Gun barrel for use at high temperature
    2.
    发明授权
    Gun barrel for use at high temperature 失效
    枪筒在高温下使用

    公开(公告)号:US4669212A

    公开(公告)日:1987-06-02

    申请号:US665864

    申请日:1984-10-29

    摘要: The present invention provides a gun capable of operating at relatively higher temperatures. The barrel of the gun is made up of at least two layers. The inner layer is of a refractory material which may be a metal refractory or a non-metal refractory. The liner is bonded to an outer jacket material formed of an alloy of nickel, aluminum and molybdenum. The coefficient of expansion of the liner and of the jacket are relatively low so that the gun does not expand extensively when heated by intensive use. The jacket metal is of higher strength at elevated temperature than is the conventional gun barrel steel.

    摘要翻译: 本发明提供能够在较高温度下操作的枪。 枪的枪管至少由两层组成。 内层是可以是金属耐火材料或非金属耐火材料的耐火材料。 衬垫与由镍,铝和钼的合金形成的外护套材料结合。 衬套和护套的膨胀系数相对较低,使得当通过密集使用加热时,枪不会广泛膨胀。 护套金属在高温下的强度比常规枪管钢强。

    Method for controlling dimensions of RSPD articles
    4.
    发明授权
    Method for controlling dimensions of RSPD articles 失效
    RSPD制品尺寸控制方法

    公开(公告)号:US4537742A

    公开(公告)日:1985-08-27

    申请号:US546234

    申请日:1983-10-28

    IPC分类号: B22F3/00 B22F3/16 C23C4/18

    摘要: A method is provided for forming articles from difficult to fabricate materials with precise internal dimensions. The article is first formed to approximate dimensions as a body using the material in powdered form. Plasma spray forming is proposed. The powder formed body is then brought to its final dimensions by consolidating and densifying the body about a densifying mandrel having a coefficient of expansion which is higher and outer dimensions which are slightly smaller than that of the body.

    摘要翻译: 提供了一种用于从具有精确内部尺寸的难以制造的材料形成制品的方法。 该物品首先形成为使用粉末形式的材料将尺寸近似为身体。 提出了等离子体喷雾成型。 然后将粉末成形体通过将膨胀系数更高的密封心轴固定并致密化身体并使其致密,并且外形尺寸略小于身体的尺寸。

    Alternating segment ring structure
    5.
    发明授权
    Alternating segment ring structure 失效
    交替段环结构

    公开(公告)号:US4726962A

    公开(公告)日:1988-02-23

    申请号:US849993

    申请日:1986-04-10

    IPC分类号: B22D25/00 B23P17/00 B05D1/08

    摘要: A ring is formed having alternating segments of ferromagnetic and paramagnetic materials. The ring is formed by first providing an annular ring of a high strength magnetic steel. Teeth are formed on the outer surface of the ring by forming troughs of the ferromagnetic material. Low pressure plasma deposition is used to fill in the troughs with a high strength paramagnetic material. The excess steel and excess plasma deposited material is removed to leave the finished ring of alternating segments of ferromagnetic and paramagnetic material.

    摘要翻译: 形成具有铁磁性和顺磁性材料的交替段的环。 通过首先提供高强度磁钢的环形圈来形成环。 通过形成铁磁材料的槽,在环的外表面上形成齿。 低压等离子体沉积用高强度顺磁材料填充槽。 去除多余的钢和过量的等离子体沉积材料以留下铁磁和顺磁材料的交替段的成品环。

    Diffusion barrier layer
    7.
    发明授权
    Diffusion barrier layer 失效
    扩散阻挡层

    公开(公告)号:US06306524B1

    公开(公告)日:2001-10-23

    申请号:US09275096

    申请日:1999-03-24

    IPC分类号: B32B1500

    摘要: A coating for use on a superalloy substrate comprising a diffusion barrier as an intermediate layer overlying the substrate and underlying a protective coating having a high aluminum content. The diffusion barrier layer is characterized by having low solubility for aluminum from either the substrate or the protective coating. Further, the diffusion barrier layer has low interdiffusivity for elements from the substrate and the coating, a minimal impact on the mechanical properties of the article which is coated, a minimal thermal expansion mismatch with both the substrate and the high aluminum content protective coating, and can be applied readily using existing coating application techniques. The diffusion barrier is preferably a single phase alloy or intermetallic compound.

    摘要翻译: 一种用于超级合金基底上的涂层,包括扩散阻挡层作为覆盖在基底上的中间层,并且具有高铝含量的保护涂层。 扩散阻挡层的特征在于从基底或保护涂层对铝的溶解度低。 此外,扩散阻挡层对于来自基底和涂层的元件具有低的相互扩散性,对被涂覆的制品的机械性能的最小影响与基底和高铝含量保护涂层的最小热膨胀失配,以及 可以使用现有的涂布应用技术容易地应用。 扩散阻挡层优选为单相合金或金属间化合物。

    Target/stem connection for x-ray tube anode assemblies
    8.
    发明授权
    Target/stem connection for x-ray tube anode assemblies 失效
    x射线管阳极组件的靶/杆连接

    公开(公告)号:US5577093A

    公开(公告)日:1996-11-19

    申请号:US272063

    申请日:1994-07-08

    IPC分类号: A61N5/10 H01J35/10

    摘要: An improved high performance x-ray system having a rotating anode therein which includes an improved target/stem connection wherein at least about 40,000 x-ray scan-seconds are accomplished prior to tube failure due to anode assembly imbalance comprising a metallic target and a metal stem bonded to provide a composite rotating x-ray tube target is disclosed. An insert of an alloy, for example, tantalum alloy, is placed between the target layer and the stem and then bonded thereto to produce a composite x-ray tube target/stem having a high remelt temperature and bond strength which retains its balance throughout the manufacturing process and during x-ray tube operations is also disclosed.

    摘要翻译: 一种改进的高性能x射线系统,其中具有旋转阳极,其包括改进的靶/杆连接,其中在由于阳极组件不平衡而引起的管故障之前至少达到约40,000个x射线扫描秒,其包括金属靶和金属 公开了杆接合以提供复合旋转X射线管靶。 将合金(例如钽合金)的插入件放置在目标层和杆之间,然后结合到其上以产生具有高重熔温度和粘合强度的复合X射线管靶/杆,其在整个过程中保持其平衡 制造工艺和X射线管操作期间也被公开。

    Ni-base alloy foils
    9.
    发明授权
    Ni-base alloy foils 失效
    镍基合金箔

    公开(公告)号:US5480468A

    公开(公告)日:1996-01-02

    申请号:US265891

    申请日:1994-06-27

    IPC分类号: B22F3/14 C22C19/03 B22F3/00

    摘要: Ni-base alloy foils are made directly from Ni-base alloy powders by hot pressing. These Ni-base alloy foils are characterized by having a thickness of 0.017 in. or less, and by the fact that they are fine-grained and substantially free of oxygen, nitrogen and deformation-induced defects. The as-pressed Ni-base foils are generally ductile and adapted for subsequent forming operations, including cold rolling. The reduction in thickness imparted in a single pass to a Ni-base alloy foil through cold-rolling ranged from 4-10% depending on the alloy composition. The total reduction in thickness ranged from about 10-50% based upon a plurality of such passes. For reductions in thickness greater than about 10%, annealing is employed for stress relief.

    摘要翻译: Ni基合金箔通过热压直接由Ni基合金粉末制成。 这些Ni基合金箔的特征在于其厚度为0.017英寸或更小,并且由于它们是细粒度的并且基本上没有氧,氮和变形引起的缺陷。 压制的镍基箔通常是延展性的,适用于随后的成型操作,包括冷轧。 根据合金组成,通过冷轧在单次通过Ni基合金箔中的厚度减少范围为4-10%。 基于多次这种通过,厚度的总减少范围为约10-50%。 为了减小厚度大于约10%,采用退火来减轻应力。

    Superalloy foils by hot isostatic pressing
    10.
    发明授权
    Superalloy foils by hot isostatic pressing 失效
    超耐热铝箔通过热等静压

    公开(公告)号:US5427735A

    公开(公告)日:1995-06-27

    申请号:US194967

    申请日:1994-02-14

    CPC分类号: B22F3/15 B22F1/0003 B22F5/00

    摘要: Dense superalloy foils are prepared by hot isostatically pressing a mixture of low melting alloy powders and high melting alloy powders at a temperature at least equal to or greater than three-quarters of the melting point of the low melting point alloy powder and below the melting point of the high melting point alloy powder, at a pressure of at least 10 thousand pounds per square inch for about one to five hours.

    摘要翻译: 通过在低熔点合金粉末和低熔点合金粉末的熔点的至少等于或大于四分之三的温度下等温压制低熔点合金粉末和高熔点合金粉末的混合物来制备密集的超合金箔 的高熔点合金粉末,在至少10,000磅/平方英寸的压力下约1至5小时。