Jet type gas/solid erosion test device

Abstract

The invention discloses a jet type gas/solid erosion test device, which is composed of an air compressor, a pressure gauge, a pressure control valve, a control box, a dust collector, a spray gun, a nozzle, a sample turntable, a sand storage room, a frequency conversion motor, The air compressor is connected with the spray gun through the gas delivery pipe, the sand delivery pipe and the body. The air compressor is connected with the spray gun. The gas delivery pipe is equipped with a pressure gauge and a pressure control valve. There is a nozzle at the lower end of the spray gun. The sample turntable is located under the nozzle. Driven by a frequency conversion motor, the sand storage chamber is connected to the spray gun through the sand delivery pipe. The spray gun and the sample turntable are located in the closed body, and the sand storage chamber is located at the bottom of the body. Air compressor, pressure gauge, pressure control valve, control box , The dust collector and the frequency conversion motor are located outside the body, and the dust collector is used for dust removal inside the body; the spraying angle of the spray gun is 10° to 90°; the invention makes the sample be eroded by the gas/solid two-phase flow at the same time; the invention is in the working process The medium flow field is stable, and the impact angle can be precisely controlled.

Description

technical field [0001] The invention relates to a jet type gas / solid erosion test device. Background technique [0002] The starting point of erosion test research is to analyze the erosion resistance and erosion mechanism of different materials, and to research and develop erosion-resistant materials. Various research institutions and laboratories at home and abroad have designed many corresponding erosion test equipment. At present, there are two main types of airflow erosion equipment: the first is the sandblasting erosion testing machine, which is mainly used to evaluate the erosion and wear properties of various materials. The most representative one is the erosion testing machine designed in the ASTM-G76 standard of the American Society for Testing and Materials. Its working principle is to use high-pressure airflow to spray the erosion particles onto the surface of the sample through a nozzle of a certain length, so that the test sample produces Erosion, various tes...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of jet type gas / solid erosion test device, this jet type gas / solid erosion test device is on the basis of industrial sandblasting machine, in conjunction with ASTM-G76-83 standard and test requirement, to The upgrade and transformation of the existing erosion test device, the present invention overcomes the disadvantages that the flow field is not stable enough and the impact angle cannot be accurately controlled during use

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