Specimen impacting angle adjusting component and method of rotary erosion wear test device

Abstract

The invention provides a specimen impacting angle adjusting component and method of a rotary erosion wear test device. The specimen impacting angle adjusting component comprises a specimen and a cylindrical specimen protection device, a flange plate is arranged at the cylindrical upper end of the specimen protection device, a rectangular groove is formed in the bottom of the specimen protection device, an adjusting hole and a threaded hole are formed in a slurry tank cover plate, the specimen protection device penetrates the adjusting hole and is mounted on one side of the slurry tank cover plate by a fastening screw, an angular scale is arranged on the slurry tank cover plate, and an angular pointer is arranged on the flange plate. The specimen impacting angle adjusting component has the advantages that an impacting angle is easy to control and high in precision, and the component is simple in structure and convenient to operate. The component can conveniently change specimen impacting angles of the rotary erosion wear test device to study erosion wear resistance of a material under different impacting angles, the specimen impacting angle adjusting component determines specimen impacting angles according to the corresponding relation among the angular pointer and scale lines on the angular scale, and other angular measuring tools are omitted.

Description

Technical field: [0001] The invention belongs to the field of erosion and wear testing, and in particular relates to a sample impact angle adjustment component and method of a rotary erosion and wear testing device. Background technique: [0002] Liquid-solid two-phase flow erosion and wear phenomenon commonly exists in metallurgy, chemical industry, mining, hydropower and other industries, and is an important cause of rapid damage to various slurry pumps, valves, pipelines and other flow-passing components. There are many factors affecting the scouring wear of liquid-solid two-phase flow, such as the impact angle of the fluid, flow velocity, solid particle characteristics (shape, particle size, hardness and content, etc.), the acid-base salt concentration of the fluid medium, the temperature of the fluid medium, the erosion properties of abrasive materials, etc. Scholars at home and abroad have conducted a large number of erosion and wear test laws and mechanisms on these ...

AI Technical Summary

Problems solved by technology

[0003] The rotating disk test device is usually installed on the disk with the test sample. The sample and the disk rotate at high speed, and the erosion angle is not easy to adjust.

Chinese patent ZL201210309188.9, the title of the invention is "Test Components of Rotary Liquid-Solid Two-phase Flow Erosion Wear Test Device" is to install eight test pieces in the rectangular grooves of the fastening plates of the respective test pieces, which can be simultaneously Test the specimens under seven different impact angles of 0°, 15°, 30°, 45°, 0°, 60°, 75°, and 90°, and reduce the calculation error of the actual impact velocity and impact angle, but the test The sample fastening plate is relatively complex, and the processing requirements for the sample groove are high. If a problem occurs in one groove, the entire fastening plate will not be able to be used normally; Test" (Corrosion Science and Protection Technology, 1993, 5 (4): 286-290) adopts the method of rotating a disc with a hollow transmission shaft, and a wedge-shaped sample is installed on the disc to expose an eroded plane. The temperature can be controlled, and the electrochemical test in the process of erosion and wear can be carried out, but it is not stated whether the erosion angle of the sample can be adjusted; the literature "Research on Erosion Corrosion and Wear of Liquid-Solid Two-phase Flow of Stainless Steel and Carbon Steel" (Materials Engineering, 2004, 11:37-40) uses a hollow drive shaft to drive the disk and the sample to rotate, and the cylindrical sample (cut out an eroded plane) is installed on the disk, exposing the eroded plane, and the sample Impact angles are 0°, 15°, 30°, 45°, 60°

Images