Anti-corrosion fatigue performance testing device based on acoustic emission
A technology of fatigue performance testing and acoustic emission, which is applied to measuring devices, using acoustic wave emission technology for material analysis, and using stable tension/pressure to test the strength of materials, etc., can solve the problems of low accuracy and achieve high accuracy, Avoid the effect of being corroded
Active Publication Date: 2021-05-04
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
For this reason, the present invention proposes a kind of anti-corrosion fatigue performance testing device based on acoustic emission, in order to solve the problem that the accuracy of traditional anti-metal corrosion fatigue test device is low
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0030]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description...
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The invention discloses an anti-corrosion fatigue performance testing device based on acoustic emission. The device comprises: a main machine which comprises a support and a stretching mechanism disposed on the support; a clamping mechanism which comprises a first clamp and a second clamp opposite to the first clamp, wherein the first clamp and the second clamp are both connected with the stretching mechanism, the stretching mechanism is used for driving the first clamp and the second clamp to be close to each other or away from each other, the first clamp is provided with a containing cavity used for containing a corrosion body, the containing cavity is provided with an opening formed in the end, close to the second clamp, of the first clamp, and the test piece can be placed in the containing cavity when the first clamp fixes the test piece; a strain measurement mechanism which comprises a first acoustic emission sensor, a second acoustic emission sensor and an acoustic emission instrument, wherein the first acoustic emission sensor and the second acoustic emission sensor are both in communication connection with the acoustic emission instrument, and the first acoustic emission sensor and the second acoustic emission sensor are arranged on the test piece at intervals in the stretching direction of the test piece; and a protection assembly used for being connected with the test piece.
Description
technical field [0001] The invention relates to the technical field of anti-corrosion testing, in particular to an anti-corrosion fatigue performance testing device based on acoustic emission. Background technique [0002] The power generation efficiency of a Concentrating solar thermal power (CSP) system is affected by the performance of the heat transfer and storage medium. Compared with the currently commonly used heat transfer and heat storage media (water vapor, molten salt, and heat transfer oil), aluminum-silicon alloys have the advantages of high heat storage capacity, good thermal conductivity, and excellent oxidation resistance, and are considered to be a new generation alternative material. In practical applications, the CSP system starts and stops periodically due to the alternation of day and night, causing large dynamic load fluctuations, resulting in fatigue damage to the heat exchange tubes. At the same time, the molten aluminum-silicon alloy on both sides ...
Claims
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IPC IPC(8): G01N3/08G01N3/10G01N3/06G01N29/14
CPCG01N3/08G01N3/10G01N3/06G01N29/14G01N2203/0017G01N2203/0044G01N2203/005G01N2203/0066G01N2203/0073G01N2203/024G01N2203/0658Y02E10/40G01N3/32G01N2203/0005G01N17/006G01N2291/0258G01N29/4427G01N2291/0234G01N1/44G01N2203/04
Inventor 李微黄煌黄伟颖李聪陈荐何建军彭卓寅陈建林任延杰
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY