non-agglomerating metallic and/or metal oxide and/or metal carbide grains with a mean grain size of 0.01-5 mm and a high melting point lubricant admixed to the base material in powdery form in the amount of 0.01-10% calculated per unit mass of the base material. The melting temperature of said high melting point lubricant is at least 550 degrees Celsius, but lower than the melting temperature of the grains that have the lowest melting temperature in the base material. The high melting point lubricant comprises as a major component inorganic silica (SiO2) and additionally at least one further oxide selected from the group of inorganic alkali metal oxides, inorganic alkali-earth metal oxides and inorganic semimetal oxides differing from silica.







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