Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2010-10-27
2011-10-11
Lin, Kuang (Department: 1735)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S504000
Reexamination Certificate
active
08033319
ABSTRACT:
Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions. The continuous casting method stably ensures excellent center segregation qualities over a long time in casting of high-strength steel with high crack susceptibility or steel grade for extremely thick plate product.
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Hiraki Sei
Okada Nobuhiro
Suwa Hidetoshi
Takatani Kouji
Yamanaka Akihiro
Clark & Brody
Lin Kuang
Sumitomo Metal Industries Ltd.
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