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14 条记录 (耗时 0.061 秒)

    Method for reducing crystalline orientation of para-oxybenzoyl polyesters
    1.
    发明授权
    Method for reducing crystalline orientation of para-oxybenzoyl polyesters 失效
    降低对羟基苯甲酰聚酯的结晶取向的方法

    公开(公告)号：US3974250A

    公开(公告)日：1976-08-10

    申请号：US394023

    申请日：1973-09-04

    申请人： Steve G. Cottis ,  James Economy ,  Roger S. Storm ,  Luis C. Wohrer

    发明人： Steve G. Cottis ,  James Economy ,  Roger S. Storm ,  Luis C. Wohrer

    IPC分类号： B29B15/00 ,  B29B9/00 ,  B29B13/00 ,  B29B13/02 ,  B29B13/04 ,  C08G63/00 ,  C08G63/06 ,  C08J3/00 ,  C08J5/00 ,  B29B3/00

    CPC分类号： C08J3/00 ,  B29B13/00 ,  B29B13/02 ,  C08J5/00 ,  C08J2367/04

    摘要： Polyesters of para-oxybenzoyl are infusible and very resistant to acids and solvents, thus limiting the means by which such polymers can be fabricated. Such a polyester is made more amorphous, thus improving compression moldability, by subjecting it to a high temperature treatment, followed by a rapid quench. The resulting polymer has reduced crystalline orientation, as evidenced by X-ray diffraction patterns, and molded articles thereof have improved flexural strength, without adversely affecting the modulus. The thermal treatment is carried out on the polymer by heating at a temperature of at least 300.degree.C, and up to just below the decomposition temperature of the polymer, followed by quenching of the hot polymer.

    摘要翻译： 对羟基苯甲酰基的聚酯是不可渗透的，并且对酸和溶剂非常耐受，因此限制了可以制造这种聚合物的方法。 这样的聚酯制得更加无定形，从而通过对其进行高温处理，然后快速淬火来提高压模成型性。 如X射线衍射图所示，所得聚合物具有降低的晶体取向，并且其模塑制品具有改善的弯曲强度，而不会对模量产生不利影响。 通过在至少300℃的温度下加热至高于聚合物的分解温度，然后淬灭热聚合物，对聚合物进行热处理。

    Gun barrel and method of forming
    3.
    发明授权
    Gun barrel and method of forming 有权
    枪筒和成型方法

    公开(公告)号：US07721478B2

    公开(公告)日：2010-05-25

    申请号：US11115929

    申请日：2005-04-27

    申请人： James C. Withers ,  Lori A. Bracamonte ,  Roger S. Storm ,  Sion M. Pickard ,  Raouf O. Loutfy

    发明人： James C. Withers ,  Lori A. Bracamonte ,  Roger S. Storm ,  Sion M. Pickard ,  Raouf O. Loutfy

    IPC分类号： F41A21/02

    CPC分类号： F41A21/04 ,  F41A21/20

    摘要： A fabrication technique is described for producing lighter weight and improved wear and erosion resistant gun barrels. The barrels are produced in an unconventional manner from the inside bore to the outside diameter of the barrel and combine a refractory metal, metal alloy, or ceramic composite inner liner with a metal matrix composite (MMC) or titanium or other suitable high strength, lightweight metal or metal alloy outer shell. A unique aspect of the invention is that there is a compositional gradation from the liner at the inside bore to the overwrap which extends to the outside diameter of the barrel. A process is also described to produce barrels with a refractory metal liner with improved wear and erosion resistance by depositing the refractory metal on the ID of a pre-fabricated barrel.

    摘要翻译： 描述了一种制造技术，用于产生更轻的重量和改进的耐磨损和耐磨损的枪管。 桶以非常规的方式从内孔到桶的外径生产，并将难熔金属，金属合金或陶瓷复合内衬与金属基复合材料（MMC）或钛或其它合适的高强度重量轻 金属或金属合金外壳。 本发明的一个独特方面是存在从衬里在内孔到外包层的组合等级，其延伸到筒的外径。 还描述了一种方法以通过将难熔金属沉积在预制筒的ID上来生产具有改善的耐磨性和耐腐蚀性的耐火金属衬套的桶。

    Method of using a thermal plasma to produce a functionally graded composite surface layer on metals
    5.
    发明授权
    Method of using a thermal plasma to produce a functionally graded composite surface layer on metals 有权
    使用热等离子体在金属上产生功能梯度复合表面层的方法

    公开(公告)号：US08203095B2

    公开(公告)日：2012-06-19

    申请号：US11735939

    申请日：2007-04-16

    申请人： Roger S. Storm ,  Vladimir Shapovalov ,  James C. Withers ,  Raouf Loutfy

    发明人： Roger S. Storm ,  Vladimir Shapovalov ,  James C. Withers ,  Raouf Loutfy

    IPC分类号： B23K10/00

    CPC分类号： C23C8/24 ,  C23C8/36 ,  C23C26/00

    摘要： A method of material treatment in which the surface of a metal substrate is converted to a composite structure of the metal and its nitride or carbide utilizing a high temperature chemically active thermal plasma stream, and the product obtained from that method. The complex thermal plasma contains controllable additions of active gas, liquid or solid substances. The surface layer obtained is functionally graded to the substrate resulting in an excellent bond that resists delamination and spalling, and provides a significant increase in hardness, wear and erosion resistance, and corrosion resistance, and a decrease in coefficient of friction.

    摘要翻译： 一种材料处理方法，其中使用高温化学活性热等离子体流将金属基材的表面转化为金属及其氮化物或碳化物的复合结构，以及从该方法获得的产品。 复杂的热等离子体包含可控添加的活性气体，液体或固体物质。 所获得的表面层在功能上分级到基材，导致优异的粘合，抵抗剥离和剥落，并且显着提高硬度，耐磨性和耐冲蚀性，耐腐蚀性以及摩擦系数的降低。

    One-step curing method for manufacture of neutron absorbing plates
    8.
    发明授权
    One-step curing method for manufacture of neutron absorbing plates 失效
    用于制造中子吸收板的一步固化方法

    公开(公告)号：US4198322A

    公开(公告)日：1980-04-15

    申请号：US856378

    申请日：1977-12-01

    申请人： Roger S. Storm

    发明人： Roger S. Storm

    IPC分类号： C08K3/38 ,  G21F1/10 ,  C04B35/68

    CPC分类号： G21F1/103 ,  C08K3/38

    摘要： A one-step curing method for the manufacture of neutron absorbing articles, such as those of long thin plate form for use in storage racks for spent nuclear fuel, includes curing a mixture of boron carbide particles, phenolic resin in liquid state and phenolic resin in particulate solid form at an elevated temperature to produce a neutron absorbing article containing at least 6% of B.sup.10 content from the boron carbide thereof, 60% to 80% of boron carbide particles and 40% to 60% of irreversibly cured phenolic polymer, with the proportion of weight of phenolic resin in liquid state to that of phenolic resin in solid state being within the range of about 1:0.5 to 1:4, the temperature of the cure being in the range of about 130 to 200.degree. C. and the cure being effected over a period of about two to twenty hours. Because of the use of solid resin, in particulate form, together with the resin in liquid state, the neutron absorbing articles made include better bonds between the polymer and the boron carbide particles than would be obtainable by using the normally solid resin only and the phenolic polymer content of the article is greater than that which would be obtainable by a one-step cure effected when the curable phenolic resin is all in the liquid state and the mixture is not held in article form under compacting or pressing pressure.

    摘要翻译： 用于制造中子吸收制品的一步固化方法，例如用于用于乏核燃料的储存架的长薄板形式的中子吸收制品包括固化碳化硼颗粒，液态酚醛树脂和酚醛树脂的混合物 颗粒状固体形式，以产生含有其碳化硼至少6％的B10含量的中子吸收制品，60％至80％的碳化硼颗粒和40％至60％的不可逆固化的酚醛聚合物，其中 在液态的酚醛树脂的重量与固态酚醛树脂的重量比在约1:0.5至1:4的范围内，固化温度在约130至200℃的范围内， 治愈时间约为二至二十小时。 由于使用颗粒形式的固体树脂与树脂一起处于液态，所以制成的中子吸收制品包括聚合物和碳化硼颗粒之间的粘结比通过仅使用常规固体树脂和酚醛树脂可获得的更好的键 当可固化酚醛树脂全部处于液态并且混合物在压实或压制压力下不保持在制品形式时，制品的聚合物含量大于通过一步固化获得的含量。