Aluminum alloy semi-finished product manufacturing process using recycled raw materials
    1.
    发明授权
    Aluminum alloy semi-finished product manufacturing process using recycled raw materials 有权
    铝合金半成品制造工艺采用回收原料

    公开(公告)号:US06293990B1

    公开(公告)日:2001-09-25

    申请号:US09479996

    申请日:2000-01-10

    IPC分类号: C22B2106

    摘要: A manufacturing process for an intermediate product made of a predetermined 7000 series alloy having a target content of at least one first anti-recrystallizing element Z1 selected from the group consisting of Zr and Cr. The product is produced by the steps of: a) supplying machining scrap including at least one second 7000 series alloy having a target content of at least one second anti-recrystallizing element Z2 selected from the group consisting of Zr and Cr, in an amount greater than a maximum accepted content of Z2 in the predetermined alloy; b) conducting at least one refining step of said scrap to reduce the amount of Z2 to a value below the maximum accepted content of Z2 in the predetermined alloy; c) producing a batch of liquid metal having nominal composition, in part or in whole, from the refined scrap; and d) forming the product by casting the liquid metal.

    摘要翻译: 一种由具有选自Zr和Cr组成的组中的至少一种第一抗再结晶元素Z1的目标含量的预定的7000系列合金制成的中间产品的制造方法。 该产品通过以下步骤制造:a)提供包含至少一种具有至少一种选自Zr和Cr的第二抗再结晶元素Z2的目标含量的至少一种第二种7000系列合金的加工废料,其量更大 比预定合金中Z2的最大可接受含量; b)进行所述废料的至少一个精炼步骤以将Z2的量减少到低于预定合金中Z2的最大接受含量的值; c)制备一批 具有标称组成的部分或全部来自精制废料的液态金属; andd)通过铸造液态金属形成产品。

    Aluminium alloy semi-finished product manufacturing process using recycled raw materials
    2.
    发明授权
    Aluminium alloy semi-finished product manufacturing process using recycled raw materials 有权
    铝合金半成品制造工艺采用回收原料

    公开(公告)号:US06454832B1

    公开(公告)日:2002-09-24

    申请号:US09709470

    申请日:2000-11-13

    IPC分类号: C22B2106

    摘要: A manufacturing process for an intermediate product made of a predetermined 7000 series alloy having a target content of at least one first anti-recrystallizing element Z1 selected from the group consisting of Zr and Cr. This process enables effective recycling of scrap, particularly machining scrap made of 7000 series alloys, in the manufacture of intermediated products with high added value. The product is produced by the steps of: a) supplying scrap, which may be machining scrap, including at least one second 7000 series alloy having a target content of at least one second anti-recrystallizing element Z2 selected from the group consisting of Zr and Cr, in an amount greater than a maximum accepted content of Z2 in the predetermined alloy; b) conducting at least one refining step of said scrap to reduce the amount of Z2 to a value below the maximum accepted content of Z2 in the predetermined alloy; c) producing a batch of liquid metal having nominal composition, in part or in whole, from the refined scrap; and d) forming the product by casting the liquid metal.

    摘要翻译: 一种由具有选自Zr和Cr组成的组中的至少一种第一抗再结晶元素Z1的目标含量的预定的7000系列合金制成的中间产品的制造方法。 该工艺可以有效回收废料,特别是在7000系列合金中加工废料,以制造具有高附加值的中间产品。 该产品通过以下步骤制造:a)供应可能是加工废料的废料,其包括至少一种具有至少一种第二抗再结晶元素Z2的目标含量的第二种7000系列合金,其选自Zr和 Cr,其量大于预定合金中Z2的最大可接受含量; b)进行所述废料的至少一个精炼步骤以将Z2的量减少到低于预定合金中Z2的最大可接受含量的值; c)生产一批具有标称组成的部分或全部来自精制废料的液态金属; andd)通过铸造液态金属形成产品。

    Process for recycling aluminum alloy scrap coming from the aeronautical industry
    3.
    发明授权
    Process for recycling aluminum alloy scrap coming from the aeronautical industry 有权
    回收来自航空工业的铝合金废料回收工艺

    公开(公告)号:US08202347B2

    公开(公告)日:2012-06-19

    申请号:US12304548

    申请日:2007-06-18

    IPC分类号: C22B21/06 C22B9/16 C22B7/00

    摘要: A manufacturing process for a remelt block containing aluminum designed for making aluminum alloy for the aircraft industry in which scrap containing mainly aluminum alloys used in the aircraft industry is supplied during a supply stage, the scrap is melted in a smelting furnace in order to obtain an initial molten metal bath during a smelting stage, the initial molten metal bath is subjected to purification by fractional crystallization in order to obtain a solidified mass and a bath of residual liquid during a segregation stage, and the solidified mass is recovered in order to obtain a remelt block during a recovery stage. The invention is particularly useful for the recycling of aluminum alloys used in the aircraft industry as it makes it possible to purify scrap of series 2XXX or series 7XXX alloys for iron and silicon, without eliminating additive elements such as zinc, copper and magnesium.

    摘要翻译: 用于制造用于飞机工业的铝合金的重熔熔块的制造方法,其中主要在飞机工业中使用的铝合金的废料在供应阶段被供应,废料在冶炼炉中熔化以获得 在冶炼阶段初始熔融金属浴,通过分级结晶对初始熔融金属浴进行纯化,以便在分离阶段期间获得固化物质和残留液体浴,并且回收固化物以获得 在恢复阶段重熔块。 本发明对于飞机工业中使用的铝合金的回收特别有用,因为它可以净化铁和硅的系列2XXX或系列7XXX合金的废料,而不消除添加元素如锌,铜和镁。

    PROCESS FOR RECYCLING ALUMINIUM ALLOY SCRAP COMING FROM THE AERONAUTICAL INDUSTRY
    4.
    发明申请
    PROCESS FOR RECYCLING ALUMINIUM ALLOY SCRAP COMING FROM THE AERONAUTICAL INDUSTRY 有权
    从气象行业回收铝合金切屑的工艺

    公开(公告)号:US20090285716A1

    公开(公告)日:2009-11-19

    申请号:US12304548

    申请日:2007-06-18

    摘要: A manufacturing process for a remelt block containing aluminum designed for making aluminum alloy for the aircraft industry in which scrap containing mainly aluminum alloys used in the aircraft industry is supplied during a supply stage, the scrap is melted in a smelting furnace in order to obtain an initial molten metal bath during a smelting stage, the initial molten metal bath is subjected to purification by fractional crystallization in order to obtain a solidified mass and a bath of residual liquid during a segregation stage, and the solidified mass is recovered in order to obtain a remelt block during a recovery stage. The invention is particularly useful for the recycling of aluminum alloys used in the aircraft industry as it makes it possible to purify scrap of series 2XXX or series 7XXX alloys for iron and silicon, without eliminating additive elements such as zinc, copper and magnesium.

    摘要翻译: 用于制造用于飞机工业的铝合金的重熔熔块的制造方法,其中主要在飞机工业中使用的铝合金的废料在供应阶段被供应,废料在冶炼炉中熔化以获得 在冶炼阶段初始熔融金属浴,通过分级结晶对初始熔融金属浴进行纯化,以便在分离阶段期间获得固化物质和残留液体浴,并且回收固化物以获得 在恢复阶段重熔块。 本发明对于飞机工业中使用的铝合金的回收特别有用,因为它可以净化铁和硅的系列2XXX或系列7XXX合金的废料,而不消除添加元素如锌,铜和镁。

    Thick alZnMgCu alloy products with improved properties
    5.
    发明授权
    Thick alZnMgCu alloy products with improved properties 失效
    厚AlZnMgCu合金产品具有改进的性能

    公开(公告)号:US6027582A

    公开(公告)日:2000-02-22

    申请号:US897832

    申请日:1997-07-21

    IPC分类号: C22C21/10 C22F1/053

    CPC分类号: C22C21/10 C22F1/053

    摘要: A rolled, forged or extruded AlZnMgCu alloy product, used to manufacture structural elements for aircraft, particularly wing spars. The product is greater than 60 mm thick, and has a composition (% by weight):5.7 Cu,other elements 400 MPa in the L and TL directions,b) toughness under plane strain in the S-L direction>26 MPa.sqroot.m and in the L-T direction >74-0.08e-0.07R.sub.0.2L MPa.sqroot.m (e=thickness in mm), andc) a stress corrosion threshold>240 MPa.

    摘要翻译: 用于制造飞机,特别是翼梁的结构元件的轧制,锻造或挤压AlZnMgCu合金产品。 产品大于60mm厚,组成(重量%):5.7 Cu,其他元素各<0.05,总共<0.10。 该产品通过固溶热处理,淬火和可能老化处理,并且在经处理的T7451或T7452中具有以下性能:a)在L和TL方向上的四分之一厚度> 400MPa下测量的屈服强度,b)韧性 在SL方向下的平面应变> 26MPa 2ROOT + E,rad m + EE,在LT方向> 74-0.08e-0.07R0.2L MPa 2ROOT + E,rad m + EE(e =厚度,mm) 和c)应力腐蚀阈值> 240MPa。

    METHOD FOR RECYCLING ALUMINUM-LITHIUM-TYPE ALLOY SCRAP
    6.
    发明申请
    METHOD FOR RECYCLING ALUMINUM-LITHIUM-TYPE ALLOY SCRAP 有权
    回收铝 - 锂合金切屑的方法

    公开(公告)号:US20070062336A1

    公开(公告)日:2007-03-22

    申请号:US11462624

    申请日:2006-08-04

    IPC分类号: C22B21/00

    摘要: The present invention is directed to a method for melting scrap of an aluminum alloy containing lithium. The steps include providing scrap containing aluminum-lithium-type alloys, preparing an initial liquid metal bed of a first composition in a smelting oven, loading the scrap onto the initial liquid metal bed so as to create a floating layer of the scrap with a controlled thickness at the surface of the liquid metal bed, partially melting the floating layer via contact with the metal bed so as to obtain a liquid metal bath having a second composition, and removing the liquid metal from the second composition of the liquid metal bath. The method has technical and economic advantages. It does not require investment in a particular installation and it requires minimal use of expensive expendable materials such as inert gas, because the formation of a floating layer having a controlled thickness makes it possible to effectively protect the surface of the liquid metal from oxidation.

    摘要翻译: 本发明涉及一种用于熔化含锂的铝合金的废料的方法。 所述步骤包括提供含有铝 - 锂型合金的废料,在冶炼炉中制备第一组合物的初始液态金属床,将废料装载到初始液态金属床上,以便产生具有受控制的废料的浮动层 在液态金属床的表面上的厚度,通过与金属床接触而部分地熔化浮动层,以获得具有第二组成的液态金属浴,并从液态金属浴的第二组合物中除去液态金属。 该方法具有技术经济优势。 由于形成具有受控厚度的浮动层,因此可以有效地保护液态金属的表面免于氧化,因此不需要对特定装置进行投资,并且需要使用昂贵的消耗材料如惰性气体。