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Views: 0 Author: Site Editor Publish Time: 2025-01-23 Origin: Site
| Before using the uVicky-1 Micro Vickers Hardness Tester, please ensure that you have understood the relevant safety precautions. Next, operate according to the following steps: Preparation Work: 1、First, select a stable and vibration - free workbench to place the hardness tester. Place the sample to be tested on the stage and ensure that the surface of the sample is flat and closely attached to the stage. If the surface of the sample is uneven, it may affect the accuracy of the test results. At the same time, prepare necessary tools such as tweezers and alcohol swabs for cleaning the sample and adjusting the hardness tester. 2、Power - on and Calibration: Connect the power supply of the hardness tester and press the power - on button. After waiting for the instrument to complete the self - check, perform the calibration operation. This step is very crucial as it can ensure the measurement accuracy of the hardness tester. Usually, the calibration process requires the use of a standard hardness block, and the calibration steps are carried out in accordance with the operation manual of the instrument. During the calibration process, carefully observe the readings of the instrument to ensure that the calibration is correct.3、Select Test Parameters: According to the material and hardness range of the sample, select appropriate test parameters. This includes the load force, loading time, etc. Generally speaking, harder materials require a larger load force, while softer materials require a smaller load force. The loading time will also affect the test results and needs to be adjusted according to the actual situation. When selecting parameters, you can refer to relevant material hardness standards and the instrument's operation manual. Focus and Positioning: Observe the sample through the microscope and adjust the focal length to make the surface of the sample clearly visible. Then, use the moving device of the stage to position the test point at the appropriate position on the sample. When positioning, try to avoid choosing areas with defects or impurities on the sample surface to ensure the reliability of the test results. 4、Perform the Test: After confirming that all parameters are set correctly, press the test button. The hardness tester will automatically apply the load force and unload it after the set time. During the test process, keep the hardness tester and the sample stable and avoid external interference. After the test is completed, observe the indentation through the microscope and use the built - in measurement function of the instrument to measure the diagonal length of the indentation. Calculate the Hardness Value: According to the measured diagonal length of the indentation, use the Vickers hardness calculation formula to calculate the hardness value of the sample. During the calculation process, pay attention to the conversion of units and the correct use of the formula. If you have any questions about the calculation results, you can refer to the instrument's operation manual or consult professionals. Record and Clean - up: Record the test results, including information such as the name of the sample, the position of the test point, and the hardness value. Then, clean the sample and the stage and turn off the power supply of the hardness tester. During the cleaning process, use clean alcohol swabs to wipe the surface of the sample and the hardness tester to avoid the impact of residual impurities on the next test. |
