The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Dec. 02, 2011
Wonjae Cho, Dangjin-gun, KR;
Hyojoong Kwon, Gwangju-si, KR;
Kyoungho SO, Namwon-si, KR;
Kaeyoung Lee, Dangjin-gun, KR;
Jutae Choi, Seoul, KR;
Jinsoo Jang, Goyang-si, KR;
Sukhyun Yoo, Dangjin-gun, KR;
Wonjae Cho, Dangjin-gun, KR;
Hyojoong Kwon, Gwangju-si, KR;
Kyoungho So, Namwon-si, KR;
Kaeyoung Lee, Dangjin-gun, KR;
Jutae Choi, Seoul, KR;
Jinsoo Jang, Goyang-si, KR;
Sukhyun Yoo, Dangjin-gun, KR;
Hyundai Steel Company, Incheon, KR;
Abstract
Disclosed is a method of predicting surface quality of a thin slab hot rolled coil. The method includes calculating the Cu equivalent (Cu eq.) of molten steel, applying the calculated Cu equivalent of the molten steel into an equation: 120×(Cu equivalent)−6×(Cu equivalent) to calculate a surface crack index, and predicting the generation of surface defect of the thin slab hot rolled coil by the surface crack index. A method of producing the thin slab hot rolled coil using the same is also provided. The surface crack defect of the thin slab hot rolled coil can be predicted by calculating the Cu equivalent of the molten steel, and thus a thin slab which meets the quality standard demanded by a consumer can be provided, and this results in increased productivity and product reliability.