Principle and Using of Fully Automatic Microhardness Tester

The iqualitrol fully automatic microhardness tester HYHVS-1000Z is an instrument used to measure the hardness of materials. It uses an optical microscope and automatic control technology to achieve high-precision measurement of the hardness of materials.

The following is a detailed introduction to the principle and use of the fully automatic microhardness tester:

Principle:

The principle of the fully automatic microhardness tester is based on the microhardness measurement method, that is, by applying a certain load on the surface of the material and then observing the size of the indentation to determine the hardness of the material.

The main principle includes the following steps:

1. Loading: Place the test sample on the hardness tester, and apply a certain force to the sample surface through the automatic loading system.

2. Indentation observation: Observe the indentation formed by the indenter on the sample surface through an optical microscope, usually using a magnification of 10 times or 20 times for observation.

3. Indentation measurement: Use the microscope's scale or image processing software to measure and record the diagonal length of the indentation or the diameter of the indentation.

4. Hardness calculation: According to the hardness measurement method adopted (such as Vickers hardness, Brinell hardness, etc.), compare the measured indentation size with the relevant hardness table or formula to calculate the hardness value of the material.

How to use:

The following steps are required to measure the hardness using a fully automatic microhardness tester:

1. Calibration: Before measurement, the hardness tester needs to be calibrated to ensure the accuracy of its measurement results. Standard samples are usually used for calibration, and the instrument parameters are adjusted according to the hardness value of the standard sample.

2. Prepare samples: Select suitable samples according to the characteristics of the material to be measured, and perform necessary surface treatments such as polishing and cleaning to ensure the accuracy of the measurement.

3. Place the sample: Place the sample on the test bench of the hardness tester and fix it.

4. Set parameters: Select the appropriate loading force and holding time as needed, and set relevant parameters such as magnification, loading speed, etc.

5. Perform measurement: Start the measurement program through the control panel or software interface, and the instrument will automatically complete the loading, observation, measurement and calculation process.

6. Record the results: After the measurement is completed, the measurement results can be recorded and necessary data analysis and processing can be performed.

The use of the fully automatic microhardness tester is relatively simple. Through automatic control, the accuracy and efficiency of the measurement can be improved. It is suitable for measuring the hardness of various materials, such as metals, ceramics, composite materials, etc. It has a wide range of applications in material research, quality control, engineering testing and other fields.