Desulphuration of metals
    4.
    发明授权
    Desulphuration of metals 失效
    金属脱硫

    公开(公告)号:US4209325A

    公开(公告)日:1980-06-24

    申请号:US969977

    申请日:1978-12-15

    摘要: Injectable composition for desulphurizing molten ferrous metals, especially iron, comprises alkaline earth metal, preferably magnesium, and sintered mixture of lime and at least one fluxing agent. Magnesium is preferably 8 to 60% of composition and lime preferably is 45 to 95% of the sintered mixture. Fluxing agent is preferably alumina and fluoride. Composition enables rapid and efficient desulphurization and does not give large amounts of slag.

    摘要翻译: 用于脱硫熔融黑色金属,特别是铁的注射组合物包括碱土金属,优选镁,以及石灰和至少一种助熔剂的烧结混合物。 镁的组成优选为8〜60%,石灰优选为烧结体的45〜95%。 助焊剂优选为氧化铝和氟化物。 组合物可以快速有效的脱硫,不会产生大量的渣。

    Removable combustor liner for gas turbine engine combustor
    6.
    发明授权
    Removable combustor liner for gas turbine engine combustor 失效
    用于燃气轮机发动机燃烧器的可拆卸燃烧器衬套

    公开(公告)号:US5435139A

    公开(公告)日:1995-07-25

    申请号:US369297

    申请日:1995-01-06

    IPC分类号: F23R3/00 F23R3/06

    摘要: A gas turbine engine combustor 20 has a wall structure 22 including an outer wall 24 having a plurality of wall elements 26 attached thereto. Each wall element 26 has a flange 27 around its periphery which defines a chamber 28 between each wall element and the outer wall 24. Holes 30 in the outer wall 24 permit the flow of cooing air into each chamber 28 to provide impingement cooling of the wall elements 26. Holes 30 in the wall elements 26 permit the exhaustion of cooling air from the chambers to provide film cooling of the wall elements 26.

    摘要翻译: 燃气涡轮发动机燃烧器20具有壁结构22,该壁结构22包括具有附接到其上的多个壁元件26的外壁24。 每个壁元件26具有围绕其周边的凸缘27,其在每个壁元件和外壁24之间限定了腔室28.外壁24中的孔30允许冷凝空气流入每个室28以提供壁的冲击冷却 壁元件26中的孔30允许从腔室排出冷却空气以提供壁元件26的膜冷却。

    Copolyetherimides and process of preparation
    7.
    发明授权
    Copolyetherimides and process of preparation 失效
    共聚酰亚胺及其制备方法

    公开(公告)号:US4504650A

    公开(公告)日:1985-03-12

    申请号:US558176

    申请日:1983-12-05

    申请人: Stephen M. Cooper

    发明人: Stephen M. Cooper

    IPC分类号: C08G73/00 C08G73/10

    摘要: Copolyetherimides having random units in the structure and characterized by good transparency after molding are prepared by a process in which a dianhydride and a diamine are reacted at a temperature of at least 100.degree. C. to initiate polymerization, followed by the addition of a second anhydride and continuing the polymerization at the elevated temperature. Preferred features include conducting the reaction in a solvent and in the presence of a chain stopper, such as phthalic anhydride.

    摘要翻译: 通过使二酐和二胺在至少100℃的温度下反应以引发聚合,然后加入第二酸酐的方法制备在结构中具有随机单元并且成型后具有良好透明度的共聚酰胺 并在升高的温度下继续聚合。 优选的特征包括在溶剂中和在链终止剂如邻苯二甲酸酐存在下进行反应。

    Fiber optic cable with foamed plastic dummy members
    8.
    发明授权
    Fiber optic cable with foamed plastic dummy members 失效
    光纤电缆与发泡塑料虚拟构件

    公开(公告)号:US4550976A

    公开(公告)日:1985-11-05

    申请号:US648668

    申请日:1984-09-10

    IPC分类号: G02B6/44

    摘要: A fiber optic cable comprising an elongated core about the periphery of which is disposed a plurality of elongated tubes, one or more of the tubes containing elongated optical fibers, at least one elongated filler member ("dummy tube") having essentially the same outside diameter as the tubes containing the optical fibers composed of an elongated core means circumscribed by a coating of plastic containing a multiplicity of void spaces (e.g., foamed plastic) and a plastic jacket circumscribing the tubes and elongated filler member.

    摘要翻译: 一种光纤电缆,其包括围绕其周边的细长芯设置有多个细长管,一个或多个管包含细长光纤,至少一个细长填充构件(“虚拟管”)具有基本相同的外径 因为包含由细长的芯构成的光纤的管由机构包围多个空隙(例如,泡沫塑料)和塑料外套围绕的塑料外壳限定管和细长填充件。