Title:
連続鋳造鋳片とその製造方法および製造装置、厚鋼板の製造方法および製造装置
Document Type and Number:
Japanese Patent JP6390718
Kind Code:
B2
Abstract:
A primary object of the present invention is to provide a continuous-cast slab where central porosity is reduced by surly crushing the slab, and a method and apparatus of manufacturing the same. The continuous-cast slab 1 having horizontally symmetrical granular equiaxed crystals at least in the center in the thickness direction includes a first reduction dent 2 and a second reduction dent 3 that further dents from the bottom surface of the first reduction dent 2 and is narrower than the first reduction dent 2 at least on one long side surface. Such a configuration can makes it possible to achieve the continuous-cast slab 1 of no more than 2.5 × 10 -4 cm 3 /g in a maximum porosity volume while segregation is reduced.
Inventors:
Toshiaki Mizoguchi
Uchiyama Yuyo
Sakurai Hideaki
High Ryosuke Ta
Shinji Nagai
Shuntaro Imai
Daisuke Sakai
Uchiyama Yuyo
Sakurai Hideaki
High Ryosuke Ta
Shinji Nagai
Shuntaro Imai
Daisuke Sakai
Application Number:
JP2016569489A
Publication Date:
September 19, 2018
Filing Date:
January 13, 2016
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B22D11/128; B21B1/00; B22D11/00; B22D11/20
Domestic Patent References:
| JP9285856A |
Foreign References:
| WO2014178369A1 | ||||
| WO2013105670A1 |
Attorney, Agent or Firm:
Noriyuki Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto
Akihiko Yamashita
Kishimoto Tatsuto