Title:
METHOD FOR PRODUCING THIN SPECIFICATION STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2023/138121
Kind Code:
A1
Abstract:
A method for producing a thin specification steel plate, wherein a rolling process comprises: turning off a roller-table cooling water, smoke suppression and a rolling mill side spraying, two pieces of steel in advance; closing a roller guard plate cleaning water hand valve by means of Wuye; and then after an interval of 30 minutes, turning on a steel-rotating-roller-table cooling water for cooling for 1-2 minutes. When a 6 mm steel plate is produced, rough descaling is carried out for one pass, a rolling mill is not descaled, and when steel plates with other thicknesses are produced, the rolling mill is descaled for the first pass; a tapping temperature PDI is set to be 1250 °C; a steel rotating code is 3, and 10+1 rolling passes and 2 forming passes are provided, and the rolling speed is set to be 5.5-5.6 m/s; a wedge-shaped rolling is adjusted to have a shape with small arcs at the head and the tail, and the roller shifting limit value of the last three passes of finishing rolling is manually set according to the on-site plate shape condition.
Inventors:
QIAO MINGLIANG (CN)
WU JUNPING (CN)
WANG GUANGYING (CN)
SUN XUDONG (CN)
CHE CHAO (CN)
HUANG LONG (CN)
ZHENG YUAN (CN)
GU HONGGUANG (CN)
ZHANG BAOQUN (CN)
WANG SHUAIHUI (CN)
WU JUNPING (CN)
WANG GUANGYING (CN)
SUN XUDONG (CN)
CHE CHAO (CN)
HUANG LONG (CN)
ZHENG YUAN (CN)
GU HONGGUANG (CN)
ZHANG BAOQUN (CN)
WANG SHUAIHUI (CN)
Application Number:
PCT/CN2022/125394
Publication Date:
July 27, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
NANJING IRON & STEEL CO LTD (CN)
International Classes:
B21B1/38; B21B15/00; B21B27/02; B21B37/28; B21B37/46; B21B37/58; B21B37/74; B21B43/00; B21B45/08; B21D1/06
Foreign References:
| CN114405997A | 2022-04-29 | |||
| CN111889512A | 2020-11-06 | |||
| CN102671941A | 2012-09-19 | |||
| CN105665443A | 2016-06-15 | |||
| CN109513745A | 2019-03-26 | |||
| CN102179406A | 2011-09-14 | |||
| JP2005296977A | 2005-10-27 |
Attorney, Agent or Firm:
NANJING LI&FENG INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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