Title:
鋳鉄、およびその製造方法
Document Type and Number:
Japanese Patent JP4523776
Kind Code:
B2
Abstract:
The present invention provides tough cast iron and cast iron semi-finished products excellent in workability without heat treatment requiring massive heat energy and long time and a method of production enabling these to be efficiently produced, that is, cast iron of ingredients of white cast iron where particles of spheroidal graphite or flattened graphite are dispersed, cast iron where the ingredients of the white cast iron satisfy, by wt%, (%C)≤4.3-(%Si) DIVIDED 3 and C≥1.7% and where the particles of spheroidal graphite are dispersed at a density of 50 particles/mm<2> or more, or cast iron where the particles of flattened graphite have a width of 0.4 mm or less and a length of 50 mm or less.
Inventors:
Hideaki Yamamura
Wataru Ohashi
Wataru Ohashi
Application Number:
JP2004004357A
Publication Date:
August 11, 2010
Filing Date:
January 09, 2004
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B22D11/00; C22C37/04; B22D11/06; B22D11/12; C21D5/04; C22C33/08; C22C37/00; C22C37/06; C22C37/08; C22C37/10
Domestic Patent References:
| JP53095118A | ||||
| JP6073487A | ||||
| JP3281753A | ||||
| JP3122250A | ||||
| JP52054614A |
Attorney, Agent or Firm:
Hiroaki Tamura
Tomoyuki Yabuki
Tsugeko Shigeo
Tomoyuki Yabuki
Tsugeko Shigeo