HARDENER COMPOSITION FOR EPOXY RESINS
    1.
    发明申请
    HARDENER COMPOSITION FOR EPOXY RESINS 审中-公开
    环氧树脂硬化剂组合物

    公开(公告)号:US20120083564A1

    公开(公告)日:2012-04-05

    申请号:US13263766

    申请日:2010-06-14

    摘要: A composition comprising: a) an epoxy resin; and b) a hardener comprising a copolymer of: i) an ethylenically unsaturated anhydride, and ii) a vinyl compound, wherein the vinyl compound is styrene or a styrene derivative and wherein the copolymer has an anhydride content of less than 15 weight percent, based on the total weight of the copolymer, wherein said composition is prepared from a halogen-containing compound, and uses thereof, are disclosed.

    摘要翻译: 一种组合物,其包含:a)环氧树脂; 和b)包含以下共聚物的固化剂:i)烯属不饱和酸酐和ii)乙烯基化合物,其中所述乙烯基化合物是苯乙烯或苯乙烯衍生物,并且其中所述共聚物的酸酐含量小于15重量% 关于共聚物的总重量,其中所述组合物由含卤素化合物制备及其用途。

    Methods for producing high purity magnesium alloys
    2.
    发明授权
    Methods for producing high purity magnesium alloys 失效
    生产高纯度镁合金的方法

    公开(公告)号:US5248477A

    公开(公告)日:1993-09-28

    申请号:US964322

    申请日:1992-10-21

    IPC分类号: C22C1/02

    摘要: A method for producing a high purity magnesium alloy is disclosed in which the alloying components are introduced in the molten state into molten magnesium. In accordance with the process of the invention, a predetermined amount of primary magnesium is heated and melted in a crucible. Predetermined amounts of desired alloying metals are selected and heated to their melting temperature in a separate crucible. The molten alloying metals are then introduced into the molten magnesium to substantially instantaneously alloy with the molten magnesium in a reaction raising the temperature of the melt. Elemental manganese when first alloyed with other alloying metals prior to its addition to the molten magnesium is found to consistently be more effective in reducing the iron impurity level of the melt to a level below 50 ppm. The introduction of a molten alloy of manganese and one or more rare earth metals into the molten magnesium, reduces a settling out of the rare earth metal from the melt and increases the alloying efficiency for the rare earth metal to greater than 80%. The efficiency of the process of the invention is substantially increased, the consumption of time and energy is decreased, and the production of magnesium chloride slag and gaseous HCl is avoided.

    摘要翻译: 公开了一种高纯度镁合金的制造方法,其中将熔融状态的合金成分引入熔融镁中。 根据本发明的方法,将预定量的初级镁在坩埚中加热熔化。 选择预定量的所需合金金属并在单独的坩埚中将其加热至其熔融温度。 然后将熔融的合金金属引入熔融镁中,以使熔融镁基本上瞬间与熔融镁合金,从而提高熔体的温度。 在添加到熔融镁中之前首先与其它合金金属合金化的元素锰被发现一致地更有效地将熔体的铁杂质水平降低到低于50ppm的水平。 将锰和一种或多种稀土金属的熔融合金引入熔融镁中,减少了稀土金属从熔体中的沉降,并使稀土金属的合金化效率提高到80%以上。 本发明方法的效率显着增加,时间和能量的消耗减少,并且避免了生产氯化镁渣和气态HCl。

    Apparatus and method for forming a wear-resistant metal composition
    3.
    发明授权
    Apparatus and method for forming a wear-resistant metal composition 失效
    用于形成耐磨金属组合物的装置和方法

    公开(公告)号:US4605438A

    公开(公告)日:1986-08-12

    申请号:US749855

    申请日:1985-06-28

    摘要: The invention described herein is an apparatus and method for forming a wear-resistant metal composition. As a specific example, aluminum oxide powder is added to a magnesium alloy to provide a wear-resistant magnesium composition. The magnesium alloy, as the base metal, is placed in a crucible and melted with a burner positioned external to the crucible. A pump having a suction side and a discharge side is mounted on the crucible, with the pump head being suspended below the surface of the molten magnesium. The pump includes a feed tube connected to the suction side, and this tube has a suction opening therein which lies partly above and partly below the surface of the molten metal. The aluminum oxide is fed into the feed tube, and the suction action of the pump causes a vortex at the molten metal surface. The vortex pulls the molten magnesium through the suction opening where it mixes with the aluminum oxide powder. The resulting blend of magnesium and aluminum oxide gives a good, wear-resistant magnesium product.

    摘要翻译: 本文所述的发明是用于形成耐磨金属组合物的装置和方法。 作为具体实例,将氧化铝粉末加入到镁合金中以提供耐磨镁组合物。 将镁合金作为基底金属放置在坩埚中并用位于坩埚外部的燃烧器熔化。 具有吸入侧和排出侧的泵安装在坩埚上,泵头悬挂在熔融镁的表面下方。 泵包括连接到吸入侧的进料管,并且该管在其中具有位于熔融金属表面的部分上方且部分位于其下方的吸入口。 氧化铝被送入进料管,并且泵的抽吸作用在熔融金属表面引起漩涡。 涡流将熔融的镁通过吸入口拉出,在那里它与氧化铝粉末混合。 所得到的镁和氧化铝的混合物产生良好的耐磨镁产品。

    Method and apparatus for handling molten metals
    7.
    发明授权
    Method and apparatus for handling molten metals 失效
    处理熔融金属的方法和装置

    公开(公告)号:US5407000A

    公开(公告)日:1995-04-18

    申请号:US837298

    申请日:1992-02-13

    CPC分类号: B22D17/30 B22D17/32

    摘要: An automatic handling system is described for delivering a molten metal, such as magnesium or magnesium alloys, to a casting machine. The handling system comprises a programmable logic controller (PLC) for monitoring and controlling the sequential delivery of shots of a precise quantity of molten metal from a furnace or holding pot to a shot delivery apparatus of the casting machine. In the preferred system, the PLC also monitors and/or controls the temperatures of the molten metal in the holding pot and in a metal transfer system, the operation of a pump for pumping molten metal from the holding pot to the shot delivery apparatus, and the level of metal in the pot, and the operation of the the casting machine.

    摘要翻译: 描述了用于将熔融金属(例如镁或镁合金)输送到铸造机器的自动处理系统。 处理系统包括可编程逻辑控制器(PLC),用于监测和控制从熔炉或保持罐到铸造机的喷射输送装置的精确量的熔融金属的连续输送。 在优选的系统中,PLC还监视和/或控制储存罐和金属转移系统中的熔融金属的温度,用于将熔融金属从储存罐抽吸到喷射输送装置的操作,以及 罐中的金属水平,以及铸造机的运行。

    Method and apparatus for charging metal to a die cast
    8.
    发明授权
    Method and apparatus for charging metal to a die cast 失效
    将金属装入压铸件的方法和装置

    公开(公告)号:US5388633A

    公开(公告)日:1995-02-14

    申请号:US17099

    申请日:1993-04-15

    CPC分类号: B22D17/30 B22D17/32

    摘要: An automatic ladling system is described for delivering a molten metal to the mold or die of a molding or casting machine. The ladling system comprises a programmable logic controller (PLC) for monitoring and controlling the sequential delivery of shots of a precise quantity of molten metal from a furnace or holding pot to a shot delivery apparatus of the casting machine. In the preferred system, the PLC also monitors and/or controls the temperature of the molten metal in the holding pot, the temperature of the molten metal in a metal transfer system, the operation of a pump for pumping molten metal from the holding pot to the shot delivery apparatus, the level of molten metal in the pot, and the operation of the casting machine.

    摘要翻译: 描述了一种用于将熔融金属输送到模制或铸造机的模具或模具中的自动包扎系统。 捆扎系统包括可编程逻辑控制器(PLC),用于监测和控制从炉或保持罐到铸造机的射出输送装置的精确量的熔融金属的顺序输送。 在优选的系统中,PLC还监测和/或控制储存罐中的熔融金属的温度,金属转移系统中的熔融金属的温度,将来自保持罐的熔融金属泵送到 喷丸装置,罐中的熔融金属的水平和铸造机的操作。