EXTRADOS STRUCTURAL ELEMENT MADE FROM AN ALUMINIUM COPPER LITHIUM ALLOY
    81.
    发明申请
    EXTRADOS STRUCTURAL ELEMENT MADE FROM AN ALUMINIUM COPPER LITHIUM ALLOY 审中-公开
    来自铝合金锂合金的外部结构元件

    公开(公告)号:US20160144946A1

    公开(公告)日:2016-05-26

    申请号:US14899743

    申请日:2014-06-18

    Abstract: The invention relates to an extrados structural element made from an aluminum, copper and lithium alloy and a method for manufacturing same. In the method according to the invention, an alloy with composition (in wt %) 4.2 to 5.2 Cu, 0.9 to 1.2 Li, 0.1 to 0.3 Ag, 0.1 to 0.25 Mg, 0.08 to 0.18 Zr, 0.01 to 0.15 Ti, optionally up to 0.2 Zn, optionally up to 0.6 Mn, an Fe and Si content level less than or equal to 0.1% each, and other element with a content level less than or equal to 0.05% each and 0.15% in total, the aluminum is poured, homogenized, deformed hot and optionally cold, placed in a solution at a temperature of at least 515° C., pulled from 0.5 to 5% and annealed. The combination in particular of the magnesium, copper and manganese content with the temperature in solution can reach a very advantageous elasticity under compression limit. Thus, the products according to the invention having a thickness of at least 12 mm have an elasticity under compression limit in the longitudinal direction of at least 645 MPa and an elongation in the longitudinal direction of at least 7%.

    Abstract translation: 本发明涉及由铝,铜和锂合金制成的外部结构元件及其制造方法。 在根据本发明的方法中,组合物(重量%)为4.2〜5.2的Cu,0.9〜1.2的Li,0.1〜0.3的Ag,0.1〜0.25的Mg,0.08〜0.18的Zr,0.01〜0.15的Ti, 0.2 Zn,任选高达0.6Mn,Fe和Si含量各自小于或等于0.1%,其他元素的含量均小于或等于0.05%,总共为0.15%,将铝倒入, 均质化,变形的热和任选冷的,在至少515℃的温度下放置在溶液中,从0.5至5%拉伸并退火。 特别是镁,铜和锰含量与溶液中的温度的组合在压缩极限下可以达到非常有利的弹性。 因此,根据本发明的具有至少12mm厚度的产品在纵向的压缩极限下具有至少645MPa的弹性,并且在纵向上的伸长率至少为7%。

    Method for the thermomechanical treatment of seamless rings produced on radial-axial ring rolling machines
    88.
    发明授权
    Method for the thermomechanical treatment of seamless rings produced on radial-axial ring rolling machines 有权
    在径向轴向环轧机上生产的无缝环的热机械处理方法

    公开(公告)号:US08377238B2

    公开(公告)日:2013-02-19

    申请号:US12442772

    申请日:2007-08-23

    CPC classification number: B21H1/06 C21D1/02 C21D8/00 C21D9/40

    Abstract: A method and a device are provided for the thermomechanical treatment of seamless steel rings produced on radial-axial ring rolling machines, particularly rings of fine grain steel, heat-treatable steel, case hardened steel, or austenitic steel, preferably of steel tower flanges for wind turbine generators. The ring blank is inserted into the ring rolling machine at a temperature in the range of 900° C. to 1150° C. and is rolled to an outer diameter preferably in the range of 0.2 m to 10 m by a hot forming process. The hot ring (1) is quickly cooled down by a controlled process directly following the rolling, without secondary heating, from a temperature over the conversion temperature in the austenite range to a temperature below 400° C. The device includes a dipping basin filled with cooling liquid (8) or an unfilled cooling container, and a carrier (5) that can be lowered with a hoisting device (4), the rolled ring (1) lying on the carrier. Pressure nozzles (13) are arranged in the dipping basin or the cooling container (2) on one or several ring lines (11), in an equal distribution, for the targeted application of the cooling liquid (8) onto at least one of the ring-shaped surfaces of the ring (1). Measurement of the ring temperature before and/or after the cooldown is carried out, preferably, with a radiation pyrometer.

    Abstract translation: 提供了一种用于对径向轴向环轧机,特别是细晶粒钢,可热处理钢,表面硬化钢或奥氏体钢制成的无缝钢环进行热机械处理的方法和装置,优选钢塔法兰 风力发电机组。 将环坯在900℃〜1150℃的温度范围内插入环轧机中,通过热成型工序轧制至0.2〜10μm的外径。 热循环(1)通过直接在轧制之后的受控过程(不经二次加热)从在奥氏体范围内的转化温度至低于400℃的温度的温度下快速冷却。该装置包括填充有 冷却液体(8)或未填充的冷却容器,以及可以通过提升装置(4)下降的托架(5),滚动环(1)位于托架上。 压力喷嘴(13)以相同的分布布置在浸渍盆或冷却容器(2)中的一个或多个环形管线(11)上,用于将冷却液体(8)有目标地施加到至少一个 环(1)的环形表面。 在冷却之前和/或之后测量环境温度,优选用辐射高温计进行。

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