HYDROGEN FATIGUE RESISTANT FERRITIC STEEL AND MANUFACTURING METHOD THEREOF
    11.
    发明申请
    HYDROGEN FATIGUE RESISTANT FERRITIC STEEL AND MANUFACTURING METHOD THEREOF 审中-公开
    氢化抗疲劳强化钢及其制造方法

    公开(公告)号:US20110305595A1

    公开(公告)日:2011-12-15

    申请号:US13203102

    申请日:2010-01-29

    摘要: A ferritic steel having tensile properties and fatigue properties capable of withstanding use in a hydrogen environment and a method of manufacture thereof are provided. By adding one or more element selected from among vanadium (V), titanium (Ti) and niobium (Nb) so that the steel includes, together with at least ferrite grains in the structure, a carbide or carbides of one or more element selected from among V, Ti and Nb, the reduction of area and the fatigue crack propagation rate of the ferritic steel in a hydrogen environment are improved. The advantages of the invention were confirmed in cases where the ferrite grains are small grains of 1 μm or less in size, and in cases where the ferrite grains are coarse grains from several micrometers to 20 μm in size, and moreover in cases where the ferrite grains are coarse grains from several micrometers to 60 μm in size.

    摘要翻译: 提供一种具有耐氢气环境中使用的拉伸性能和疲劳特性的铁素体钢及其制造方法。 通过添加选自钒(V​​),钛(Ti)和铌(Nb)中的一种或多种元素,使得钢至少与结构中的铁素体晶粒一起包含一种或多种元素的碳化物或碳化物, 在V,Ti和Nb中,在氢环境中铁素体钢的面积减小和疲劳裂纹扩展速率提高。 在铁素体晶粒尺寸小于1μm的小晶粒的情况下,在铁素体晶粒的尺寸为几微米至20μm的粗晶粒的情况下,在铁素体的情况下,在本发明的优点的情况下, 晶粒是尺寸从几微米到60μm的粗晶粒。

    Trip throttle valve
    12.
    发明授权
    Trip throttle valve 失效
    行程节流阀

    公开(公告)号:US4696452A

    公开(公告)日:1987-09-29

    申请号:US834103

    申请日:1986-02-24

    IPC分类号: F16K31/124 F16K31/143

    CPC分类号: F16K31/143 F16K31/124

    摘要: A trip throttle valve with a manual exerciser and combination of a hydraulic piston and a biasing force bearing sleeve is provided in place of a piston. The piston is not directly connected to a valve stem and the sleeve is threadably engaged with the valve stem so as to cause relative axial movement between the sleeve and the valve stem when the stem is rotated through the manual exerciser. The hydraulic portion of the valve is provided with a by-pass passage so that the piston is made axially movable toward the sleeve under the pressure which occurs when the by-pass passage for the hydraulic liquid is blocked but the piston is arrested at a certain axial position where the by-pass passage is still blocked and the axial movement of the sleeve is restricted against the piston. Blocking of the by-pass passage is arranged to take place after the axial separating distance between the sleeve and the piston reaches a predetermined value so that any inadvertent movement of the valve stem by the engagement of the piston with the sleeve is avoided.

    摘要翻译: 提供具有手动锻炼器和组合液压活塞和偏压力轴承套筒的行程节流阀来代替活塞。 活塞不直接连接到阀杆,并且套筒与阀杆螺纹接合,以便当阀杆通过手动锻炼器旋转时,使得套筒和阀杆之间产生相对的轴向运动。 阀的液压部分设置有旁通通道,使得当液压液体的旁通通道被阻塞但活塞在某一特定的位置被停止时,活塞能够在压力下朝向套筒轴向移动 旁路通道仍被阻挡的轴向位置,并且套筒的轴向运动被限制在活塞上。 旁通通道的封闭被布置成在套筒和活塞之间的轴向分离距离达到预定值之后发生,从而避免了通过活塞与套筒接合而导致的阀杆的任何无意的移动。

    WELDING EQUIPMENT FOR METALLIC MATERIALS AND METHOD FOR WELDING METALLIC MATERIALS
    18.
    发明申请
    WELDING EQUIPMENT FOR METALLIC MATERIALS AND METHOD FOR WELDING METALLIC MATERIALS 有权
    金属材料焊接设备及焊接金属材料的方法

    公开(公告)号:US20110303655A1

    公开(公告)日:2011-12-15

    申请号:US13121408

    申请日:2009-09-30

    IPC分类号: H05B6/06 B23K11/24

    摘要: A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment 1 sandwiches metallic materials 9 with a pair of electrodes 4, 4, and heats different regions of the metallic materials 9 by energization, with the pair of electrodes 4, 4 maintained at the same position with respect to the metallic materials 9. The welding equipment includes a first heating means 6 connected to the pair of electrodes 4, 4 for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means 8 for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit 10 for independently controlling the first and the second heating means 6, 8.

    摘要翻译: 提供了一种能够进行热处理的金属材料的焊接设备,例如在点焊中基于部分加热的回火。 焊接设备1通过一对电极4,4将金属材料9夹在中间,并通过通电而加热金属材料9的不同区域,同时电极对4,4相对于金属材料9保持在相同的位置。 焊接设备包括连接到一对电极4,4的第一加热装置6,用于加热和焊接通过将金属材料的轴线的横截面积投影在金属材料上而限定的圆的内部区域, 低第一频率的第二加热装置8,用于通过施加具有高于第一频率的第二频率的功率沿着圆加热环形区域的第二加热装置8以及用于独立地控制第一和第二加热的通电控制单元10 指6,8。

    Mass flow control method and device utilizing a sonic nozzle
    19.
    发明授权
    Mass flow control method and device utilizing a sonic nozzle 失效
    使用声波喷嘴的质量流量控制方法和装置

    公开(公告)号:US6012474A

    公开(公告)日:2000-01-11

    申请号:US850895

    申请日:1997-07-24

    IPC分类号: G05D7/06 F16K24/04 F17D1/16

    摘要: A control circuit (20) of a mass flow control device (1) retains the relation (Cd=f(ReTH)) between the Reynolds number and the actual discharge coefficient of a sonic nozzle (13) in the area where the Reynolds number is small. In such an area, the sonic nozzle can be used as a variable mass flow element for controlling mass flow rate. If a pressure Pu and a temperature Tu of an upstream fluid of the sonic nozzle 13 are detected, the theoretical mass flow rate QmTH and the theoretical Reynolds number ReTH can be calculated; since the actual discharge coefficient Cd can be calculated by the above relationship Cd=f(ReTH) based on the calculated Reynolds number, the actual mass flow rate Qm can be calculated based on the relation of Qm=Cd.multidot.QmTH. In the control circuit 20, in order to obtain the predetermined mass flow rate Qm, the upstream fluid pressure Pu and temperature Tu of the sonic nozzle are obtained based on the above relationship, and a variable valve (12) is driven so that the mass flow rate may have this value. Since the properties of the sonic nozzle can be made full use of, it is possible to control trace amounts of mass flow rate with extremely high accuracy.

    摘要翻译: 质量流量控制装置(1)的控制电路(20)保持雷诺数与声波喷嘴(13)的实际排放系数之间的关系(Cd = f(ReTH))在雷诺数为 小。 在这样的区域中,声波喷嘴可以用作用于控制质量流量的可变质量流量元件。 如果检测到声波喷嘴13的上游流体的压力Pu和温度Tu,则可以计算理论质量流量QmTH和理论雷诺数ReTH; 由于可以根据计算的雷诺数根据上述关系Cd = f(ReTH)来计算实际的放电系数Cd,所以可以基于Qm = CdxQmTH的关系来计算实际的质量流量Qm。 在控制电路20中,为了获得预定质量流量Qm,基于上述关系得到声波喷嘴的上游流体压力Pu和温度Tu,并且驱动可变阀(12),使得质量 流量可能有这个值。 由于可以充分利用声波喷嘴的特性,所以可以极高精度地控制痕量的质量流量。