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312 条记录 (耗时 0.016 秒)

    Process for stretch forming hollow metal bodies
    3.
    发明公开
    Process for stretch forming hollow metal bodies 失效
    用于拉伸形成中空金属体的方法

    公开(公告)号：EP0865841A2

    公开(公告)日：1998-09-23

    申请号：EP98104841.6

    申请日：1998-03-17

    申请人： ALUMINUM COMPANY OF AMERICA

    发明人： Allison, Blair T. ,  van Sumeren, Thomas J. ,  Evert, Robert P. ,  Schultz, John S.

    IPC分类号： B21D11/02 ,  B21D26/02

    CPC分类号： B21D11/02

    摘要： A process for stretch forming hollow metal bodies, such as aluminum alloy extrusions. The extrusions are stretched longitudinally, bent transversely of the pulling direction, and then subjected to pressure from an incompressible fluid in a hollow interior. In a preferred embodiment, the incompressible fluid is water at a pressure sufficient to deform at least part of the extrusion outwardly of its hollow interior. The incompressible fluid reduces dimensional distortions in the shaped product.

    Arc treatment of metal surfaces
    6.
    发明公开
    Arc treatment of metal surfaces 失效
    电弧处理金属表面

    公开(公告)号：EP0761471A2

    公开(公告)日：1997-03-12

    申请号：EP96306098.3

    申请日：1996-08-21

    申请人： ALUMINUM COMPANY OF AMERICA

    发明人： Patrick, Edward P., Alcoa Techn. Ctr. ,  Blakeley, Philip J. ,  Huth, Regis J., Jr., Alcoa Techn. Ctr. ,  Pajerski, Victor A. ,  Seaman, Christopher M., Alcoa Techn. Ctr. ,  Spinella, Donald J., Alcoa Techn. Ctr. ,  Wolf, Charles B.

    IPC分类号： B41N3/03 ,  B23K10/00

    CPC分类号： B41N3/032

    摘要： A method and apparatus for graining a surface having a substantial area traveling at a substantial rate of speed. The method includes directing the surface past an array of electrical arcs traveling about a plurality of loop electrodes arranged to provide overlapping arc loop paths as the surface travels past the array of arc loops. The arc loops are established between the loop electrodes and the traveling surface, and thus contact the surface to grain the same. When each arc is struck between its loop electrodes and traveling surface, it is magnetically impelled about the loop of its electrode by a magnetic field established perpendicular of the direction of arc current flow. An annular sheath of gas is provided on each side of the electrode loop and the arc struck between the electrode loop and the traveling surface.

    摘要翻译： 一种方法和设备，用于对具有以相当大的速度行进的实质区域的表面进行纹理化。 该方法包括将表面引导经过围绕多个回路电极行进的电弧阵列，该电弧阵列布置成当表面行进经过弧形回路阵列时提供重叠的弧形回路路径。 在环形电极和行进表面之间建立弧形环，从而与表面接触表面。 当每个电弧在其环路电极和行进表面之间被击中时，其通过垂直于电弧电流方向建立的磁场被磁性地推动其电极的环路。 在电极回路的每一侧提供环形的气体护套，并在电极回路和行进表面之间产生电弧。

    LEAD-FREE 6XXX ALUMINUM ALLOY
    8.
    发明公开
    LEAD-FREE 6XXX ALUMINUM ALLOY 失效
    无铅6XXX铝合金

    公开(公告)号：EP0733127A1

    公开(公告)日：1996-09-25

    申请号：EP95932521.0

    申请日：1995-09-15

    申请人： ALUMINUM COMPANY OF AMERICA

    发明人： BARTGES, Charles W. ,  KLEMP, Thomas J. ,  SCOTT, Gerald D. ,  ALLYN, Matthew D.

    IPC分类号： C22F1 ,  C22C21

    CPC分类号： C22F1/04 ,  C22C21/003 ,  C22C21/02 ,  C22C21/08 ,  C22C21/12 ,  C22C21/14 ,  C22C21/16

    摘要： An aluminum alloy suitable for machining, said alloy consisting essentially of: about 0.15-1.0 wt.% copper, about 0.4-1.5 wt.% tin, about 0.65-1.35 wt.% magnesium, about 0.4-1.1 wt.% silicon, about 0.002-0.35 wt.% manganese, up to about 0.5 wt.% iron, up to about 0.15 wt.% chromium and up to about 0.15 wt.% titanium, the remainder substantially aluminum. On a preferred basis, this alloy contains about 0.45-0.7 wt.% copper, about 0.9-1.3 wt.% tin, about 0.7-0.9 wt.% magnesium and about 0.45-0.75 wt.% silicon. The alloy is lead-free, bismuth-free, nickel-free, zirconium-free and cadmium-free. There is further disclosed an improved method for making screw machine stock or wire, rod and bar product from this alloy by casting, preheating, extruding, solution heat treating, cold finishing and thermally processing the aforementioned alloy composition.

    摘要翻译： 一种适于加工的铝合金，所述合金基本上由以下组成：约0.15-1.0重量％的铜，约0.4-1.5重量％的锡，约0.65-1.35重量％的镁，约0.4-1.1重量％的硅，约 0.002-0.35重量％的锰，至多约0.5重量％的铁，至多约0.15重量％的铬和至多约0.15重量％的钛，其余基本上为铝。 在优选的基础上，该合金含有约0.45-0.7重量％的铜，约0.9-1.3重量％的锡，约0.7-0.9重量％的镁和约0.45-0.75重量％的硅。 该合金是无铅，无铋，无镍，无锆和无镉。 还公开了一种改进的方法，用于通过铸造，预热，挤出，固溶热处理，冷加工和热加工上述合金组合物来制造螺杆机料或由该合金制成的线材，棒材和棒材产品。

    Method of gas fluxing molten aluminium with impellers located one above the other and mounted on a common shaft
    10.
    发明公开
    Method of gas fluxing molten aluminium with impellers located one above the other and mounted on a common shaft 失效
    与叠加在轴上的叶轮，一种用于熔融铝的气体净化方法

    公开(公告)号：EP0724020A1

    公开(公告)日：1996-07-31

    申请号：EP95114412.0

    申请日：1995-09-13

    申请人： ALUMINUM COMPANY OF AMERICA

    发明人： Yu, Ho, Alcoa Technical Center ,  Scherbak, Michael, Alcoa Technical Center

    IPC分类号： C22B21/06

    CPC分类号： C22B21/064

    摘要： A method of gas fluxing molten aluminum with at least two, relatively small diameter upper and lower rotatable dispersers located in the molten aluminum and mounted on a shaft. Fluxing gas is added to the molten aluminum beneath each of the rotatable dispersers at a substantial rate of gas flow while rotating the dispersers at a substantial rpm in the molten aluminum. The dispersers directly shear gas bubbles that form in the molten aluminum as the fluxing gas is directed into the molten aluminum beneath each of the dispersers. The direct shearing of the gas bubbles maintains a high surface area between the bubbles and molten aluminum to effect efficient removal of impurities in the molten aluminum.

    摘要翻译： 一种用于熔性气体的熔融的Al contg方法。 在相对紧凑的容器（10）的杂质包括：（a）将熔剂气体以在位置熔融的Al（12）（26）直接位于另一个之上的在所述Al worin的一些分散的中的每一个（24）的下方 包括气体反应性或含卤素和/或Ar，N 2或它们的混合物的非反应性气体; 并且在大于0:05 SCFH每铝磅气体的加入; 和（b）旋转所述小直径。 在大幅速率分散从而直接剪切在熔融的Al形成以产生助熔剂气体与熔融铝之间的显界面面积的气体（28）的气泡，并因此除去来自熔融铝中的杂质。