专利类型:  发明专利
申请号:  US201414437250
申请日期:  2014-01-10
公开号:  US9475114B2
公开日期:  2016-10-25
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
地址:  
摘要:  By controlling the temperature (T S ) of a surface portion ( 11 a ) of an ingot ( 11 ) in a contact region ( 16 ) between a mold ( 2 ) and the ingot ( 11 ) and/or a passing heat flux (q) from the surface portion ( 11 a ) of the ingot ( 11 ) to the mold ( 2 ) in the contact region ( 16 ), the thickness (D) in the contact region ( 16 ) of a solidified shell ( 13 ) obtained by the solidification of molten metal ( 12 ) is brought into a predetermined range. Consequently, an ingot having a good casting surface state can be cast.
主权项:  A continuous casting method for continuously casting an ingot made of titanium or a titanium alloy by injecting molten metal having titanium or a titanium alloy melted therein into a bottomless mold and withdrawing the molten metal downward while being solidified, wherein, by controlling temperature of a surface portion of the ingot in a contact region between the mold and the ingot, and/or a passing heat flux from the surface portion of the ingot to the mold in the contact region, thickness of a solidified shell formed by solidifying the molten metal in the contact region is brought into a predetermined range, wherein average values of the temperature Ts of the surface portion of the ingot in the contact region are controlled into the range of 800° C.<T S <1250° C., and wherein the thickness D of the solidified shell in the contact region is controlled into the range of 0.4 mm<D<4 mm, wherein the contact region is limited to a region near a meniscus.
专利分类号:  B22D11/20;B22D11/22;B22D11/00;B22D11/041;B22D21/02;B22D11/18;B22D11/055;B22D23/10
专利状态:  有效专利
代理人:  
代理机构:  Studebaker & Brackett PC
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