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1. 发明申请

US20140027024A1 TITANIUM SLAB FOR HOT ROLLING USE AND METHOD OF PRODUCTION OF SAME 审中-公开
标题翻译：用于热轧使用的钛板及其制造方法
公开(公告)号：US20140027024A1
公开(公告)日：2014-01-30
申请号：US14009837
申请日：2012-04-19
申请人： Yoshitsugu Tatsuzawa , Hideki Fujii , Tomonori Kunieda , Kazuhiro Takahashi
发明人： Yoshitsugu Tatsuzawa , Hideki Fujii , Tomonori Kunieda , Kazuhiro Takahashi
IPC分类号： C22F1/18 , C22C14/00
CPC分类号： C22F1/183 , B22D7/005 , B22D11/001 , B22D21/005 , B22D30/00 , C22C14/00
摘要： A titanium slab for hot rolling comprised of a titanium slab obtain by smelting commercially pure titanium, wherein even if the breakdown process is omitted, the strip shaped coil after hot rolling is excellent in surface properties and a method of smelting that titanium slab are provided. The titanium slab according to the present invention is a titanium slab for hot rolling obtained by smelting commercially pure titanium including the β phase stabilizing element Fe, wherein the formation of coarse β phases is suppressed by making the average Fe concentration down to 10 mm from the surface layer of the surface which corresponds to at least the rolling surface of the titanium slab 0.01 mass % or less. A titanium slab obtained by smelting commercially pure titanium can be obtained by cooling until the surface becomes the β transformation point or less, then reheating it to the β transformation point or more, and gradually cooling from the slab surface layer.
摘要翻译：用于热轧的钛板，由通过熔融商业纯钛获得的钛板获得，其中即使省略击穿工艺，热轧后的带状线圈表面性能也优异，并且提供了钛板坯的熔炼方法。根据本发明的钛板是用于通过熔融包括β相稳定化元素Fe的商业上纯钛得到的用于热轧的钛板，其中通过使平均Fe浓度从平均Fe浓度降低到10mm来抑制粗β相的形成对应于钛板的至少轧制面的表面的表层为0.01质量％以下。通过冷却直到表面成为β相变点以下，然后再加热至β相变点以上，并从板坯表面层逐渐冷却，可以获得通过熔融商业纯钛获得的钛板。

2. 发明授权

US10179944B2 Titanium slab for hot rolling use and method of production of same 有权
公开(公告)号：US10179944B2
公开(公告)日：2019-01-15
申请号：US14009837
申请日：2012-04-19
申请人： Yoshitsugu Tatsuzawa , Hideki Fujii , Tomonori Kunieda , Kazuhiro Takahashi
发明人： Yoshitsugu Tatsuzawa , Hideki Fujii , Tomonori Kunieda , Kazuhiro Takahashi
IPC分类号： B22D7/00 , C22F1/18 , B22D11/00 , B22D21/00 , B22D30/00 , C22C14/00
摘要： A titanium slab for hot rolling comprised of a titanium slab obtain by smelting commercially pure titanium, wherein even if the breakdown process is omitted, the strip shaped coil after hot rolling is excellent in surface properties and a method of smelting that titanium slab are provided. The titanium slab according to the present invention is a titanium slab for hot rolling obtained by smelting commercially pure titanium including the β phase stabilizing element Fe, wherein the formation of coarse β phases is suppressed by making the average Fe concentration down to 10 mm from the surface layer of the surface which corresponds to at least the rolling surface of the titanium slab 0.01 mass % or less. A titanium slab obtained by smelting commercially pure titanium can be obtained by cooling until the surface becomes the β transformation point or less, then reheating it to the β transformation point or more, and gradually cooling from the slab surface layer.

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