Cause analysis and prevention of fish scale crack defect for steel cord. Issue 3 (March 2021)

• Record Type: Journal Article
• Authors: Qin, Renshu; Yang, Haibo; Sun, Xuewen; Zhang, Shuyan; Bremen, Sebastian
• Is Part Of: IOP conference series. Volume 714:Issue 3(2021)
• Publication Date: 2021-03
• Subjects: steel cord -- steel wire -- fish scale crack -- drawing martensite; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/714/3/032018
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In the production process of a steel cord, for the surface defect of steel wire with a diameter of 3.42mm in the heavy-duty-drawing process of a semi-finished product, macro and micro-analysis were carried out, and the defect causes were verified through production field tests. It has shown that the unprotected hard collision during the transportation and the shoveling after arriving at the factory results in damages to the surface of the wire rod, which cause high temperature from the friction with the drawing die during the drawing process leading to the appearance of drawing martensite, and it eventually leads to the surface defects of the steel wire. Based on the reasons above, comprehensive preventive measures were formulated to reduce the frequency of occurrence for the surface defects on the steel wire.