Method of improving residual stress in circumferential weld zone
    1.
    发明授权
    Method of improving residual stress in circumferential weld zone 失效
    改善圆周焊缝区残余应力的方法

    公开(公告)号:US4772336A

    公开(公告)日:1988-09-20

    申请号:US15624

    申请日:1987-02-17

    IPC分类号: B23K31/00 C21D7/02 C21D9/50

    CPC分类号: C21D9/50

    摘要: A method for improving residual stress in a circumferential weld zone of a piping and the like which includes preventing deformation of the weld zone, and causing a local expansion or contraction of a portion of the piping axially spaced from the weld zone thereby effecting a plastic working so as to increase or decrease the diameter of piping. The method can effectively be applied to apparatus and pipe system which are used in a corrosive environment and under action of a static or dynamic outer load.

    摘要翻译: 一种用于改善管道等的周向焊接区域中的残余应力的方法,其包括防止焊接区域的变形,并且使得管道的一部分的局部膨胀或收缩与焊接区域轴向间隔开,从而实现塑性加工 以便增加或减少管道的直径。 该方法可以有效地应用于在腐蚀性环境中和静态或动态外部负载作用下使用的设备和管道系统。

    Method of subjecting welded structure to heat treatment
    2.
    发明授权
    Method of subjecting welded structure to heat treatment 失效
    对焊接结构进行热处理的方法

    公开(公告)号:US4731131A

    公开(公告)日:1988-03-15

    申请号:US817669

    申请日:1986-01-10

    IPC分类号: C21D9/00 C21D9/08 C21D9/50

    CPC分类号: C21D9/50 C21D9/08 C21D2221/10

    摘要: A method of subjecting a welded structure to heat treatment in which a tensile yield is produced on an inner surface of the welded structure and a compressive yield is produced on an outer surface of the welded structure by the steps of placing a cooling medium in the interior of the welded structure and heating the outer surface of the welded structure to cause a difference in temperature to exist between the inner surface and other surface of the welded structure. The method further includes the step of locally heating a weld by means of a heating member to improve residual stress in a localized area of the weld and repeating the improvement of the residual stress regarding another localized area of the weld.

    摘要翻译: 在焊接结构的外表面上通过以下步骤制造焊接结构体对焊接结构的内表面产生拉伸屈服的热处理和压缩屈服的方法:将冷却介质放置在内部 并加热焊接结构的外表面,导致焊接结构的内表面和其它表面之间存在温度差。 该方法还包括通过加热构件对焊缝进行局部加热以改善焊缝局部区域中的残余应力的步骤,并重复关于焊缝另一局部区域的残余应力的改善。

    Heat-treating method of weld portion of piping system and heating coil
for the heat treatment
    3.
    发明授权
    Heat-treating method of weld portion of piping system and heating coil for the heat treatment 失效
    用于热处理的管道系统和加热盘管焊接部分的热处理方法

    公开(公告)号:US4505763A

    公开(公告)日:1985-03-19

    申请号:US391305

    申请日:1982-06-23

    摘要: Herein disclosed are a method of heat-treating a weld zone of a piping system, in which the outer wall of a pipe is heated by means of a heating coil, while a coolant is present in said pipe, to establish a temperature difference between the inner and outer walls of said pipe thereby to prevent the weld zone of said pipe from corroding and cracking due to stress, and a heating coil therefor. The aforementioned heating coil is wound on the parent tube and the pipe welding desk generally concentrically thereof thereby to heat substantially uniformly all over the region of said weld zone.

    摘要翻译: 本文公开了一种对管道系统的焊接区域进行热处理的方法,其中管道的外壁借助于加热线圈被加热,同时在所述管道中存在冷却剂,以建立温度差 所述管的内壁和外壁,从而防止所述管的焊接区由于应力而腐蚀和开裂,以及用于其的加热线圈。 上述加热线圈通常同心地缠绕在母管和管焊台上,从而在所述焊接区域的整个区域上基本均匀地加热。

    Apparatus for magnetically detecting degradation of metal material using
superconductor sensor system and reference material data comparison
    6.
    发明授权
    Apparatus for magnetically detecting degradation of metal material using superconductor sensor system and reference material data comparison 失效
    使用超导传感器系统和参考材料数据比较来磁性检测金属材料退化的装置

    公开(公告)号:US5134368A

    公开(公告)日:1992-07-28

    申请号:US611426

    申请日:1990-11-08

    IPC分类号: G01N17/00 G01N27/72

    摘要: On the basis of a finding that a magnetic hysteresis of a metal material, among magnetization characteristics changing with secular degradation of the metal material, shows a clear correspondence with the degree of degradation of the metal material, a change in such a magnetization characteristic is measured to estimate the degree of secular degradation of the metal material. In a typical embodiment, a superconducting quantum interference device is used to detect the magnetization characteristic of a measuring object. According to the present invention, the degree of embrittlement of a metal material used in an environment of high temperatures can be quickly detected in a non-destructive fashion so that the danger of brittle fracture of the metal material can be reliably prevented.

    摘要翻译: 基于金属材料的磁滞特性随着金属材料的长期劣化而变化的磁化特性与金属材料的劣化程度明显对应的结果,测量了这种磁化特性的变化 以估计金属材料的长期退化程度。 在典型的实施例中,超导量子干涉装置用于检测测量对象的磁化特性。 根据本发明,可以以非破坏性的方式快速地检测在高温环境中使用的金属材料的脆化程度,从而可以可靠地防止金属材料脆性断裂的危险。

    Method and apparatus for detecting cracks
    7.
    发明授权
    Method and apparatus for detecting cracks 失效
    检测裂纹的方法和装置

    公开(公告)号:US4764970A

    公开(公告)日:1988-08-16

    申请号:US852313

    申请日:1986-04-15

    IPC分类号: G01N27/20 G06K9/00

    CPC分类号: G01N27/20

    摘要: The invention scans potential measurement terminals on the surface of a structural member to measure a potential distribution on the surface, detects the direction of a crack from the potential distribution and determining a detailed potential distribution in the direction of the crack thus detected. This potential distribution is compared with master curves of the potential distributions of cracks of various shapes, that have been obtained by analysis in advance, in order to detect the shape of the crack. The present invention can detect accurately a crack shape.

    摘要翻译: 本发明扫描结构构件表面上的潜在测量端子以测量表面上的电位分布,从电位分布检测裂纹的方向,并确定在所检测的裂纹方向上的详细电势分布。 将该电位分布与通过预先分析获得的各种形状的裂纹的电位分布的主曲线进行比较,以便检测裂纹的形状。 本发明可以准确地检测裂纹形状。

    X-Ray diffraction apparatus
    8.
    发明授权
    X-Ray diffraction apparatus 失效
    X射线衍射装置

    公开(公告)号:US4426718A

    公开(公告)日:1984-01-17

    申请号:US296787

    申请日:1981-08-27

    IPC分类号: G01L1/00 G01N23/207 G01N23/20

    CPC分类号: G01N23/207 G01N2223/632

    摘要: The X-ray diffraction apparatus of the invention includes means capable of detecting the position and intensity distribution of the diffracted X-ray with respect to a thin bundle X-ray and means for moving the former means to a position at which the former means is capable of detecting the diffracted X-ray, and makes it possible to reliably and easily carry out rough detection of the position of the diffracted X-ray and fine detection of the intensity distribution of the diffracted X-ray without increasing the size of the diffracted X-ray detecting means.

    摘要翻译: 本发明的X射线衍射装置包括能够检测衍射X射线相对于薄束X射线的位置和强度分布的装置,以及用于将前一装置移动到前一装置的位置的装置 能够检测衍射X射线,并且能够可靠且容易地进行衍射X射线位置的粗略检测,并且能够精细地检测衍射X射线的强度分布,而不增加衍射的X射线的尺寸 X射线检测装置。

    Welding method of turbine diaphragm
    9.
    发明授权
    Welding method of turbine diaphragm 失效
    涡轮隔膜焊接方法

    公开(公告)号:US4288677A

    公开(公告)日:1981-09-08

    申请号:US80458

    申请日:1979-10-01

    IPC分类号: B23K15/00 B23K15/04 F01D9/04

    摘要: A welding method of a turbine diaphragm for joining a spacer having a plurality of nozzle blades to outer and inner wheels. The spacer and the outer or inner wheel are welded from both sides. At first or inlet side of the diaphragm where a motive fluid flows into the diaphragm, the spacer and the outer and inner wheel are welded so that weld depth from the first side will be at most 0.5 L, wherein L is a distance between the first side and the top of the nozzle blade. At the second or outlet side of the diaphragm, from which the motive fluid exits, the spacer and the outer and inner wheels are weld so that a welded depth from the second side will be at least 0.3 C, wherein C is height of the nozzle blades.

    摘要翻译: 一种用于将具有多个喷嘴叶片的间隔件接合到外轮和内轮的涡轮隔膜的焊接方法。 间隔件和外轮或内轮从两侧焊接。 在隔膜的第一或入口侧,其中运动流体流入隔膜中,间隔件和外轮和内轮被焊接,使得来自第一侧的焊接深度将至多为0.5L,其中L是第一 侧面和喷嘴刀片的顶部。 在膜片的第二或出口侧,运动流体从中流出,间隔件和外轮和内轮是焊接的,使得来自第二侧的焊接深度将至少为0.3℃,其中C是喷嘴的高度 刀片。

    Water quality inspection method and apparatus therefor
    10.
    发明授权
    Water quality inspection method and apparatus therefor 失效
    水质检验方法及设备

    公开(公告)号:US5110537A

    公开(公告)日:1992-05-05

    申请号:US484914

    申请日:1990-02-26

    CPC分类号: G21C17/022

    摘要: A method and apparatus for inspecting the change in a water quality in terms of the change in a corrosion rate by detecting the capacity change between opposed electrodes due to the corrosion of electrode surfaces. As a result, the water quality can be continuously monitored over a long time while leaving the electrodes in the water to be inspected. Thus, the method and apparatus are suited for controlling the water quality especially in an atomic reactor vessel.

    摘要翻译: 通过检测由于电极表面的腐蚀引起的相对电极之间的容量变化来检查腐蚀速率变化方面的水质变化的方法和装置。 结果,可以在将电极留在待检查的水中的同时长时间地连续监测水质。 因此,该方法和装置适合于控制水质,特别是在原子反应堆容器中。