Tension spring type small particle impact experiment device

A technology of tiny particles and impact test, applied in the field of erosion and wear, can solve problems such as research on unfavorable erosion mechanism, and achieve the effect of easy popularization, easy experimentation and low cost

Active Publication Date: 2019-01-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0003] In China, the erosion experiment was carried out earlier and progressed faster, such as the China University of Petroleum, the Institute of Metal Research, Chinese Academy of Sciences, etc., but the experimental devices designed

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  • Tension spring type small particle impact experiment device
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  • Tension spring type small particle impact experiment device

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The terms "first", "second", and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than thos...

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Abstract

The invention relates to an experiment device, in particular to a tension spring type small particle impact experiment device. The tension spring type small particle impact experiment device belongs to the technical field of erosion abrasion. A single particle can be emitted to impact the surface of a target body, and a high-speed camera is used for capturing the dynamic process of the particle; the impact speed, the impact angle and the azimuth angle of the particle can be effectively regulated to realize a controllable research variable; and finally, the influence of impact parameters, including the impact speed, the impact angle, the azimuth angle and the like, on particle rebounding behaviors and washout pits can be obtained. An experiment discovers that the impact angle and the azimuth angle of a hard angle form particle determine the rotation direction of particle rebounding after impact is carried out, wherein the rotation direction comprises front rotation and rear rotation, and different rotation directions correspond to different erosion abrasion mechanisms; the impact speed of the hard angle type particle determines the size of the pit left on the surface of the target body after impact is carried out, the speed is in a direct proportion to the size of the pit and caused erosion abrasion, but the impact speed hardly influences the outline shape of the pit.

Description

technical field [0001] The invention relates to an experimental device, in particular to an extension spring type tiny particle impact experimental device, which belongs to the technical field of erosion and wear. Background technique [0002] Erosion wear refers to the phenomenon or process of material removal caused by the collision of tiny particles in a liquid flow or air flow on a material. As a common wear phenomenon, it widely exists in various industrial fields, and has become one of the important reasons for material damage or equipment failure. The biggest feature of erosion wear is that it has a long incubation period, that is, when the particles hit the target, the material will not be lost at the beginning, and the erosion wear will occur after a period of accumulation. The study of the impact process of a single horn-shaped particle is helpful to understand the mechanism of material removal in the process of erosion and wear. [0003] In China, the erosion ex...

Claims

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Application Information

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IPC IPC(8): G01N3/56
CPCG01N3/56G01N2203/0005G01N2203/0682
Inventor 董祥伟李增亮杜明超孙召成冯龙
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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