Title:
METHOD FOR CONTROLLING BRITTLE INCLUSIONS OF TIRE CORD STEEL
Document Type and Number:
WIPO Patent Application WO/2023/151228
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for controlling brittle inclusions of tire cord steel. The method comprises: adding an alloy during primary smelting and tapping in a furnace; adding silicon carbide and synthetic slag to the slag surface of a ladle to perform slagging after tapping is finished; adding an alloy and feeding a carbon line during a refining stage; and adding lime, silicon carbide and synthetic slag and electrifying same to melt the slag, wherein the furnace slag components satisfy: CaO/SiO2 ＝ 0.9-1.2, Al2O3: ≤ 5%, MgO: 4-8%, and [MnO+T.Fe] = 2-5%.
Inventors:
ZHAO JIAQI (CN)
ZHANG LIANBING (CN)
MA JIANCHAO (CN)
MA HAN (CN)
ZHANG LIANBING (CN)
MA JIANCHAO (CN)
MA HAN (CN)
Application Number:
PCT/CN2022/105198
Publication Date:
August 17, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
ZHANGJIAGANG RONGSHENG SPECIAL STEEL CO LTD (CN)
INSTITUTE OF RES OF IRON AND STEEL JIANGSU PROVINCE/SHA STEEL CO LTD CN (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
INSTITUTE OF RES OF IRON AND STEEL JIANGSU PROVINCE/SHA STEEL CO LTD CN (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
International Classes:
B22D41/02; C22C33/06; C21C7/00; C21C7/06; C22C38/02; C22C38/04; C22C38/06; C22C38/18
Foreign References:
| CN114438398A | 2022-05-06 | |||
| CN111041352A | 2020-04-21 | |||
| CN111485052A | 2020-08-04 | |||
| CN108004374A | 2018-05-08 | |||
| CN103966386A | 2014-08-06 | |||
| CN107385139A | 2017-11-24 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: