(19)
(11) EP 0 955 114 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.08.2001 Bulletin 2001/31

(43) Date of publication A2:
10.11.1999 Bulletin 1999/45

(21) Application number: 99108817.0

(22) Date of filing: 04.05.1999
(51) International Patent Classification (IPC)7: B22F 3/03, B22F 7/08, B30B 11/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.05.1998 IT VI980091

(71) Applicants:
  • Sintech S.r.L.
    36050 Bolzano, Vicentino (VI) (IT)
  • Said S.p.A.
    36033 Isola Vicentina (Vincenza) (IT)

(72) Inventors:
  • Sinico, Claudio
    36010 Monticello, Conte Otto (VI) (IT)
  • Bonato, Giannino
    36015 Schio (VI) (IT)

(74) Representative: Bonini, Ercole 
c/o STUDIO ING. E. BONINI SRL Corso Fogazzaro 8
36100 Vicenza
36100 Vicenza (IT)

   


(54) Method and mould for cold compacting powders to be sintered


(57) The invention is a method for the cold agglomeration of mixtures of metallic and non-metallic powders (P) on to the outer perimetral edge (B) of a core (A), comprising the following operations: positioning the core (A) inside a mould (1) between a pair of core-pressing means (7, 7') opposite each other; distributing the powder mixture (P) on to the outer perimetral edge (B) of the core (A); agglomerating the powders (P) together and on the edge (B) of the core through powder-pressing means (21, 22, 23, 24); shifting the core-pressing means, the powder-pressing means and the core with respect to the plane on which the core is arranged; moving the powder-pressing means away from the powders (P) agglomerated on the edge (B) of the core (A); moving at least one of the core-pressing means (7, 7') away from the core; extracting the core (A) from the mould.






Search report