STRENGTH ANISOTROPY REDUCTION IN ALUMINUM-LITHIUM ALLOYS BY COLD WORKING AND AGING
    151.
    发明公开
    STRENGTH ANISOTROPY REDUCTION IN ALUMINUM-LITHIUM ALLOYS BY COLD WORKING AND AGING 失效
    FESTIGKEITSANISOTROPIEVERMINDERUNG铝锂合金BY冷处理和时效。

    公开(公告)号:EP0665901A1

    公开(公告)日:1995-08-09

    申请号:EP93923256.0

    申请日:1993-10-05

    Inventor: CHO, Alex

    IPC: C22F1

    CPC classification number: C22F1/04

    Abstract: Strength anisotropy of aluminum-lithium alloy wrought products is reduced by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching, is subjected to a combination of cold rolling and stretching steps prior to aging. The cold rolling can range between 1 and 20 % reduction with the stretching step ranging between 0.5-10 %. The cold rolling step may be performed in one or a multiple of passes. When multiple passes are used, the cold rolling may be done in different directions to further enhance reductions in strength anisotropy for these types of alloys. Table X and Figure 8 summarize the results of inventive practive (D), (E) or (F) on the highest and the lowest (TYS) value and compares it with the conventional practice. The relative closeness of (TYS) by inventive practice suggests commercial exploitation of the wrought Al-Li alloys in high strength applications.

    METHOD AND APPARATUS FOR FORMING CAN ENDS
    152.
    发明公开
    METHOD AND APPARATUS FOR FORMING CAN ENDS 失效
    方法和制造装置的容器封闭。

    公开(公告)号:EP0592498A1

    公开(公告)日:1994-04-20

    申请号:EP92913483.0

    申请日:1992-06-11

    CPC classification number: B21D51/38

    Abstract: Procédé et appareil de formage d'extrémités de boîtes métalliques dans lesquels des extrémités sont découpées à partir d'une tôle puis formées dans une matrice dans laquelle l'extrémité découpée est formée, et retirée de ladite matrice au niveau d'une position verticale située au-dessous de la position de découpage (226). Le formage et le retrait de l'extrémité au-dessous de la ligne de découpage permettent une meilleure gestion des extrémités après formage. On applique (156) du vide au côté inférieur de l'extrémité (60) afin d'asseoir directement l'extrémité contre des éléments (72, 58) de formage inférieurs de la matrice à mesure que les éléments inférieurs font monter l'extrémité jusqu'au niveau d'une fente d'éjection où de l'air sous-pression (226) expulse l'air se trouvant entre les matrices (54, 56). L'invention concerne également un circuit de lubrification automatique utilisé pour lubrifier correctement des éléments d'étanchéité formant des coussins pneumatiques utilisés pour solliciter de manière souple les divers éléments matriciels.

    LOW DENSITY HIGH STRENGTH Al-Li ALLOY
    153.
    发明公开
    LOW DENSITY HIGH STRENGTH Al-Li ALLOY 失效
    低密度高强度铝锂合金

    公开(公告)号:EP0584271A1

    公开(公告)日:1994-03-02

    申请号:EP92913414.0

    申请日:1992-05-14

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

    Abstract: Alliage à base d'aluminium utile dans des structures aéronautiques et aérospatiales, possédant une faible densité, une résistance élevée et une forte ténacité à la rupture, correspondant essentiellement à la formule CuaLibMgcAgdZreAlba1 dans laquelle a, b, c, d, e et ba1 indiquent le pourcentage en poids des composants d'alliage, lesdits pourcentages étant 2,4

    Abstract translation: 在航空和航天结构有用铝基合金具有低的密度,高强度和高断裂韧性,基本上对应于CuaLibMgcAgdZreAlba1式其中A,B,C,d,e和指示BA1 所述百分比为2.4

    Improvements to apparatus for flanging containers
    154.
    发明公开
    Improvements to apparatus for flanging containers 失效
    Verbesserungen一个Vorrichtungen zum Formen von Flanschen一个Dosen。

    公开(公告)号:EP0581650A1

    公开(公告)日:1994-02-02

    申请号:EP93401897.9

    申请日:1993-07-22

    CPC classification number: B21D51/2615 B21D19/046 B21D51/263

    Abstract: A flanging head (10) assembly having a cluster of freely rotatable spin flanging rollers (12) includes a stop ring (26) against which the flange (68) hits during the final flange forming stages to limit the flange to a specific diameter. To prevent the flange from entering the crack (72) formed between the rotating roller and the stationary stop ring, there is provided a step (80) spacing the stop ring surface (70) from the roller forming surface (66). In this manner, as the terminal edge of the flange (68) slides around the flanging roller during final forming, it will pass over the crack (72) and across the step (80) to lodge in a corner (85) formed between the step and stop ring surface. In a preferred embodiment, the step is a conical surface extending from the stop ring surface in a direction away from the can bottom. This conical surface extends radially inwardly a sufficient distance to contact unsupported flange portions between the flanging rollers to limit the degree of elastic sagging of these portions.

    Abstract translation: 具有可自由旋转的旋转凸缘辊(12)的一簇的凸缘头(10)组件包括止挡环(26),凸缘(68)在最终凸缘成形阶段期间撞击该止动环以将凸缘限制到特定直径。 为了防止凸缘进入形成在旋转辊和静止止动环之间的裂纹(72),提供了一个将止动环表面(70)与辊形成表面(66)间隔开的台阶(80)。 以这种方式,随着凸缘(68)的末端边缘在最终成形期间在折边辊周围滑动,它将越过裂纹(72)并穿过台阶(80),以便落在形成在凸缘 步进和停止环表面。 在优选实施例中,台阶是从止动环表面沿远离罐底的方向延伸的锥形表面。 该锥形表面径向向内延伸足够的距离以接触凸缘辊之间的未支撑的凸缘部分,以限制这些部分的弹性下垂的程度。

    APPARATUS FOR AND PROCESS OF DIRECT CASTING OF METAL STRIP
    155.
    发明授权
    APPARATUS FOR AND PROCESS OF DIRECT CASTING OF METAL STRIP 失效
    金属条直接铸造的设备和工艺

    公开(公告)号:EP0353293B1

    公开(公告)日:1993-05-26

    申请号:EP89902493.9

    申请日:1988-12-29

    CPC classification number: B22D11/0622

    Abstract: A melt drag metal strip casting system (10) of the type wherein molten metal (20) is delivered from a supply (18) of the molten metal into contact with a chill surface (14) at a casting station and the chill surface (14) is driven for movement in a path past the casting station at a predetermined linear rate to quench and withdraw a continuous strip (16) of metal from the molten metal supply (18), the strip (16) having a bottom surface adhering to the chill surface and an unsolidified top surface as it is withdrawn from the molten metal supply (18), includes a top roll (80) adjustably mounted above the chill surface (14) and spaced therefrom by a distance substantially equal to the thickness of the strip (16) desired with the top roll (80) in contact with the unsolidified top surface of the strip (16), with the temperature of the top roll surface (90) in contact with the unsolidified top surface of the strip (16) being maintained at a level which will not solidify the top surface of the metal being cast.

    Liquefied gas subcooler and pressure regulator
    156.
    发明公开
    Liquefied gas subcooler and pressure regulator 失效
    Flüssiggas-Unterkühlerund -Druckregler。

    公开(公告)号:EP0307092A1

    公开(公告)日:1989-03-15

    申请号:EP88307486.6

    申请日:1988-08-12

    Abstract: An apparatus is disclosed for regulating a liquefied gas input stream for temperature and pressure. The apparatus produces a pressurized head of liquefied gas while removing gaseous material to produce a constant temperature and pressure liquefied gas exit stream.
    The apparatus comprises a chamber (15) having an inlet (12) for liquid gas and a gas exhaust 30, toward the upper end of the chamber and a column (22) opening from the lower end of the chamber, the lower end of the column being in communication with an outlet (26) and with the lower end of a tube (28) which surrounds the column and opens into the lower end of the chamber. The chamber is provided with a float (18) which controls the liquid level within the chamber.

    Abstract translation: 公开了一种用于调节用于温度和压力的液化气输入流的装置。 该设备产生液化气体的加压头,同时除去气态物质以产生恒定温度和压力的液化气体出口流。 该装置包括具有用于液体气体的入口(12)和朝向腔室的上端的气体排出口30的腔室(15)和从腔室的下端开口的柱体(22), 柱与出口(26)连通并且与管(28)的下端连通,该管围绕柱并且通向腔室的下端。 腔室设有一个浮子(18),它控制腔室内的液位。

    Process for carbothermic reduction of alumina
    158.
    发明公开
    Process for carbothermic reduction of alumina 失效
    瓦尔法热

    公开(公告)号:EP0126810A1

    公开(公告)日:1984-12-05

    申请号:EP83302911.9

    申请日:1983-05-20

    CPC classification number: F27B1/08 C22B21/02 C22B21/06

    Abstract: In a carbothermic process for producing aluminum, alumina and carbon are reacted in a furnace to produce aluminum contaminated with aluminum carbide. A charge material (28) including carbon is subjected to back reactions of vapors and gases passing upwardly therethrough and is transferred to the hearth (13) of the furnace (10) where it reacts with a molten slag layer (23) containing alumina to produce an aluminum product as a separate liquid layer (25). At least part of the alumina necessary to form the aluminum product may be supplied to the hearth without being subjected to the back reactions, for example by being transferred with slag (38) from a secondary decarbonizing furnace (30) to which alumina is directly fed. The reduction reaction on the hearth (13) may result in an aluminum product having a carbide content of 20 - 37%, which can be reduced to 4 - 15% in a subsequent reaction on the same hearth in the absence of both reactive carbon and of solid aluminum carbide, and still further to about 2% in the secondary furnace (30).

    Abstract translation: 在用于生产铝的碳热还原方法中,氧化铝和碳在炉中反应以产生被碳化铝污染的铝。 包含碳的充电材料(28)经受蒸气和从其向上通过的气体的反向反应,并被转移到炉(10)的炉床(13),在炉床(10)中与含有氧化铝的熔渣层(23)反应产生 铝产品作为单独的液体层(25)。 形成铝制品所需的氧化铝的至少一部分可以被供给到炉床而不受到反应,例如通过从直接进料氧化铝的二次脱碳炉(30)转移到炉渣(38) 。 在炉床(13)上的还原反应可能导致碳化物含量为20-37%的铝产品,其可以在不存在反应性碳的同一炉膛的后续反应中降低至4-15% 的固体碳化铝,并且在二次炉(30)中还进一步至约2%。

    NITRIC ACID RECONSTITUTION
    159.
    发明公开
    NITRIC ACID RECONSTITUTION 失效
    硝酸重建

    公开(公告)号:EP0032912A1

    公开(公告)日:1981-08-05

    申请号:EP80901345.0

    申请日:1980-05-09

    Inventor: DEWEY, John L.

    CPC classification number: C01B21/40

    Abstract: Un procede de reconstitution de gaz NOX en acide nitrique comprend les etapes suivantes: 1) les gaz sont mis au contact, a contre-courant, dans une ou plusieurs colonnes remplies de 50 a 60% d'acide nitrique refroidi pour extraire sous forme d'acide nitrique la plus grande partie des valeurs NOX introduites initialement et obtenir une solution acide sortant de la colonne ayant une temperature inferieure a 180 F environ; 2) les gaz residuels provenant de l'etape (1) sont comprimes entre 2 et 6 atmospheres absolus environ; et 3) les gaz comprimes de l'etape 2 sont mis en contact avec 50 a 60% environ d'acide nitrique dans une colonne d'absorption a contre-courant pour extraire sensiblement toutes les valeurs NOX restantes provenant du courant gazeux.

    Abstract translation: 将NO x气体回收成硝酸的方法包括以下步骤:1)使气体在一个或多个填充有50至60%冷却的硝酸的塔中逆流接触以提取 硝酸首先引入大部分NOX值并获得酸溶液,离开塔的温度低于约180°F; 2)将来自步骤(1)的残余气体压缩到约2至6个绝对大气压之间; 和3)步骤2的压缩气体在逆流吸收塔中与约50至60%的硝酸接触以基本上从气流中回收所有剩余的NOX值。

    A FREE MACHINING ALUMINUM ALLOY CONTAINING BISMUTH OR BISMUTH-TIN FOR FREE MACHINING AND A METHOD OF USE
    160.
    发明授权
    A FREE MACHINING ALUMINUM ALLOY CONTAINING BISMUTH OR BISMUTH-TIN FOR FREE MACHINING AND A METHOD OF USE 无效
    机用铝材铝合金或铋铋锡及其用途

    公开(公告)号:EP1214456B1

    公开(公告)日:2005-12-28

    申请号:EP00946803.4

    申请日:2000-07-12

    CPC classification number: C22C21/003

    Abstract: One free machining aluminum alloy includes bismuth as a free machining elemental constituent that functions as a discontinuity in the aluminum alloy matrix rather than a low melting point compound. Using bismuth in weight percents of the total composition ranging between 0.1 % and 3.0 % improves both machinability and mechanical properties. The bismuth can act as a substitute for another free machining constituent in a free machining aluminum alloy or can be added to an aluminum alloy to improve its machinability. Another free machining aluminum alloy has bismuth and tin as free machining constituents for improved machining. When using bismuth and tin, the bismuth ranges between 0.1 and 3.0 % by weight and the tin ranges between 0.1 and 1.5 % by weight.

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