Pipe flow type coating material erosion resistance performance experiment device and method

Abstract

The invention discloses a pipe flow type coating material erosion resistance performance experiment device and method. The pipe flow type coating material erosion resistance performance experiment device comprises a solid phase supply module, a circulation pipeline and a pipe flow type erosion module, wherein the solid phase supply module comprises a mixing box, a motor and a mixing blade; the starting end and the terminal end of the circulation pipeline are both connected with the solid phase supply module; the pipe flow type erosion module comprises an outer pipe, a test sample clamping device and a support seat. The experiment method comprises the following steps of regulating the solid phase content of multi-phase flow and the flow rate of the multi-phase flow; regulating the test sample clamping device to perform material erosion experiments; performing quality and appearance detection on the test samples subjected to erosion; and evaluating the erosion resistance performance. Thedevice and the method disclosed by the invention have the beneficial effects that the particle supply of the solid phase supply module is uniform; the material erosion environment is more similar tothe industrial practice; and the accurate experiment on the long-time erosion resistance performance of a plurality of test samples in the same batch under the conditions of different multi-phase fluid, different erosion angles and different erosion speeds can be realized.

Description

technical field [0001] The invention relates to an experimental device and method for the erosion resistance performance of coating materials, in particular to an experimental device and method for the erosion resistance performance of tube-flow coating materials. Background technique [0002] Erosion refers to a wear phenomenon in which the surface of a material is destroyed when it is impacted by flowing particles. It exists widely in industrial production. For example, in the petroleum industry, the throttle valve used in the managed pressure drilling process is eroded by the drilling fluid. The contour of the spool changes , throttling controllability attenuation, resulting in frequent valve core replacement, increased drilling costs. Spraying wear-resistant coating on the surface of the base material is an effective means to improve the erosion resistance of the base material. There are many kinds of wear-resistant coating materials, and it is very important to test an...

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Problems solved by technology

Among them, the rotary erosion test device can perform erosion experiments in the same batch for a long time, but due to the eddy current generated by the experimental fluid during the experiment, it is difficult to control the erosion angle and erosion speed; For the problem of uneven particle supply and the erosion of solid particles to the pump, the method of mixing dry solid particles at the outlet of the high-pressure pump is usually used. Since a single coating erosion test usually takes a long time, the above method cannot Recycling of solid-phase particles results in huge consumption of solid-phase particles, which is neither economical nor environmentally friendly. At the same time, if this method is used to conduct multi-sample experiments in the same batch, the erosion environment will be uneven, and the efficiency of successive experiments on a single sample will be low. Low; the centrifugal erosion experimental device needs to be calculated according to the experimental conditions for various parameters such as particle trajectory, erosion angle, and particle flow. average problem

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