Apparatus and method for testing wear resistant performance of material

Abstract

The invention provides an apparatus and method for testing the wear resistant performance of a material. The apparatus comprises a cover plate, a test piece vertical support, a test piece horizontal support, a water tank, a nozzle, a pressure meter, a flow meter circulation pump, and a pipeline. A test piece is installed in the water tank through the test piece vertical support and the test piecehorizontal support and is arranged on the ejection position of the nozzle. After the test piece is ejected for a period, the post treatment of the test piece to be measured is carried out by using a thermostat, an electronic scale, a high speed camera, and Origin software; and the apparatus can test and compare the wear resistant performances of one or more materials. The distance and angle between a test piece and a nozzle can be adjusted to simulate more working conditions, and the test result becomes more precise.

Description

technical field [0001] The invention relates to the field of anti-wear properties of materials, in particular to a test device and a test method for anti-wear properties of materials. Background technique [0002] Most rivers in our country contain a large amount of sand and stone, which will cause damage to the flow-passing parts of the water machine during the actual process, thus greatly reducing the efficiency and service life of the water machine. At present, the surface of the flow parts of the water machine is treated with anti-wear materials, and then the test is carried out. This method requires high technology, high test price and long cycle, which is not conducive to the application of actual production. At present, testing machines such as friction and wear testing machines are commonly used to test the wear resistance of materials, but the testing mechanism of this type of wear testing machine is different from that of sandy media in hydraulic machinery: the mai...

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Problems solved by technology

[0003] After searching, the publication number is CN 1687741A, and the name is self-circulating nozzle wear resistance test device, which discloses a self-circulation nozzle wear resistance test device, which is characterized by self-circulation, self-uniformity and quantitative sand content, but It cannot measure the wear performance of the material, it can only test the wear resistance of the nozzle, and the accurate flow through the nozzle cannot be measured

[0004] The publication number is CN 204556421U, and the name is Jet Erosion Wear Tester. It discloses an abrasion tester, which is characterized in simulating the application environment of the materials of the hydraulic turbine flow parts, and studies the abrasive behavior and process of sandy water on the surface of materials. At the same time, it can The anti-abrasion performance of the material is analyzed and studied, but it faces some problems during the test, such as the flow rate and pressure of the nozzle cannot be measured, and the water cannot be recycled during the test process, resulting in a lot of waste

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