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1. 发明申请

WO2010042469A3 PROCESS AND APPARATUS FOR DIRECT CHILL CASTING 审中-公开
标题翻译：用于直接冷却铸造的工艺和设备
公开(公告)号：WO2010042469A3
公开(公告)日：2010-06-03
申请号：PCT/US2009059627
申请日：2009-10-06
申请人： ALCOA INC , GILDEMEISTER DAVID R , KIRBY JAMES L , RICHTER RAY T
发明人： GILDEMEISTER DAVID R , KIRBY JAMES L , RICHTER RAY T
IPC分类号： B22D11/04 , B22D11/049 , B22D11/059 , B22D11/07
CPC分类号： B22D11/0401 , B22D11/04 , B22D11/049 , B22D11/059 , B22D11/07
摘要： The present invention discloses an apparatus for direct chill casting of metal comprises an open ended mold cavity formed by a casting surface with an upper end and a lower end, a refractory sleeve located at the upper end of the mold cavity being adapted to receive molten metal, a coolant delivery system below the lower end of the mold for supplying coolant to chill the descending hot metal body, and a boron nitride ring mounted between the refractory sleeve and the peripheral wall of the mold cavity. In another embodiment, the apparatus for direct chill casting of metal further includes a downspout instead of a refractory sleeve that is located at the upper end of the mold cavity being adapted to receive molten metal having a flow control rod or a floating baffle where the flow control rod controls the amount of molten metal to enter the mold cavity. In a further embodiment, a process for the direct chill casting of a metal comprising the steps of continuously filling the upper end of the cavity with molten metal and permitting the molten metal to move downwardly through the mold to form an ingot, and simultaneously chilling the ingot by spraying coolant on the ingot from the coolant delivery system is provided.
摘要翻译：本发明公开了一种用于金属的直接冷硬铸造的设备，包括由具有上端和下端的铸造表面形成的开放式模腔，位于模腔上端的耐火套筒适于接收熔融金属用于供应冷却剂以冷却下降的热金属体的冷却剂输送系统，以及安装在耐火套筒和模腔的周壁之间的氮化硼环。在另一个实施例中，用于金属的直接冷硬铸造的设备还包括落水管而不是位于模腔上端的耐火套管，该耐火套管适于接收具有流量控制棒或浮动挡板的熔融金属，控制棒控制熔融金属进入模腔的量。在另一个实施方案中，一种用于金属的直接冷硬铸造的方法包括以下步骤：用熔融金属连续地填充空腔的上端，并允许熔融金属向下移动通过铸模以形成铸锭，同时冷却提供了通过将冷却剂喷洒在来自冷却剂输送系统的锭块上的锭块。

2. 发明申请

WO2010042469A2 PROCESS AND APPARATUS FOR DIRECT CHILL CASTING 审中-公开
标题翻译：直接冷冻铸造的工艺和装置
公开(公告)号：WO2010042469A2
公开(公告)日：2010-04-15
申请号：PCT/US2009/059627
申请日：2009-10-06
申请人： ALCOA INC. , GILDEMEISTER, David, R. , KIRBY, James, L. , RICHTER, Ray, T.
发明人： GILDEMEISTER, David, R. , KIRBY, James, L. , RICHTER, Ray, T.
IPC分类号： B22D11/04 , B22D11/049 , B22D11/059 , B22D11/07
CPC分类号： B22D11/0401 , B22D11/04 , B22D11/049 , B22D11/059 , B22D11/07
摘要： The present invention discloses an apparatus for direct chill casting of metal comprises an open ended mold cavity formed by a casting surface with an upper end and a lower end, a refractory sleeve located at the upper end of the mold cavity being adapted to receive molten metal, a coolant delivery system below the lower end of the mold for supplying coolant to chill the descending hot metal body, and a boron nitride ring mounted between the refractory sleeve and the peripheral wall of the mold cavity. In another embodiment, the apparatus for direct chill casting of metal further includes a downspout instead of a refractory sleeve that is located at the upper end of the mold cavity being adapted to receive molten metal having a flow control rod or a floating baffle where the flow control rod controls the amount of molten metal to enter the mold cavity. In a further embodiment, a process for the direct chill casting of a metal comprising the steps of continuously filling the upper end of the cavity with molten metal and permitting the molten metal to move downwardly through the mold to form an ingot, and simultaneously chilling the ingot by spraying coolant on the ingot from the coolant delivery system is provided.
摘要翻译：本发明公开了一种用于金属直接冷铸的设备，包括由具有上端和下端的铸造表面形成的开口模腔，位于模腔上端的耐火套管适于容纳熔融金属，在模具下端下方的冷却剂输送系统，用于供应冷却剂以冷却下降的热金属体;以及氮化硼环，其安装在耐火套筒和模具腔的周壁之间。在另一个实施例中，用于金属的直接冷却铸造的装置还包括下浇口而不是位于模腔上端的耐火套筒，适于容纳具有流动控制棒或浮动挡板的熔融金属，控制杆控制熔融金属进入模腔的量。在另一个实施例中，一种用于直接冷却铸造金属的方法，包括以下步骤：用熔融金属连续地填充空腔的上端，并允许熔融金属向下移动通过模具以形成锭，同时冷却提供了通过从冷却剂输送系统喷射冷却剂在锭上的锭。

3. 发明申请

WO0230822A3 ALUMINUM ALLOYS HAVING IMPROVED CAST SURFACE QUALITY 审中-公开
标题翻译：具有改进的铸件表面质量的铝合金
公开(公告)号：WO0230822A3
公开(公告)日：2002-09-06
申请号：PCT/US0142260
申请日：2001-09-21
申请人： ALCOA INC , DEYOUNG DAVID H , MCGINNIS WILLIAM F , RICHTER RAY T , WIESNER JEFFREY J
发明人： DEYOUNG DAVID H , MCGINNIS WILLIAM F , RICHTER RAY T , WIESNER JEFFREY J
IPC分类号： C22C1/02 , C22C1/03 , C22C21/00
CPC分类号： C22C1/03 , C22C1/026 , C22C21/00 , Y10T29/49988
摘要： Aluminum alloy compositions are disclosed, which include small amounts of calcium that result in improved surface properties of the cast aluminum. The calcium, and up to 0.25% grain refiners, are added along with alkaline earth metals, transition metals and/or rare earth metals to the aluminum alloy as a melt. The addition results in improved appearance, substantially reduced surface imperfections and reduced surface oxidation in cast ingot aluminum and aluminum alloys. The addition of small amounts of these additives, surprisingly were found to substantially eliminate vertical folds, pits and ingot cracking in more than one ingot casting technique. The additions also improved the appearance of the ingots, including reflectance. As a result, the ingots could be reduced or worked essentially right out of the casting without first conditioning the surface by, for example, scalping. Also disclosed is a method of improving the surface properties and preventing surface imperfections and cracking of cast aluminum alloys. The method includes the steps of adding calcium to a molten aluminum alloy that is essentially free of Be casting the aluminum alloy using any commonly used technique.
摘要翻译：公开了铝合金组合物，其包括导致改善铸铝表面性能的少量钙。钙和高达0.25％的晶粒细化剂与碱土金属，过渡金属和/或稀土金属一起作为熔体与铝合金一起加入。添加结果导致铸造铝和铝合金的外观改善，表面缺陷显着减少和表面氧化降低。发现少量这些添加剂令人惊奇地发现，在多于一种铸锭技术中基本上消除了垂直折痕，凹坑和锭裂纹。添加物还改善了锭的外观，包括反射率。结果，可以通过例如剥皮来首先对表面进行调理，从而可以将铸锭基本上正确地压出或加工成铸件。还公开了改进表面性能并防止铸铝合金的表面缺陷和开裂的方法。该方法包括以下步骤：使用任何常用技术将基本上不用铸造铝合金的熔融铝合金添加钙。

4. 发明申请

WO0194050A3 METHOD AND APPARATUS FOR REDUCING CROP LOSSES DURING SLAB AND INGOT ROLLING 审中-公开
标题翻译：方法和装置，用于减少在SLAB和INGOT滚动期间的作物损失
公开(公告)号：WO0194050A3
公开(公告)日：2002-07-18
申请号：PCT/US0115488
申请日：2001-05-14
申请人： ALCOA INC , KLOSTERMAN LAWRENCE E , RICHTER RAY T , CROWLEY MARK D , MASLANKA ANDRZEJ
发明人： KLOSTERMAN LAWRENCE E , RICHTER RAY T , CROWLEY MARK D , MASLANKA ANDRZEJ
IPC分类号： B21B1/02 , B21B3/00 , B21B15/00 , B22D7/00 , B22D11/00 , B22D11/049 , B22D11/08 , B22D11/12
CPC分类号： B22D11/00 , B21B1/02 , B21B1/024 , B21B1/026 , B21B15/0007 , B21B2003/001 , B21B2015/0014 , B21B2263/20 , B21B2273/14 , B21B2273/16 , B22D11/083
摘要： A method and apparatus for reducing crop losses during slab and ingot rolling concerns the formation of a slab ingot having a specially configured or shaped butt end and optionally a head end as well. A special shape is formed by machining, forging or preferably by casting. The special shape at the butt end is imparted during casting by a specially shaped bottom block or starter block. The special shape of the bottom block is imparted to the cast ingot butt end. The specially shaped butt end of a slab shaped ingot is generally rectangular in shape and has longitudinally outwardly extending, enlarged portions (24), which slope downwardly toward a depressed central valley region (26). The lateral sides of the enlarged end portions and the depressed valley region carry transversely extending, tapered or curved edges. A similar shape may be imparted to the head end of the ingot at the conclusion of a casting run through the use of a specially shaped hot top mold or by way of machining or forging the cast head end. During subsequent hot rolling in a reversing roughing mill, the specially shaped slab ingot minimizes the formation of overlap and tongue so as to improve material recovery by reducing end crop losses and to increase rolling mill efficiency by increasing metal throughput in the mill.
摘要翻译：用于在板坯和锭轧制期间减少作物损失的方法和装置涉及形成具有特殊构造或成形的对接端以及任选的头端的板坯锭。通过加工，锻造或优选通过铸造形成特殊形状。在特殊形状的底部块或启动块铸造期间，在对接端的特殊形状被赋予。将底部块的特殊形状赋予铸锭对接端。板状铸锭的特殊形状的对接端通常为矩形形状，并且具有向下延伸朝向凹陷的中心谷区域（26）的纵向向外延伸的扩大部分（24）。扩大的端部和凹陷的谷区域的横向侧面具有横向延伸的，锥形的或弯曲的边缘。通过使用特殊形状的热顶模具或通过加工或锻造铸造头端部，在铸造过程结束时，可以向锭的头端施加类似的形状。在倒车粗轧机的后续热轧过程中，特殊形状的板坯最小化了重叠和舌头的形成，从而通过减少作物损失来提高材料回收率，并通过提高轧机的金属产量来提高轧机的效率。

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