Wire, rod, stick, and the like, with or without fluxing agent for
welding applications
    3.
    发明授权
    Wire, rod, stick, and the like, with or without fluxing agent for welding applications 失效
    电线,棒,棒等,具有或不具有用于焊接应用的助熔剂

    公开(公告)号:US4224267A

    公开(公告)日:1980-09-23

    申请号:US891089

    申请日:1978-03-28

    IPC分类号: B23K35/28 B23K35/40 B22F1/00

    CPC分类号: B23K35/40 B23K35/286

    摘要: An improved wire, rod, stick, and the like to be stored, packaged, transported, and fed into welding apparatus is manufactured so that the ultimate alloying stage is performed when used as filler material, or consumable electrode during welding operation. The wire, rod, stick, according to the invention, which may be with or without fluxing agent, is obtained by selecting constituents in relation to a desired alloy system, mixing the selected constituents, and forming a wire, rod or stick cold working, or by extrusion, the alloy system being obtained at the ultimate welding step with the intermediary wire, rod or stick.

    摘要翻译: 制造要被储存,包装,运输和送入焊接设备的改进的电线,棒,棒等,以便在焊接操作期间用作填充材料或可消耗电极时执行最终的合金化阶段。 通过根据期望的合金系统选择组分,混合所选择的组分,并形成电线,棒或棒冷加工,获得根据本发明的可以具有或不具有助熔剂的线,棒,棒, 或者通过挤出,在最终焊接步骤中用中间线,棒或棒获得合金系统。

    Methods of making high performance compacts and products
    5.
    发明授权
    Methods of making high performance compacts and products 失效
    制造高性能压克力和产品的方法

    公开(公告)号:US4954170A

    公开(公告)日:1990-09-04

    申请号:US374324

    申请日:1989-06-30

    摘要: High density compacts are made by providing a compactable particulate combination of Class 1 metals selected from at least one of Ag, Cu and Al, with material selected from at least one of CdO, SnO, SnO.sub.2, C, Co, Ni, Fe, Cr, Cr.sub.3 C.sub.2, Cr.sub.7 C.sub.3, W, WC, W.sub.2 C, WB, Mo, Mo.sub.2 C, MoB, Mo.sub.2 B, TiC, TiN, TiB.sub.2, Si, SiC, Si.sub.3 N.sub.4, usually by mixing powders of each, step (1); uniaxially pressing the powders to a density of from 60% to 95%, to provide a compact, step (2); hot densifying the compact at a pressure between 352 kg/cm.sup.2 (5,000 psi) and 3,172 kg/cm.sup.2 (45,000 psi) and at a temperature from 50.degree. C. to 100.degree. C. below the melting point or decomposition point of the lower melting component of the compact, to provide densification of the compact to over 97% of theoretical density; step (3); and cooling the compact, step (4).

    摘要翻译: 通过提供选自Ag,Cu和Al中的至少一种的1级金属的可压实颗粒组合与选自CdO,SnO,SnO 2,C,Co,Ni,Fe,Cr中的至少一种的材料制成高密度压块 ,Cr3C2,Cr7C3,W,WC,W2C,WB,Mo,Mo2C,MoB,Mo2B,TiC,TiN,TiB2,Si,SiC,Si3N4,通常通过混合各自的步骤(1) 将粉末单轴压制至60%至95%的密度,以提供紧凑的步骤(2); 在352kg / cm 2(5,000psi)和3,172kg / cm 2(45,000psi)之间的压力下和在较低熔点的熔点或分解点的50℃至100℃的温度下热致密化压块 压块的组成,使致密体的致密化达到理论密度的97%以上; 步骤(3); 并冷却压块,步骤(4)。

    Superconductor wire and methods of constructing same
    6.
    发明授权
    Superconductor wire and methods of constructing same 失效
    超导线及其构造方法

    公开(公告)号:US4863804A

    公开(公告)日:1989-09-05

    申请号:US802900

    申请日:1985-11-29

    摘要: Superconductor wire, and methods of constructing same, including one or more filaments formed of submicron-particle superconductor powder each surrounded by an encapsulating sheath having a composite wall. The composite wall includes a ductile outer skin surrounding a relatively harder, higher yield strength inner wall portion. The harder, higher strength inner wall portion improves dimensional uniformity of the filaments as the wire is fabricated, with the potential for enhanced superconducting performance, while the ductile outer skin enhances metallurgical bonding between the outer skins of adjacent filaments, to ensure a homogenous, thermally conductive and normally electrically conductive matrix.

    摘要翻译: 超导体线及其构造方法,包括由具有复合壁的封装护套围绕的亚微米超导体粉末形成的一根或多根细丝。 复合壁包括围绕相对较硬,较高屈服强度的内壁部分的延性外皮。 较硬的较高强度的内壁部分提高了线材制造时的细丝的尺寸均匀性,具有增强的超导性能的潜力,而韧性外皮增强了相邻长丝的外皮之间的冶金结合,以确保均匀的热 导电和正常导电的基体。

    Method of treating a coating on a reactor coolant pump sealing surface
    9.
    发明授权
    Method of treating a coating on a reactor coolant pump sealing surface 失效
    处理反应堆冷却剂泵密封面上的涂层的方法

    公开(公告)号:US4978487A

    公开(公告)日:1990-12-18

    申请号:US296654

    申请日:1989-01-13

    CPC分类号: B22F3/1208 C23C4/18

    摘要: An annular chromium carbide coating on an annular sealing surface of a stainless steel sealing assembly component for use in a nuclear reactor coolant pump, is treated by encasing at least the chromium carbide coating on the stainless steel sealing surface by applying a metallic cover thereover, evacuating the atmosphere between the cover and the coating on the sealing surface, hot isostatic pressing the stainless steel sealing assembly component and the chromium carbide coating thereon encased by the cover, cooling the sealing assembly component and the coating thereon encased by the cover, and after cooling thereof removing the cover from the coating. The result is a chromium carbide coating on the sealing component substrate densified substantially to its full theoretical density (greater than 99%) and metallurgically bonded by the hot isostatic pressing to the substrate exterior surface.

    Vacuum circuit interrupter contacts containing chromium dispersions
    10.
    发明授权
    Vacuum circuit interrupter contacts containing chromium dispersions 失效
    含铬分散体的真空断路器触点

    公开(公告)号:US4766274A

    公开(公告)日:1988-08-23

    申请号:US147420

    申请日:1988-01-25

    摘要: A powdered metallurgical procedure for forming chromium copper contacts used in vacuum circuit interrupters, in which prealloyed powder formed by mixing to copper, chromium of between two to thirty-seven weight percent is rapidly solidified after melting at about 1100.degree. C. to 1500.degree. C. This powder may be blended with additional chromium of between 12 to 50 weight percent with a maximum of fifty-five weight percent of chromium in the final contact structure. This blended mixture may then be either (i) cold pressed at 100,000 psig. and vacuum sintered at 800.degree. to 1400.degree. C.; or (ii) be subjected to hot isostatic pressure of 10,000 to 30,000 psig. at between 700.degree. C. to 1080.degree. C.; or (iii) containing the blended copper-chromium powder and the additional chromium powder into an evacuated can and hot extruding the can between 400.degree. C. to 900.degree. C., to form the contacts.

    摘要翻译: 在真空断路器中使用的用于形成铬铜触点的粉末冶金方法,其中通过混合形成的铜,二至三十七重量%的铬形成的预合金粉末在约1100℃至1500℃熔化后快速固化 该粉末可以与最终接触结构中的铬重量的比例为12-50重量%,最多为五十五重量%的铬。 该混合混合物可以(i)以100,000psig冷压。 并在800〜1400℃真空烧结。 或(ii)经受10,000至30,000psig的热等静压。 在700℃至1080℃之间。 或(iii)将共混的铜 - 铬粉末和另外的铬粉末包含在抽真空的罐中,并将罐热挤压在400℃至900℃之间,以形成接触。