公开(公告)号：WO1996006225A1

公开(公告)日：1996-02-29

申请号：PCT/US1994009142

申请日：1994-08-23

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  ARMBRUST, Bernard, P., Jr.

IPC: D21H17/67

CPC classification number: D21H17/675 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/63 ,  C01P2006/64 ,  C09C1/407 ,  D21H17/67

Abstract: A process for preparing an ultra-white alumina trihydrate having a G.E. brightness of at least about 98 %. The product is alumina trihydrate that has been rehydrated with coprecipitation, and the crystal phase of the product is primarily gibbsite in thin platelet form having a ratio of thickness to diameter of about 0.2 to about 0.3. The product is prepared by flash activation of a white initial alumina trihydrate, addition of the activated material to a purified sodium aluminate liquor having an alumina to caustic ratio of about 0.5, and rehydrating and precipitating the alumina at ambient temperature under agitation for about 48 hours, followed by washing and drying of the resulting precipitate. The material is especially useful as a filler or coating in papermaking, and it can be substituted for a portion of titanium dioxide pigment in the ratio of 1:1, and can be combined with titanium dioxide as a pigment mixture, either in slurry form or in dry form. The pigment mixture is added to the papermill machine chest to enhance optical properties beyond those achieved by either pigment alone.

Abstract translation: 一种制备具有G.E.的超白三氧化三铝的方法。 亮度至少约98％。 该产品是已经被共沉淀再水化的三水合氧化铝，并且产物的结晶相主要是薄片形式的三水铝矿，其厚度与直径之比约为0.2至约0.3。 产物通过白色初始氧化铝三水合物的快速活化制备，将活化的材料加入到具有约0.5的氧化铝至苛性碱的纯化铝酸钠溶液中，并在环境温度下再搅拌并沉淀氧化铝约48小时 ，然后洗涤并干燥所得沉淀。 该材料作为造纸中的填料或涂料是特别有用的，它可以以1:1的比例代替二氧化钛颜料的一部分，并且可以与二氧化钛作为颜料混合物以浆料形式或 干燥形式。 将颜料混合物加入到造纸机床中以增强光学性能，而不仅仅是由任一颜料实现的。

公开(公告)号：WO1995027578A1

公开(公告)日：1995-10-19

申请号：PCT/US1995004520

申请日：1995-04-12

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  PARKER, Gary, B.

IPC: B22D11/00

CPC classification number: B22D11/11 ,  B22D11/015 ,  C22C21/06 ,  C22C21/08

Abstract: A method for improving the surface quality of electromagnetically cast aluminum alloy ingot (15) includes the addition of an effective amount of calcium prior to the ingot head (19) of an ingot mold (30) of an electromagnetic casting station (7). The addition of calcium is regulated such that the aluminum alloy cast ingot (15) contains a maximum of 0.05 weight percent calcium. Addition of the calcium prior to the ingot head (19) produces a cast ingot (15) which is generally free of surface imperfections (21) on side surfaces thereof so that the cast ingot (15) can be directly worked or rolled to a desired gauge without a scalping (29) or other surface conditioning treatment. The calcium can be added during melting, alloying, filtering, degassing or transferring of the molten aluminum prior to casting. An electromagnetically cast aluminum alloy ingot (15) is produced, preferably an AA 5182 can end stock alloy, which is essentially free of surface imperfections (21) to permit direct rolling or other working of the cast ingot without a surface conditioning treatment.

Abstract translation: 一种改善电铸铝合金锭（15）的表面质量的方法包括在电铸铸锭（7）的铸模（30）的锭头（19）之前加入有效量的钙。 调节钙的添加使得铝合金铸锭（15）含有最多0.05重量％的钙。 在铸锭头（19）之前添加钙产生在其侧表面上通常没有表面缺陷（21）的铸锭（15），使得铸锭（15）可以直接加工或轧制成所需的 没有烫伤（29）或其他表面调理处理。 可以在熔融，合金化，过滤，脱气或熔融铝转移之前加入钙。 制造电磁铸造铝合金锭（15），优选为AA 5182罐端材料合金，其基本上没有表面缺陷（21），以允许铸造锭的直接轧制或其它加工而不进行表面调节处理。

公开(公告)号：WO1994021405A1

公开(公告)日：1994-09-29

申请号：PCT/US1994003041

申请日：1994-03-22

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  EDWARDS, H., Marvin

IPC: B22D11/04

CPC classification number: B22D11/111

Abstract: Casting aluminum-lithium based alloys under a salt cover (25) involves forming a molten aluminum-lithium alloy, transferring the molten aluminum-lithium alloy to a casting station (3), and direct chill casting the aluminum-lithium alloy, wherein a protective molten salt cover (25) comprising a mixture of lithium chloride and potassium chloride is maintained over the aluminum-lithium alloy (23) during the casting process. Formation of the molten aluminum-lithium alloy includes alloying of lithium with aluminum by adding lithium to the salt-covered molten aluminum in a melting vessel (1). The molten salt may be added to the ingot head during casting. A preferred salt mixture includes 35 to 90 mole % LiCl and 10 to 65 mole % KCl.

Abstract translation: 在盐盖（25）下铸造铝 - 锂基合金包括形成熔融的铝 - 锂合金，将熔融的铝 - 锂合金转移到铸造工位（3），并直接冷铸铝 - 锂合金，其中保护 在铸造过程中，在铝 - 锂合金（23）上保持包括氯化锂和氯化钾的混合物的熔融盐覆盖物（25）。 熔融铝锂合金的形成包括通过在熔化容器（1）中向覆盖盐的熔融铝中加入锂而使锂与铝合金化。 熔融盐可以在铸造过程中加入铸锭头。 优选的盐混合物包括35至90摩尔％的LiCl和10至65摩尔％的KCl。

公开(公告)号：WO1994005820A1

公开(公告)日：1994-03-17

申请号：PCT/US1993008069

申请日：1993-08-27

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  CASSADA, William, A., III

IPC: C22C21/00

CPC classification number: C22C21/16

Abstract: An aluminum-based alloy composition having improved combinations of strength and fracture toughness consists essentially of 2.5-5.5 percent copper, 0.10-2.30 percent magnesium, with minor amounts of grain refining elements, dispersoid additions and impurities and the balance aluminum. The amounts of copper and magnesium are controlled such that the solid solubility limit for these elements in aluminum is not exceeded. The figure illustrates the broad composition ranges for (A, B, and C) including specific alloy samples 2 through 5 as exemplary inventive alloy. The dotted line shows the preferred alloy composition. The inventive alloy composition may also include 0.10-1.00 percent silver for improved mechanical properties. The alloys are useful as for aircraft and aerospace structure parts.

Abstract translation: 具有改进的强度和断裂韧性组合的铝基合金组合物基本上由2.5-5.5％的铜，0.10-2.30％的镁，少量的晶粒细化元素，分散质添加剂和杂质以及余量的铝组成。 控制铜和镁的量使得不超过这些元素在铝中的固溶度极限。 该图示出了包括特定合金样品2至5作为示例性本发明合金的（A，B和C）的宽的组成范围。 虚线表示优选的合金组成。 本发明的合金组合物还可以包括0.10-1.00％的银以改善机械性能。 该合金对于飞机和航空航天结构部件是有用的。

公开(公告)号：WO1993020253A1

公开(公告)日：1993-10-14

申请号：PCT/US1993002994

申请日：1993-03-30

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  WADE, Kenneth, D.

IPC: C22F01/04

CPC classification number: C22F1/04 ,  C22C21/00

Abstract: An aluminum-based alloy composition having improved corrosion resistance and high extrudability consists essentially of about 0.1-0.5 % by weight of manganese, about 0.05-0.12 % by weight of silicon, about 0.01-0.20 % by weight of titanium, about 0.15-0.25 % by weight of iron and the balance aluminum, wherein the aluminum alloy is essentially copper free. The inventive alloy is useful in automotive applications, in particular, heat exchanger tubing and finstock, and foil packaging. The process provided by the invention uses a high extrusion ratio and produces a product having high corrosion resistance.

公开(公告)号：WO1997022724A1

公开(公告)日：1997-06-26

申请号：PCT/US1996019878

申请日：1996-12-17

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  BRYANT, J., Daniel ,  YOSHIDA, Hideo ,  UCHIDA, Hidetoshi

IPC: C21D09/46

CPC classification number: C21D9/56 ,  C21D9/60 ,  C22F1/04 ,  C22F1/05 ,  Y02P10/253

Abstract: A method and apparatus for making aluminum alloy sheet product with improved paintbake response during automotive paintbake cycles, resistance to natural aging and better formability includes rapidly heating the aluminum alloy sheet product between a solution heat treating (5)/quenching operation (1) and a sheet coiling operation (13). Performing the rapid heating at this stage in the sheet manufacture minimizes the adverse effect of early natural aging (dwell time) on the paintbake response of these types of aluminum sheet alloy products. According to the invention, this dwell time is minimized by the application of a rapid heating step (7) immediately following quenching from the solution heat treatment. After the aluminum sheet product has been rapidly heated, it is immediately coiled and cools under ambient conditions in coil form (13), this ambient cooling providing a pre-aging treatment which contributes to the improved performance of the sheet product in paintbake response, improved formability and natural aging resistance.

Abstract translation: 一种用于制造在汽车漆烘烤循环期间具有改善的油漆烘烤响应的铝合金板产品的方法和装置，耐自然老化和更好的成型性包括在固溶热处理（5）/淬火操作（1）和 片卷绕操作（13）。 在片材制造的这个阶段进行快速加热使得早期自然老化（停留时间）对这些类型的铝板合金产品的油漆响应的不利影响最小化。 根据本发明，通过在从固溶热处理淬火之后立即施加快速加热步骤（7）来使该停留时间最小化。 在铝板产品被快速加热之后，它立即卷绕并在环境条件下以线圈形式（13）冷却，这种环境冷却提供了一种预处理处理，其有助于提高涂料反应中片材产品的性能，改进 成型性和抗老化性。

公开(公告)号：WO1995031666A1

公开(公告)日：1995-11-23

申请号：PCT/US1995006278

申请日：1995-05-17

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  RUGGLES, Peter, C. ,  SNODGRASS, Jack, S.

IPC: F16L13/10

CPC classification number: F16L41/082 ,  F16L13/147 ,  F28F1/06 ,  F28F9/162 ,  Y10T29/49375 ,  Y10T29/49906 ,  Y10T29/4994 ,  Y10T156/1002 ,  Y10T403/4924 ,  Y10T403/4966

Abstract: A method of forming a tube joint which can be used in a desalination plant includes providing a fluted tube (1), applying a sealant (51) to the tube end (19) and inserting the tube end (19) into a tube sheet or plate (3) to form a joint therebetween. After insertion, the inner surface of the fluted tube (1) is worked to deform external ridges of the fluted tube (1) and uniformly distribute the sealant (51) throughout the joint area. The fluted tube (1) is deformed using a roll expanding method. The fluted design of the tube (1) retains sealant (51) in the joint area during tube (1) insertion and expansion and takes advantage of the heat transfer characteristic of the flutes (9) to provide an improved joint construction especially adapted for heat exchange use.

Abstract translation: 形成可用于脱盐设备的管接头的方法包括提供槽纹管（1），向管端（19）施加密封剂（51）并将管端（19）插入管板或 板（3）以在其间形成接头。 插入后，加工槽形管（1）的内表面以使槽纹管（1）的外脊变形，并将密封剂（51）均匀分布在整个接合区域。 凹槽管（1）使用卷筒扩张方法变形。 管（1）的凹槽设计在管（1）插入和膨胀期间在接合区域中保持密封剂（51），并利用凹槽（9）的传热特性来提供改进的接头结构，特别适用于热 交换使用。

公开(公告)号：WO1993011896A1

公开(公告)日：1993-06-24

申请号：PCT/US1992009277

申请日：1992-11-04

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  JORSTAD, John, L. ,  MORLEY, Richard, A. ,  OVERBAGH, William, H. ,  STEELE, George, W.

IPC: B22D19/08

CPC classification number: F02F1/24 ,  B22D19/0009 ,  B22D19/08 ,  F02F2007/009 ,  F05C2201/021

Abstract: Processes for coating a ferrous or aluminum article, such as an engine cylinder liner insert (20), to provide a metallurgical bond with aluminum alloy material cast around the article. The article surface (26) to be bonded is treated to remove impurities, oxides, and foreign materials, and the article is preheated. A molten metallic bonding material, such as zinc or a zinc alloy, is provided and the treated and preheated article is immersed in the bonding material to provide a metallurgically bonded coating on the surface of the article being treated. The coated article, either shortly after coating or, alternatively, after having been cooled to ambient temperature and stored, can then be placed in a mold and molten aluminum alloy poured around it to metallurgically bond the aluminum to the coating on the article. The resulting structure provides a metallurgical bond that has improved heat transfer characteristics and improved structural integrity.

Abstract translation: 用于涂覆黑色金属或铝制品的工艺，例如发动机气缸衬套（20），以提供围绕物品铸造的铝合金材料的冶金结合。 处理待接合的物品表面（26）以除去杂质，氧化物和异物，并将物品预热。 提供熔融金属接合材料，例如锌或锌合金，并将处理和预热的制品浸入接合材料中，以在被处理物品的表面上提供冶金结合的涂层。 涂覆后不久，或者冷却至环境温度并储存后的涂层制品然后可以放置在模具中，并将熔融的铝合金倒在其周围，以将铝与制品上的涂层冶金结合。 所得到的结构提供了具有改善的传热特性和改进的结构完整性的冶金结合。

公开(公告)号：WO1992020477A1

公开(公告)日：1992-11-26

申请号：PCT/US1992003961

申请日：1992-05-13

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  HANNEMAN, Rodney, E.

IPC: B22D11/06

CPC classification number: B32B15/08 ,  B32B1/02 ,  B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  B32B27/36 ,  B32B38/0036 ,  B32B2038/0092 ,  B32B2310/021 ,  B32B2311/24 ,  B32B2439/00 ,  B32B2439/02 ,  B32B2439/66

Abstract: A method for making a polymer laminated drag cast aluminum alloy container stock material includes, in a preferred embodiment, drag casting an aluminum alloy (21) suitable for forming into beverage containers into a sheet (21). The sheet (21) is then cold rolled, at least one of the sheet's surfaces is cleaned and pretreated and a polymer material (23) is laminated thereto. The polymer laminate (23) on the drag cast aluminum alloy surface permits the use of drag cast aluminum alloy sheet (21) material to be utilized, for example, as aluminum beverage container stock material.

公开(公告)号：WO1992014855A1

公开(公告)日：1992-09-03

申请号：PCT/US1992001135

申请日：1992-02-18

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  BALMUTH, Edward, S. ,  CHELLMAN, David, J. ,  GAYLE, Frank, W. ,  RAINEN, Richard, A. ,  SKILLINGBERG, Michael, H.

IPC: C22F01/04

CPC classification number: C22F1/057 ,  C22C21/12 ,  C22C21/16

Abstract: Aluminum based alloy primarily for use in aircraft and aerospace components consists essentially of the composition: 2.60 to 3.30 weight percent copper, 0.0 to 0.50 weight percent manganese, 1.30 to 1.65 weight percent lithium, 0.0 to 1.5 percent magnesium, and from 0.0 to 1.5 weight percent of grain refinement elements selected from the group consisting of zirconium, and chromium. Up to about 0.25 wt.% zinc and up to about 0.15 wt.% titanium may also be present. These alloys exhibit an improved combination of characteristics including low density, high strength, high corrosion resistance and good fracture toughness.