The Development of Thin Gauge UHSS Checker Steel Strips
This paper introduced the design idea and thin gauge stable rolling control practice of the low cost and high rolling stability of ultra-high strength steel checker strip with tensile strength ≥ 700 MPa.The titanium precipitation strengthening and the dynamic recrystallization rolling of F7 frame is used to reduce effectively the rolling deformation resistance of the thin ultra-high strength hot rolled checker steel strips.It improved the rolling stability and extended limit gauge of the rolling mill.The Cr element with the characteristics of refining microstructure and high temperature oxidation resistance are by using to delay pearlite and bainite transformation.It promotes the formation of thin and tight scale,which is conducive to subsequent processing.
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