发明名称 |
Continuous casting method for slab made of titanium or titanium alloy |
摘要 |
A continuous casting method in which a molten metal obtained by melting titanium or a titanium alloy is injected into a bottomless mold having a rectangular cross-section and withdrawn downward while being caused to solidify, wherein a plasma torch (7) is caused to rotate in the horizontal direction above the surface of the molten metal (12) in the mold (2), and a horizontally rotating flow is generated by electromagnetic stirring on at least the surface of the molten metal (12) in the mold (2). It is thereby possible to cast a slab in which the casting surface condition is excellent. |
申请公布号 |
US9333556(B2) |
申请公布日期 |
2016.05.10 |
申请号 |
US201414646366 |
申请日期 |
2014.01.23 |
申请人 |
Kobe Steel, Ltd. |
发明人 |
Kurosawa Eisuke;Nakaoka Takehiro;Tsutsumi Kazuyuki;Oyama Hideto;Kanahashi Hidetaka;Ishida Hitoshi;Takahashi Daiki;Matsuwaka Daisuke |
分类号 |
B22D11/115;B22D11/041;B22D27/02;B22D11/103;B22D11/117;B22D21/00;B22D11/00;B22D11/11;B22D27/04 |
主分类号 |
B22D11/115 |
代理机构 |
Studebaker & Brackett PC |
代理人 |
Studebaker & Brackett PC |
主权项 |
1. A continuous casting method for continuously casting a slab made of titanium or a titanium alloy by injecting molten metal having titanium or a titanium alloy melted therein into a bottomless mold having a rectangular cross section and withdrawing the molten metal downward while being solidified,
wherein a plasma torch is configured to horizontally rotate on the surface of the molten metal in the mold, a horizontally rotating flow is generated by electromagnetic stirring at least on the surface of the molten metal in the mold, when a length of a long side of the slab is denoted as L and a coordinate axis x is set in the long side direction of the slab, where the origin 0 lies at the central part thereof, in a vicinity of mold walls at long side parts of the mold, absolute values of average values of flow rates in the x-axis direction at the surface of the molten metal located in a range of −2L/5≦x≦2L/5 are set to 300 mm/sec or more, and the vicinity of the mold walls at the long side parts of the mold is a location 10 mm away from the mold walls at the long side parts of the mold. |
地址 |
Hyogo JP |