How to use a metallographic microscope
1. According to the magnification requirements required for observing the sample, select the objective lens and eyepiece correctly, and install them on the objective lens holder and the eyepiece tube of the metallographic microscope respectively.
2. Adjust the center of the stage to align with the center of the objective lens, and place the prepared sample on the center of the stage. It should be noted that the observation surface needs to face the objective lens of the metallographic microscope. If you are using an inverted metallographic microscope, you need The observation surface of the sample should face down, otherwise, if it is an upright metallurgical microscope, the observation surface of the sample needs to be upward.
3. Insert the power plug of the metallographic microscope into the 220V power socket, and turn on the light source switch to make the bulb shine.
4. Turn the coarse focusing handwheel of the metallographic microscope to lower the stage so that the observation surface of the sample is close to the objective lens; then reversely turn the coarse focus knob to raise the stage so that a blurred image can be seen in the eyepiece; Finally, turn the fine-tuning handwheel until the image is clearest.
5. Properly adjust the aperture diaphragm and field diaphragm, and select the appropriate filter lens to obtain an ideal object image.
6. Move the stage back and forth, left and right, observe different parts of the sample, in order to comprehensively analyze and find a representative microstructure.
7. After observation, adjust the light source to the darkest place and turn off the power to prolong the service life of the bulb.
8. After the experiment, the objective lens and eyepiece of the metallographic microscope should be carefully removed, and check whether there is any pollution such as dust. If there is any pollution, it should be wiped clean with lens tissue in time, and then stored in a desiccator to prevent Damp and mildew. The microscope host should also be covered with a dust cover at all times.
