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Method for multifunctional pipe inspection and material testing, and apparatus thereof

A material testing and multi-functional technology, which is applied in the direction of measuring devices, analyzing materials, and using stable tension/pressure to test the strength of materials, etc. It can solve the problems that are difficult to test the tensile and compressive properties of gradient materials, and achieve fast and accurate testing. , Eliminate measurement error, reduce the effect of measurement error

Inactive Publication Date: 2012-04-11
HEFEI HUAYU RUBBER EQUIP
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  • Claims
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Problems solved by technology

Therefore, it is difficult for a universal testing machine to test the tensile and compressive properties of gradient materials

Method used

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  • Method for multifunctional pipe inspection and material testing, and apparatus thereof
  • Method for multifunctional pipe inspection and material testing, and apparatus thereof
  • Method for multifunctional pipe inspection and material testing, and apparatus thereof

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Embodiment Construction

[0043] Equal to 8 (n=4) as embodiment with the block number 2n of concentric fan-shaped plate 11, as attached figure 1 , 2 3. Further explain the present invention: the multifunctional pipe inspection and material testing device described in this embodiment can respectively inspect four kinds of PE pipes and material properties with outer diameters of 110, 200, 315 and 500 mm.

[0044] Four kinds of PE pipes with outer diameters of 110, 200, 315 and 500mm are compared with the PE pipe specification and size table to obtain the average wall thickness respectively. On a plane of a steel disc with a thickness of 60mm and a diameter of 550mm, 4 concentric annular grooves 15 are processed, and the dimensions of each concentric annular groove 15 are as follows:

[0045] Groove 1: outer diameter 112mm, inner diameter 88mm, depth 35mm;

[0046]Groove 2: outer diameter 202mm, inner diameter 162mm, depth 35mm;

[0047] Groove 3: outer diameter 318mm, inner diameter 256mm, depth 35mm;...

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Abstract

The present invention discloses a method for multifunctional pipe inspection and material testing, and an apparatus thereof. According to the present invention, a round inspection part chuck is provided with a plurality of concentric circular ditch grooves with different depths and widths, wherein the round inspection part chuck is formed by a plurality of concentric fan-shaped plates; a pipe requiring inspection is cut into a circular specimen or a circular specimen of a pipe requiring inspection is prepared; the circular specimen is placed in the concentric circular ditch groove; pressure of a hydraulic station is controlled to drive a piston to move; the concentric fan-shaped plates are driven to perform synchronous eccentric movements or centripetal movements so as to radially apply the pressure on the circular specimen; according to the pressure and the deformation amount, a control system inspects internal pressure bearing performance and external pressure external pressure of the pipe, or tests tensile property and compression resistance of the material. The method and the apparatus of the present invention can be applicable for testing of various properties of the composite materials and the pipes, and various properties of the metal materials and the building materials. The apparatus of the present invention further has advantages of a machine with a plurality of uses, convenient operation, fast and accurate testing, on-site use and the like.

Description

technical field [0001] The invention relates to a method and device for pipe inspection and material experiment, in particular to a method and device for multifunctional pipe inspection and material experiment for new materials such as polymer materials, composite materials, and gradient materials, and belongs to the technical field of experimental mechanics devices . Background technique [0002] At present, the internal pressure test of pipes mostly adopts the hydraulic method (see GB / T6111-2003 Test method for internal pressure resistance of thermoplastic pipes for fluid transportation). Pipes of different specifications and materials need to be equipped with different heads; The higher the pressure, the more expensive the head; during the test, both ends of the pipe are restrained by the head, which changes the stress state of the pipe and affects the accuracy of the test results; in order to eliminate the influence of the head, it is necessary to lengthen the pipe sampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10G01N3/02
Inventor 王健军陈志敏盛宏玉张高峰吴坤
Owner HEFEI HUAYU RUBBER EQUIP
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