Title:
METHOD FOR CONTINUOUSLY CASTING CU-CONTAINING STEEL AND CAST SLAB THEREOF, AND MANUFACTURE OF CU-CONTAINING STEEL PLATE AND STEEL PLATE THEREOF
Document Type and Number:
Japanese Patent JP3126256
Kind Code:
B2
Abstract:
PURPOSE: To provide a method for preventing surface cracking caused by Cu by checking casting and cooling conditions at the time of continuously casting a Cu-containing steel and heating condition at the subsequent hot-rolling process.
CONSTITUTION: At the time of casting the Cu-containing steel having ≥0.1wt.% Cu by using a continuous caster having synchronously shifting type mold, a thin cast slab is produced in the casting condition that the thickness is kept at ≤75mm and the staying time in the temp. range of 1300-1050°C for cooling is set to <1min. Thereafter, after heating so as not to be ≥1050°C, the hot rolling is executed by using a finish hot-rollling mill.
Inventors:
Toshiyuki Kajitani
Masamitsu Wakao
Shigeaki Ogibayashi
Naoki Tokumitsu
Masamitsu Wakao
Shigeaki Ogibayashi
Naoki Tokumitsu
Application Number:
JP8341093A
Publication Date:
January 22, 2001
Filing Date:
April 09, 1993
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21B1/46; B22D11/00; B22D11/06; B22D11/22; C22C33/04; (IPC1-7): B22D11/06; B21B1/46; B22D11/00; B22D11/22; C22C33/04
Domestic Patent References:
| JP4162943A | ||||
| JP63216924A | ||||
| JP441054A | ||||
| JP441055A | ||||
| JP525548A | ||||
| JP5285603A |
Attorney, Agent or Firm:
Shoichi Ui (4 others)