Combined frictional false twisting device for ring spinning frame
    2.
    发明申请
    Combined frictional false twisting device for ring spinning frame 有权
    环锭纺纱机组合摩擦假捻装置

    公开(公告)号:US20150128555A1

    公开(公告)日:2015-05-14

    申请号:US14117201

    申请日:2012-02-16

    IPC分类号: D02G1/08 D01H7/92

    摘要: A frictional false twister is disclosed. The twister has a plurality of rotating friction plates located between the nip of the front rollers and the yarn guide. The friction plates are staggeringly arranged for rubbing a twisted yarn. The spinning direction of the twisted yarn is opposite to the rotating direction of the friction plates. Through the action of the frictional false twister, the twist of the yarn between the false twisting device to the front nip can be increased, shortening the twisting triangle height, and increasing the spinning strength. As the yarn and the outer surface of the friction plate make relative sliding and rubbing, the friction damping force correspondingly reduces the spinning tension in the twisting triangle.

    摘要翻译: 公开了一种摩擦假捻线器。 捻线机具有位于前辊的辊隙与导纱器之间的多个旋转摩擦片。 摩擦板交错布置,用于摩擦加捻纱线。 加捻纱线的纺丝方向与摩擦片的旋转方向相反。 通过摩擦假捻机的作用,能够提高假捻装置与前辊间的纱线捻度,缩短扭转三角形高度,提高纺丝强度。 由于纱线和摩擦片的外表面相对滑动和摩擦,摩擦阻尼力相应地减小了扭转三角形中的纺丝张力。

    METHOD FOR PRODUCING METAL ALLOY AND INTERMETALLIC PRODUCTS
    3.
    发明申请
    METHOD FOR PRODUCING METAL ALLOY AND INTERMETALLIC PRODUCTS 审中-公开
    生产金属合金和金属间化合物的方法

    公开(公告)号:US20090311123A1

    公开(公告)日:2009-12-17

    申请号:US12303098

    申请日:2007-05-31

    IPC分类号: B22F3/12 B32B15/02

    摘要: This invention relates to a method for producing alloy and intermetallic powders. Particularly to a method for the production of titanium based alloy and intermetallic powders. A first metal and a second metal oxide powder are mixed with a controlled metal/metal oxide molar ratio. This mixture is heated, becomes self propagating and leads to formation of a mixture of alloy liquid and a oxide solid. Pressure is applied to separate the phases and upon cooling produces a metallic solid. FIG. 1a shows an example of a solid crushed into a powder as produced by this method.

    摘要翻译: 本发明涉及一种生产合金和金属间粉末的方法。 特别涉及钛基合金和金属间化合物粉末的制造方法。 第一金属和第二金属氧化物粉末与受控的金属/金属氧化物摩尔比混合。 该混合物被加热,变得自蔓延,并形成合金液和氧化物固体的混合物。 施加压力以分离相,并且在冷却时产生金属固体。 图。 图1a示出了通过该方法制成的粉碎的固体的实例。

    METHOD FOR PURIFICATION OF METAL BASED ALLOY AND INTERMETALLIC POWDERS
    5.
    发明申请
    METHOD FOR PURIFICATION OF METAL BASED ALLOY AND INTERMETALLIC POWDERS 审中-公开
    用于纯化金属基合金和金属间粉末的方法

    公开(公告)号:US20100064852A1

    公开(公告)日:2010-03-18

    申请号:US12517016

    申请日:2007-11-30

    申请人: Deliang Zhang

    发明人: Deliang Zhang

    IPC分类号: B22F1/00 B22F9/16

    摘要: This invention relates to a method for purifying metal alloy and intermetallic powders. Particularly, the present invention relates to a method for the reduction or elimination of the content of the dissolved oxygen and to remove the metal oxide inclusions from metal alloy and intermetallic powders including the steps of: a) placing the metal in powder form into a reaction apparatus; b) introducing a suitable carrier substance to the metal powder; and c) introducing calcium vapour into the reaction apparatus to create a reaction between the metallic powder and calcium vapour thereby removing inclusions in the metal as shown in FIG. 11.

    摘要翻译: 本发明涉及金属合金和金属间化合物粉末的净化方法。 特别地,本发明涉及一种减少或消除溶解氧含量并从金属合金和金属间粉末中除去金属氧化物夹杂物的方法,包括以下步骤:a)将粉末状金属置于反应器 仪器; b)向金属粉末引入合适的载体物质; 和c)将钙蒸汽引入反应设备中以在金属粉末和钙蒸汽之间产生反应,从而去除金属中的夹杂物,如图3所示。 11。

    Titanium alloy based dispersion-strengthened composites
    8.
    发明授权
    Titanium alloy based dispersion-strengthened composites 失效
    钛合金基分散强化复合材料

    公开(公告)号:US06264719B1

    公开(公告)日:2001-07-24

    申请号:US09485876

    申请日:2000-02-16

    IPC分类号: B22F100

    摘要: Titanium based metal matrix composites reinforced with ceramic particulate are well known, based on a blend of titanium alloy powders with ceramic powders, e.g., aluminum oxide powders, utilizing a low energy ball milling process, followed by cold compacting and sintering to produce an appropriate composite. This prior art process is disadvantaged from the point of view that there are virtually no particles in the blend below the micrometer size range, which lack has a deleterious effect on the subsequent processing of the composite. This problem has been overcome by utilizing dry high energy intensive milling in the process, which has the effect of providing the necessary number of small particles below the micrometer size range as well as enhancing the reactivity of different particles with one another. In order to produce a titanium base alloy alumina metal matrix composite, titanium dioxide powder is blended with aluminum powder and subjected to dry high energy intensive milling until the separate particle phases achieve a size of 500 nanometers maximum. The intermediate powder product is then heated to form the titanium alloy/amumina metal matrix composite in which the ceramic particles have an average diameter of no more than 3 &mgr;, and the oxide consists of more than 10% and less than 60% by volume fraction of the total composite. The composites have extensive application to tough and strong engineering alloys.

    摘要翻译: 用陶瓷颗粒增强的钛基金属基复合材料是众所周知的,其基于钛合金粉末与陶瓷粉末的混合物,例如氧化铝粉末,利用低能球磨工艺,随后冷压制和烧结以产生合适的复合材料 。 从现有技术的观点来看,这种现有技术的方法是不利的,即混合物中几乎没有颗粒低于微米尺寸范围,这种缺乏对复合材料的后续加工具有不利影响。 通过在该方法中利用干式高能量强化研磨已经克服了这个问题,其具有在微米尺寸范围内提供必要数量的小颗粒以及提高不同颗粒彼此之间的反应性的效果。 为了生产钛基合金氧化铝金属基体复合材料,将二氧化钛粉末与铝粉末混合并进行干燥的高能量密集研磨,直到分离的颗粒相达到最大500纳米的尺寸。 然后将中间体粉末产物加热以形成其中陶瓷颗粒的平均直径不超过3μm的钛合金/氨基脲金属基质复合物,氧化物由10体积%至小于60体积%的分数组成 的总复合材料。 该复合材料广泛应用于坚韧耐用的工程合金。