Title:
DEVICE AND METHOD FOR AMELIORATING ROLLER MARKS FORMED ON SURFACE OF THIN STRIP STEEL BY PINCH ROLLERS
Document Type and Number:
WIPO Patent Application WO/2024/066741
Kind Code:
A1
Abstract:
Provided in the present invention is a device for ameliorating roller marks formed on a surface of thin strip steel by pinch rollers. In the design of the device, a local cooling beam is provided at the entrance or exit of pinch rollers to spray liquid nitrogen in the local thermal expansion region of the pinch rollers for cooling, so as to ameliorate local thermal expansion of the pinch rollers in order to adjust the roller gap and pressure between the pinch rollers, thereby reducing roller mark defects formed by the pinch rollers. In addition, further provided in the present invention is a method for alleviating pinch roller marks on hot-rolled thin strip steel during double-roller casting and rolling production. By means of the device and method for ameliorating roller marks formed on a surface of thin strip steel by pinch rollers, the rejection rate of thin strip steel products can be effectively reduced, and the qualification rate and profitability of thin strip steel products are improved.
Inventors:
SHI YIXIN (CN)
ZHANG SHUJUAN (CN)
LIU XINYUAN (CN)
LI TINGTING (CN)
LI XIA (CN)
LI HUALONG (CN)
WU RONGZHOU (CN)
LIU YUJUN (CN)
ZHOU DONGSHENG (CN)
ZHANG SHUJUAN (CN)
LIU XINYUAN (CN)
LI TINGTING (CN)
LI XIA (CN)
LI HUALONG (CN)
WU RONGZHOU (CN)
LIU YUJUN (CN)
ZHOU DONGSHENG (CN)
Application Number:
PCT/CN2023/111280
Publication Date:
April 04, 2024
Filing Date:
August 04, 2023
Export Citation:
Assignee:
INSTITUTE OF RES OF IRON & STEEL JIANGSU PROVINCE/SHA STEEL CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
ZHANGJIAGANG ZHONGMEI UCS TECH CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
ZHANGJIAGANG ZHONGMEI UCS TECH CO LTD (CN)
International Classes:
B21B39/02; B21B28/00; B21B39/10; F25D3/11; F25D29/00
Attorney, Agent or Firm:
LIU , SHEN & ASSOCIATES (CN)
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