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39 条记录 (耗时 0.014 秒)

    Dynamic shear rheometer and method
    2.
    发明授权
    Dynamic shear rheometer and method 失效
    动态剪切流变仪及方法

    公开(公告)号：US5271266A

    公开(公告)日：1993-12-21

    申请号：US803948

    申请日：1991-12-06

    申请人： Alan R. Eschbach

    发明人： Alan R. Eschbach

    IPC分类号： G01N11/00 ,  G01N3/00 ,  G01N3/02 ,  G01N11/14 ,  G01N11/16 ,  G01N33/42 ,  G01N11/02

    CPC分类号： G01N33/42 ,  G01N11/162 ,  G01N2203/0025 ,  G01N2203/0094 ,  G01N2203/0228

    摘要： An improvement in a rheometer and the method for measuring rheological properties of a viscoelastic test specimen at different temperatures, at which different temperatures the viscoelastic properties exhibit a relatively wide difference, wherein the test specimen is placed between and is coupled with opposed plates, one of the opposed plates is oscillated angularly relative the other of the opposed plates, and the angular displacement of one of the plates relative to the other of the plates and the torque associated with the relative angular displacement are measured within a predetermined optimum range of torque and angular displacement for determining the rheological properties, couples a first contact surface on one of the opposed plates with the test specimen to establish a first contact area between the one of the opposed plates and the test specimen when the test specimen is at one of the different temperatures, and couples a second contact surface on the one of the opposed plates with the test specimen to establish a second contact area between the one of the opposed plates and the test specimen when the test specimen is at another of the different temperatures, the first contact area being different in area from the second contact area such that, by virtue of the difference in area between the first and second contact areas, the torque and the relative angular displacement measured at each of the one and the another of the different temperatures fall within the predetermined optimum range.

    Friction and wear test device with pin-on-plate differential temperature distribution and self-adaptive adjustment
    6.
    发明授权
    Friction and wear test device with pin-on-plate differential temperature distribution and self-adaptive adjustment 有权

    公开(公告)号：US11686658B2

    公开(公告)日：2023-06-27

    申请号：US17621750

    申请日：2021-07-07

    申请人： JIANGSU UNIVERSITY

    发明人： Wei Chen ,  Peng Cao ,  Yishu Cao ,  Ying Bai ,  Wei Zhang ,  Zeming Wang

    IPC分类号： G01N3/56

    CPC分类号： G01N3/56 ,  G01N2203/0226 ,  G01N2203/0228

    摘要： A pin-on-plate friction and wear test device includes a high temperature heating chamber and a cooling pin. The high temperature heating chamber is fastened horizontally to the mobile base. The axis of the cooling pin is perpendicular to the upper surface of the mobile base. The electric resistance heating plate is located in the bottom closed space under the friction sample plate in the high temperature heating chamber. The electric resistance heats the fixed sample to experiment temperature. The inner layout of pin is a circling cooling channel where the cooling medium adjusts and cools the temperature of the sample. Thermocouples are separately distributed in the temperature measuring groove of the high temperature heating chamber and the temperature measuring hole of the cooling pin for real-time temperature measurement. The device can simulate the friction and wear properties of the high-strength steel plate and hot-stamping die in the differential temperature environment.

    Apparatus and method for transverse tensile strength testing of materials at extreme temperatures
    8.
    发明授权
    Apparatus and method for transverse tensile strength testing of materials at extreme temperatures 有权
    在极端温度下对材料进行横向拉伸强度试验的装置和方法

    公开(公告)号：US07971491B2

    公开(公告)日：2011-07-05

    申请号：US12400287

    申请日：2009-03-09

    申请人： Longin B. Greszczuk

    发明人： Longin B. Greszczuk

    IPC分类号： G01N3/08

    CPC分类号： G01N3/08 ,  G01N2203/0226 ,  G01N2203/0228 ,  Y10T428/2973

    摘要： A composite specimen for conducting transverse tension strength testing may include a solid cylinder comprising parallel opposing ends, a cylindrical surface extending between and around the parallel opposing ends, and only parallel planar plies extending between and perpendicular to the parallel opposing ends. The parallel planar plies may comprise fibers extending within the parallel planar plies.

    摘要翻译： 用于进行横向张力强度测试的复合试样可以包括实心圆筒，其包括平行的相对端，在平行的相对端之间和之间延伸的圆柱形表面，以及仅在平行的相对端之间并垂直于平行的相对端延伸的平行平面层。 平行平面层可以包括在平行平面层内延伸的纤维。

    Device for testing test pieces bending in an ambient cryogenic environment
    10.
    发明授权
    Device for testing test pieces bending in an ambient cryogenic environment 失效
    用于测试在环境低温环境中弯曲的试件的装置

    公开(公告)号：US5277069A

    公开(公告)日：1994-01-11

    申请号：US855313

    申请日：1992-03-23

    申请人： Michel Cussac ,  Jean F. Fuchs

    发明人： Michel Cussac ,  Jean F. Fuchs

    IPC分类号： G01N3/00 ,  G01N3/02 ,  G01N3/04 ,  G01N3/18 ,  G01N3/20

    CPC分类号： G01N3/20 ,  G01N3/18 ,  G01N2203/0023 ,  G01N2203/0228 ,  G01N2203/0447

    摘要： A device for low temperature bend-testing of a test piece is disclosed. The device of the present invention comprises fixed and movable units. The fixed unit includes a base which includes at least one substantially vertical stanchion. A tank for holding a volume of low temperature liquid, such as liquid nitrogen, is secured to the base. The movable unit includes a support and a pin. The support structure includes an arch portion and at least one projection. The test piece under test is supported by supports included in the arch portion. The pin is slidably mounted in the structure so as to be displaceable in a direction perpendicular to the test piece when supported by the supports. The device also includes means making the fixed and movable units operable together to permit the test piece to be bend-tested in the tank.

    摘要翻译： 公开了一种用于试件的低温弯曲试验的装置。 本发明的装置包括固定和可移动单元。 固定单元包括一个包括至少一个基本垂直的支柱的基座。 用于保持一定体积的低温液体如液氮的罐被固定到基座。 可移动单元包括支撑件和销。 支撑结构包括拱形部分和至少一个突出部。 被测试件由拱形部分中的支撑件支撑。 销被可滑动地安装在结构中，以便当由支撑件支撑时可在垂直于试件的方向上移动。 该装置还包括使得固定和可移动单元可一起操作的装置，以允许试件在罐中弯曲试验。