公开(公告)号：EP0981653A1

公开(公告)日：2000-03-01

申请号：EP98903777.5

申请日：1998-01-30

Applicant: REYNOLDS METALS COMPANY

Inventor： CHO, Alex ,  SKILLINGBERG, Michael, H. ,  GREENE, Richard, E. ,  NIEDZINSKI, Michael, M.

IPC: C22C21/00

CPC classification number: C22C21/12 ,  C22F1/057

Abstract: An aluminum-lithium alloy is processed with controlled amounts of copper, lithium, manganese and zirconium to produce a product having improved fracture toughness in the short longitudinal (S-L) direction and acceptable strength in the short transverse (ST) direction.

Abstract translation: 用控制量的铜，锂，锰和锆处理铝锂合金以生产在短纵向（S-L）方向上具有改善的断裂韧性并且在短横向（ST）方向上具有可接受的强度的产品。

公开(公告)号：EP0726114A3

公开(公告)日：1997-09-10

申请号：EP96101738.1

申请日：1996-02-07

Applicant: REYNOLDS METALS COMPANY

Inventor： Kirby J., Leslie ,  Kendrick, Richard O. ,  Kroml, Steven M. ,  Steele, George W.

IPC: B22D11/10 ,  C22B21/06

CPC classification number: B22D11/11

Abstract: A method and an apparatus for melting and casting aluminum-lithium alloy ingots enhance ingot quality by supplying an inert gas such as argon to ambient atmospheric air (31, 35) during melting and casting. Argon is supplied to one or more covers (3, 11, 17) of the furnace (1), pour trough (9) and casting station (30) to reduce moisture pick up by hygroscopic molten salt baths (25, 27) used during the melting and casting steps.

公开(公告)号：EP0786295A1

公开(公告)日：1997-07-30

申请号：EP97850007.2

申请日：1997-01-20

Applicant: REYNOLDS METALS COMPANY

Inventor： Sainz, Sergio R. ,  Haulsee, Donald R. ,  Donaldson, Roger H.

IPC: B21D51/26

CPC classification number: B21D51/2638 ,  B21D51/2615

Abstract: A method of die-necking the open end (23) of a can body to form a reduced diameter neck (22) having a smooth profile comprising forming a reduced neck at the open end of the cylindrical sidewall (21) of the can body by engaging the open end of the sidewall with a die having a multi-radius (R1,R2) forming profile, with each successive radius from the entrance to the exit of the die being smaller than the previous radius and with the angle (B,C) through which each successive radius extend being equal to or smaller than the angle of the previous radius. Then a subsequent die-forming stations, forming progressively smaller reduced diameter necks (40,60,84,86,88,25) by a series of dies, all of which preferably have the same multi-radiused forming surface profile which virtually eliminates the undesirable formation of pleats in the final neck configuration.

Abstract translation: 一种使罐体的开口端（23）颈缩的方法，以形成具有平滑轮廓的直径缩小的颈部（22），包括在罐体的圆柱形侧壁（21）的开口端处形成减小的颈部，颈部缩小 将侧壁的开口端与具有多半径（R1，R2）形成轮廓的模具接合，其中从模具的入口到出口的每个连续半径小于先前的半径，并且具有角度（B，C ），每个连续的半径延伸通过其等于或小于先前半径的角度。 然后，随后的模具形成站通过一系列模具形成逐渐变小的缩小直径的颈部（40,60,84,86,88,25），所有这些模具优选地具有相同的多圆弧形成表面轮廓，其实际上消除了 在最终颈部构型中不希望形成褶皱。

公开(公告)号：EP0755311A1

公开(公告)日：1997-01-29

申请号：EP95915656.0

申请日：1995-04-12

Applicant: REYNOLDS METALS COMPANY

Inventor： PARKER, Gary B.

IPC: B22D11 ,  C22C1 ,  C22C21

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.

公开(公告)号：EP0752919A1

公开(公告)日：1997-01-15

申请号：EP95914754.0

申请日：1995-03-29

Applicant: Reynolds Metals Company

Inventor： WARD, Bennie R.

IPC: B22D11 ,  B32B15

CPC classification number: B32B15/016 ,  B22D11/008 ,  B22D11/0622 ,  Y10T428/12493 ,  Y10T428/12639 ,  Y10T428/12736 ,  Y10T428/12764 ,  Y10T428/12986

Abstract: A method of making twin roll cast clad material (17) includes producing a composite material using a liner stock produced by drag casting techniques. The drag cast liner stock (7) can be directly used in a twin roll continuous casting process (5) without additional process steps such as heat treatment, surface cleaning and/or rolling. The drag cast liner stock (7) can be applied to one or both of the surfaces of the twin roll cast material (5) to produce a composite material (17) that is useful in a cast form or can be adapted for reduction by rolling processes or the like. The twin roll cast cladding process can utilize aluminum alloy core and cladding materials to form a brazing sheet from the as-cast composite material. The figure shows the production of twin roll cast clad material (17).

Abstract translation: 制造双辊铸造包层材料（17）的方法包括使用通过拖曳流延技术生产的衬里料生产复合材料。 可以直接在双辊连续铸造工艺（5）中使用阻力铸造衬里原料（7），而无需附加工艺步骤，例如热处理，表面清洁和/或轧制。 可以将该低温铸造衬里原料（7）施加到双辊铸造材料（5）的一个或两个表面上以制造复合材料（17），该复合材料（17）可用于铸造形式或可适于通过轧制 过程等。 双辊铸造熔覆工艺可以利用铝合金芯和包层材料由铸态复合材料形成钎焊板。 该图显示了双辊铸造复合材料（17）的生产。

公开(公告)号：EP0584271B1

公开(公告)日：1996-07-31

申请号：EP92913414.6

申请日：1992-05-14

Applicant: REYNOLDS METALS COMPANY ,  Martin Marietta Corporation

Inventor： PICKENS, Joseph Robert ,  CHO, Alex

IPC: C22F1/04 ,  C22C21/16 ,  C22F1/057

CPC classification number: C22F1/057 ,  C22C21/12 ,  C22C21/16 ,  C22F1/04

Abstract: An aluminum based alloy useful in aircraft and aerospace structures which has low density, high strength and high fracture toughness consists essentially of the following formula: CuaLibMgcAgdZreAlba1, wherein a, b, c, d, e and ba1 indicate the amount in wt. % of alloying components, and wherein 2.4

公开(公告)号：EP0694085A1

公开(公告)日：1996-01-31

申请号：EP94911513.0

申请日：1994-03-09

Applicant: REYNOLDS METALS COMPANY

Inventor： CHO, Alex

IPC: C22C21 ,  C22F1

CPC classification number: C22F1/04

Abstract: Strength and ductility for aluminum-lithium alloy wrought product in the transverse direction is improved by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching is subjected to a multiple step stretching sequence prior to aging, the total percent reduction for the multiple step stretching sequence ranging between 1 and 20 percent reduction. In the multiple step stretching sequence, each of the stretching steps may have the same or different amounts of percent reduction to achieve the desired total percent reduction. An aluminum-lithium alloy wrought product subjected to the improved T8 temper practice has increased tensile yield stress and percent elongation in its transverse direction to facilitate commercial application of the product in high strength applications.

Abstract translation: 通过对这些类型的合金进行改进的T8回火实践来改善铝 - 锂合金锻造产品的横向强度和延展性。 锻造产品在固溶热处理和淬火之后在老化之前经受多步骤拉伸序列，多步骤拉伸序列的总减少百分比范围在减少1％和20％之间。 在多步骤拉伸序列中，每个拉伸步骤可以具有相同或不同的减少百分比量以实现期望的总减少百分比。 经过改进的T8回火实践的铝锂合金锻造产品在其横向方向上具有增加的拉伸屈服应力和百分伸长率，以促进产品在高强度应用中的商业应用。

公开(公告)号：EP0690756A1

公开(公告)日：1996-01-10

申请号：EP94912279.0

申请日：1994-03-22

Applicant: REYNOLDS METALS COMPANY

Inventor： EDWARDS, H. Marvin

IPC: B22D11 ,  B22D27 ,  C22C1 ,  C22C21

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.

公开(公告)号：EP0679701A1

公开(公告)日：1995-11-02

申请号：EP94307189.4

申请日：1994-09-30

Applicant: REYNOLDS METALS COMPANY

Inventor： Kirk, Thomas E.

IPC: C09D9/00

CPC classification number: B08B9/20 ,  C22B21/0007 ,  Y02P10/234

Abstract: Aluminum can stock is delacquered by treatment with a composition comprising a mixture of a polyalkylene glycol polymer and an aqueous solution of a dicarboxylic acid such as oxalic acid. The cans are cleaned sufficiently for recycling and the solution can be reused to delacquer additional aluminum can stock.

公开(公告)号：EP0570005A3

公开(公告)日：1994-07-13

申请号：EP93107888.5

申请日：1993-05-14

Applicant: REYNOLDS METALS COMPANY

Inventor： Lee, Harry W., Jr. ,  Payne, Charles T., Jr. ,  Robertson, Field I. ,  Thai, Robert K.

IPC: B21D51/26

CPC classification number: B21D51/2638 ,  B21D51/2615

Abstract: A multi-station machine (10) for necking-in the open end of a metal container body (C) includes a plurality of necking spindle assemblies (18) mounted at circumferentially spaced locations on a tooling disc turret (12) in coaxial alignment with corresponding base pad spindle assemblies (20) mounted to a base pad turret (14). The turrets are co-rotatable with a main turret shaft (16). Cam controlled tooling activating assemblies (200) are mounted on the tooling disc turret (12) to control the necking-in movement of an eccentric roll (88) and an external forming roll (40) in each necking spindles in synchronism with delivery of vacuum suction through the base pad spindles which clamps the container bottom walls to the respective base pads. A sequential latching arrangement associate with the tooling activating assemblies prevents tool-to-tool contact between the outer forming rolls with the eccentric rolls in the absence of container bodies on station. The vacuum manifold arrangement feature the supply of high volume, low suction vacuum to a small number of stations in the vicinity of the infeed location to rapidly locate the container bodies on the base pads. A low volume, high suction vacuum supply to the downstream spindles ensures proper clamping suction to properly maintain the containers on the base pads during necking. In the absence of containers at various stations, the high volume, low suction vacuum is subject to leakage only at a small number of stations at the infeed while vacuum leakage in the remainder of the stations is insufficient to lower clamping pressure to unacceptable levels.