METHOD FOR PRODUCING SPHEROICAL GRAPHITE CAST IRON PRODUCT

Title:

METHOD FOR PRODUCING SPHEROICAL GRAPHITE CAST IRON PRODUCT

Document Type and Number:

Japanese Patent JP2001269767

Kind Code:

A

Abstract:

To provide a producing method of a spheroidal graphite cast iron product in which a flake graphite cast iron structure can be formed in at least a part of the surface of the spheroidal graphite cast iron product when the casting is performed.

Powdery iron sulfide is blended into either molding sand of a master mold 2 or a core 3 in the mod, and the iron sulfide is reacted with magnesium in the molten cast iron on the boundary of the mold at the portion blended with this iron sulfide and the magnesium having the graphite spheroidizing action, is consumed and the flake graphite is crystallized in this portion so as to form the flake graphite cast iron structure excellent in the wear resistance and the vibration damping property on the surface layer of the spheroidal graphite cast iron product.

Inventors:

UMEMOTO KOSAKU
MICHIURA YOSHISADA
KITAGAWA MASAYOSHI
OIDE TAKU

Application Number:

JP2000132964A

Publication Date:

October 02, 2001

Filing Date:

March 27, 2000

Export Citation:

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Assignee:

KURIMOTO LTD

International Classes:

B22D1/00; B22C3/00; B22D27/18; C22C33/10; (IPC1-7): B22D27/18; B22C3/00; B22D1/00

Domestic Patent References:

JPS58209443A	1983-12-06
JPS609573A	1985-01-18
JPH0724564A	1995-01-27
JPH06106331A	1994-04-19
JPH07155929A	1995-06-20
JPS6349357A	1988-03-02
JPS60238058A	1985-11-26
JPS60247437A	1985-12-07

Attorney, Agent or Firm:

Bunji Kamata (2 outside)

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