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公开(公告)号：US07846554B2
公开(公告)日：2010-12-07
申请号：US11734121
申请日：2007-04-11
CPC分类号： B22D11/0605 , B22D11/0622 , B22F2998/00 , B22F2999/00 , C22C1/1068 , Y10T428/12021 , Y10T428/12028 , Y10T428/12201 , Y10T428/12458 , Y10T428/31678 , C22C29/00 , B22F2207/03
摘要： The present invention discloses a method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a product comprising a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product comprised of an inner layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces. The method yields an MMC having a central layer enriched with particulate matter and sandwiched between metallic outer layers. The product combines the easy mechanical working characteristics and the appearance of the metallic outer layers with the enhanced properties provided by the central MMC layer.
摘要翻译： 本发明公开了一种制备具有颗粒物质的中心层的功能梯度金属基复合材料（MMC）片材的方法。 该方法包括向一对前进的铸造表面提供含有颗粒物质的熔融金属。 使熔融金属固化，同时使熔融金属在前进的铸造表面之间前进，以形成包含第一固体外层，第二固体外层和半固体中心层的产品，其中颗粒物质浓度高于外层 层。 固化中心层以形成固体金属产品，其由夹在外层之间的内层和从铸造表面之间取出金属制品构成。 该方法产生具有富含颗粒物质并夹在金属外层之间的中心层的MMC。 该产品结合了中心MMC层提供的增强性能，轻松的机械加工特性和金属外层外观。
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公开(公告)号：US08697248B2
公开(公告)日：2014-04-15
申请号：US12913972
申请日：2010-10-28
CPC分类号： B22D11/0605 , B22D11/0622 , B22F2998/00 , B22F2999/00 , C22C1/1068 , Y10T428/12021 , Y10T428/12028 , Y10T428/12201 , Y10T428/12458 , Y10T428/31678 , C22C29/00 , B22F2207/03
摘要： The present invention discloses an aluminum alloy product having a first outer layer, a central layer, and a second outer layer. The central layer of the aluminum alloy product has a higher concentration of particulate matter than said first or second outer layers. The particular matter has a size of at least about 30 microns. And, the aluminum alloy product has a thickness ranging from between about 0.004 inches to about 0.25 inches.
摘要翻译： 本发明公开了一种具有第一外层，中央层和第二外层的铝合金制品。 铝合金产品的中心层具有比所述第一或第二外层更高的颗粒物质浓度。 特定的物质具有至少约30微米的尺寸。 而且，铝合金产品的厚度介于约0.004英寸至约0.25英寸之间。
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公开(公告)号：US08403027B2
公开(公告)日：2013-03-26
申请号：US11734113
申请日：2007-04-11
IPC分类号： B22D7/10
CPC分类号： B22D25/06 , B22D11/0605 , B22D11/112 , C22C21/00
摘要： The present invention discloses a method of strip casting an aluminum alloy from immiscible liquids that yields a highly uniform structure of fine second phase particles. The results of the present invention are achieved by using a known casting process to cast the alloy into a thin strip at high speeds. In the method of the present invention, the casting speed is preferably in the region of about 50-300 feet per minute (fpm) and the thickness of the strip preferably smaller than 0.08-0.25 inches. Under these conditions, favorable results are achieved when droplets of the immiscible liquid phase nucleate in the liquid ahead of the solidification front established in the casting process. The droplets of the immiscible phase are engulfed by the rapidly moving freeze front into the space between the Secondary Dendrite Arms (SDA).
摘要翻译： 本发明公开了一种从不混溶的液体中铸造铝合金的方法，其产生高度均匀的细小的第二相颗粒的结构。 本发明的结果是通过使用已知的铸造工艺来将合金高速铸造成薄带来实现的。 在本发明的方法中，铸造速度优选在约50-300英尺/分钟（fpm）的范围内，并且带材的厚度优选地小于0.08-0.25英寸。 在这些条件下，当在铸造过程中建立的固化前沿之前的液体中的不混溶液相的液滴成核时，可获得良好的结果。 不混溶相的液滴被迅速移动的冷冻前部吞入二次枝晶（SDA）之间的空间。
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公开(公告)号：US08381796B2
公开(公告)日：2013-02-26
申请号：US12913999
申请日：2010-10-28
CPC分类号： B22D11/0605 , B22D11/0622 , B22F2998/00 , B22F2999/00 , C22C1/1068 , Y10T428/12021 , Y10T428/12028 , Y10T428/12201 , Y10T428/12458 , Y10T428/31678 , C22C29/00 , B22F2207/03
摘要： A method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter, the particulate matter having a size of at least about 30 microns. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product including a central layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces.
摘要翻译： 制备具有颗粒物质的中心层的功能梯度金属基质复合材料（MMC）片材的方法，所述颗粒物质具有至少约30微米的尺寸。 该方法包括向一对前进的铸造表面提供含有颗粒物质的熔融金属。 使熔融金属固化，同时使前进铸造表面之间的熔融金属前进，形成第一固体外层，第二固体外层和具有比任一个外层更高浓度颗粒物质的半固体中心层。 固化中心层以形成固体金属产品，其包括夹在外层之间的中心层，并从铸造表面之间取出金属制品。
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5.发明授权公开(公告)号：US08956472B2
公开(公告)日：2015-02-17
申请号：US12267303
申请日：2008-11-07
申请人： Ali Unal , David A. Tomes, Jr. , Gavin Wyatt-Mair , David Timmons
发明人： Ali Unal , David A. Tomes, Jr. , Gavin Wyatt-Mair , David Timmons
摘要： Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
摘要翻译： 公开了用于连续铸造具有大量镁的Al-Mg合金板或板产品的系统和方法。 Al-Mg产品具有4或6至8或10重量％ ％Mg，并且耐应力腐蚀开裂和晶间腐蚀。
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