(19)
(11) EP 1 413 373 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.11.2005 Bulletin 2005/48

(43) Date of publication A2:
28.04.2004 Bulletin 2004/18

(21) Application number: 03253376.2

(22) Date of filing: 29.05.2003
(51) International Patent Classification (IPC)7: B22D 17/00, B22D 27/02, B22D 1/00
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 25.09.2002 KR 2002058163
16.10.2002 KR 2002063162
17.01.2003 KR 2003003250
04.03.2003 KR 2003013515

(71) Applicant: Chunpyo Hong
Seoul (KR)

(72) Inventors:
  • Chunpyo, Hong
    Eunpyung-Gu, Seoul (KR)
  • Jaemin, Jim
    Ilsan-Gu, Goyang-City, Kyungki-Do (KR)
  • Minsoo, Kim
    Seoul (KR)
  • Masayuki, Itamura
    Ube-shi, Yamaguchi-ken (JP)

(74) Representative: Browne, Robin Forsythe 
Urquhart-Dykes & Lord LLP Tower North Central Merrion Way
Leeds LS2 8PA
Leeds LS2 8PA (GB)

   


(54) Method and apparatus for pressure diecasting a semi-solid metallic slurry


(57) Provided are a die casting method and apparatus for rheocasting that ensure the manufacture of products with a fine, uniform, spherical particle structure, with improvements in energy efficiency and mechanical properties, cost reduction, convenience of casting, and shorter manufacturing time. The die casting method involves applying an electromagnetic field to a slurry manufacturing domain in a sleeve (2) having an end through which a plunger (3) is inserted and the other end connected to a casting die (4) with a mold cavity (43), loading a molten metal into the slurry manufacturing domain to manufacture a semi-solid metallic slurry, and moving the plunger toward the casting die to push the metallic slurry into the mold cavity.






Search report