Effects of nonmetallic inclusions on drawing properties of cold sheets rolled with compact strip production strips
The nonmetallic inclusions were studied for drawable quality ( CQ) cold sheets and deep drawable quality ( DDQ) cold sheets rolled with compact strip production ( CSP) hot strips.The quantity,type and morphology of nonmetallic inclusions were investigated.The results have shown that DDQ cold sheets only contain fine globular A1203 inclusions with diameter of less than 6 pdm,while both fine globular A1203 inclusions and complex inclusions,such as elliptical aluminate inclusion Mg0.Ca0.A1203 and banding calcium aluminate inclusion ( Ca0) m.( A1203) n,exist in DQ cold sheets.Moreover,poor drawing property of DQ cold sheets results from the more inclusions in microstructure.Therefore,it is necessary to control chemical composition of steel during refining in order to improve the drawing property when DQ cold sheets are produced with CSP hot strips.
nonmetallic inclusions cold sheets complex inclusions CSP hot strips
XU Guang HU Haijiang
Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China
国内会议
上海
英文
1-4
2013-06-01（万方平台首次上网日期，不代表论文的发表时间）