Title:
チルを含まない球状黒鉛鋳鉄の半凝固金型鋳造品
Document Type and Number:
Japanese Patent JP6823311
Kind Code:
B2
Abstract:
The present invention provides a casting method and cast product of spherical graphite cast iron, in which, even with a small modulus, there is no chill, the spherical graphite in the tissue is further made ultrafine, the dispersion of the particle diameter is small, and the number of the particles is several times that of the conventional one in the as cast state where heat treatment is not carried out. A casting method of a spherical graphite cast iron includes a melting process, a spheroidizing treatment process, an inoculation process, and a casting process, in which the original molten metal after the inoculation process is poured and filled up to a product space through a gate of a metal mold; where the original molten metal is controlled to a semi-solidification temperature range, before being filled up to the product space.
Inventors:
Masayuki Itamura
Haruki Itoto
Mitsuru Adachi
Haruki Itoto
Mitsuru Adachi
Application Number:
JP2016172355A
Publication Date:
February 03, 2021
Filing Date:
September 04, 2016
Export Citation:
Assignee:
Tohoku University
Fact corporation
Fact corporation
International Classes:
B22D27/20; B22C9/06; B22D1/00; B22D5/00; B22D27/04; B22D27/09; B22D30/00; C21C1/10
Domestic Patent References:
| JP2006063396A | ||||
| JP2004223608A | ||||
| JP56035993B2 | ||||
| JP9239514A | ||||
| JP8090191A |
Foreign References:
| WO2010103641A1 |
Other References:
糸藤春喜 ほか,球状黒鉛鋳鉄の無チル金型鋳造,鋳造工学第166回全国講演大会講演概要集,公益社団法人 日本鋳造工学会,2015年 5月 1日,p.96
Attorney, Agent or Firm:
Hisao Fukumori