A particle abrasion tester, as its name suggests, is an instrument used to measure the degree of abrasion of particles under specific conditions (such as friction or impact). Unlike macroscopic wear tests, it focuses on the abrasion analysis at the microscopic particle level, which is crucial for various fields such as powder engineering, pharmaceuticals, chemical processing, and mineral processing. By simulating the various wear conditions that particles may encounter during actual use or processing, this instrument can quantify the wear resistance of particles, providing a scientific basis for material design and improvement.

Working Principle

The particle abrasion tester quantitatively evaluates the wear resistance of particles by simulating the frictional and impact forces they encounter during transportation, storage, or use. Its unique four-station design allows simultaneous testing of four samples. The testing process is as follows: First, the sample particles are placed into a dedicated abrasion cylinder (available in sizes of Φ36×300mm or Φ50×300mm). Next, parameters are set via the color touchscreen, including rotation speed (adjustable from 25 to 125 r/min), abrasion time, and vibration frequency (e.g., 1 cycle/second).  Then, the abrasion test begins: the cylinder rotates axially under motor drive, and an optional vibration mechanism (with a 0.5mm offset) can be used to simulate real-world wear conditions. Finally, the system automatically records the number of abrasion cycles (adjustable from 0 to 9999) and outputs the results via an embedded mini-printer or exports the data via a USB port for further analysis.

Operating Procedure

Before testing, ensure the instrument is properly installed and powered on, and carefully check that all components are securely connected. Prepare the material sample to be tested, which is usually in the form of round particles, ensuring the sample surface is flat and free of defects. Also, prepare the standard grinding wheel and abrasive wheel, checking that their surfaces are smooth and free of wear. Then, adjust the instrument height precisely according to the sample size and test requirements, ensuring good contact between the grinding wheel/abrasive wheel and the sample surface for even force distribution during the test.

Open the instrument control panel and select the appropriate test mode according to the test requirements. Precisely set the parameters on the panel, such as the rotation speed of the grinding wheel and abrasive wheel, the wear time, and the number of samples. Carefully place the sample in the designated position, and reconfirm that the sample surface is in close contact with the grinding wheel and abrasive wheel. Start the test. During the test, closely observe the changes in the sample and meticulously record the wear characteristics, such as the location and extent of wear.

After the test, promptly shut down the instrument, carefully remove the sample, and accurately weigh it using a clean balance. Calculate the wear rate of the sample using the relevant standard formula, and record all data, including the calculation results and test parameters, in the report for further analysis and evaluation, providing reliable data for material optimization and improvement.

Application Areas

Particulate abrasion testers have wide and important applications in many fields. In materials research, they can evaluate the wear resistance of different materials, helping researchers select suitable materials for specific applications. In lubricant research, these instruments can assess the performance of different lubricants during the wear process, aiding in the optimization of lubricant formulations and properties. In surface treatment research, they can evaluate the impact of different surface treatment technologies on material wear resistance, contributing to the optimization of surface treatment processes. In coating research, they can assess the effect of different coating materials and processes on material wear resistance, providing a basis for optimizing coating selection and application. Furthermore, particulate abrasion testers are widely used in chemical engineering, materials science, and mechanical engineering.  They are indispensable testing equipment, especially for applications involving catalysts, molecular sieves, adsorbents, and industrial active alumina particles.  Through testing, they provide insights into material wear resistance and service life under various conditions, offering crucial data for product design and optimization.

Precautions

When using related equipment for testing, a series of safety precautions must be strictly followed. First, avoid strong electromagnetic interference environments to prevent the instrument from generating abnormal measurement signals.  Sample preparation must also avoid contamination; use appropriate dispersion methods for different sample types to prevent cross-contamination and ensure accurate results. Samples must be securely mounted to prevent them from falling off or moving during testing, which could affect results and damage the equipment. Second, carefully verify all parameter settings; incorrect settings can have serious consequences. If any abnormal data is detected, check the instrument status before adjusting parameters.  Do not use non-standard accessories or attachments. Third, disconnect the power supply, clean internal components, and store the equipment properly when not in use for extended periods. Operators must wear protective equipment and avoid contact with hazardous samples. Finally, never open the equipment casing or touch moving parts during operation; high-speed rotating parts and electrically charged areas are dangerous. If any abnormality or malfunction is detected during testing, immediately stop the test and contact a professional technician for repair.

Daily Maintenance Tips

Clean the sample cell and optical window after each use to ensure that light transmittance is not affected by contamination. Regularly inspect the dispersion system nozzles and tubing to prevent blockages that could affect dispersion performance. Maintain the light source system according to the manufacturer's recommendations to ensure stable and reliable illumination. Regularly lubricate the mechanical transmission components to maintain precision of movement. Check the electrical connections for tightness to prevent poor contact. Regularly update the software system to ensure proper data processing functionality. Maintain a detailed log of all maintenance activities, recording the details of each service and any changes in the instrument's status.

In summary, the particle abrasion tester, from its working principle and operating procedures to its application fields, demonstrates its significant value and broad applicability as a professional material testing instrument. During operation, strict adherence to safety precautions is crucial for ensuring operator safety and the reliable operation of the equipment; every detail is important for accurate and stable test results, leaving no room for negligence. Furthermore, meticulous daily maintenance is indispensable, encompassing tasks such as cleaning the sample chamber, inspecting the dispersion system, and lubricating mechanical components. Each maintenance task contributes to the long-term stability and accurate performance of the equipment. Only by integrating standardized operation, safety protocols, and regular maintenance can we fully leverage the advantages of the particle abrasion tester, providing reliable data support for various fields such as material research, lubricant development, and surface treatment optimization, thus driving the continuous advancement of related industries and taking solid steps forward in exploring material properties and optimizing products.