Selection of operating environment for metallographic microscopes
A metallographic microscope is a precision optical instrument with a complex structure. Care must be taken when using or storing it, and it cannot be careless. When conducting metallographic examination, the operation must be skillful, accurate and meticulous.
The optical system is prone to mold and fogging. In severe cases, the optical system may not work. Therefore, special attention must be paid to preventing mold and fogging. In addition, due to the improper mechanical structure of the metallographic microscope, it is easy to malfunction and the maintenance is also complicated. If not handled properly, the malfunction will expand, the accuracy will decrease, and the performance will significantly deteriorate.
Metallography, like other optical instruments, is very sensitive to harmful factors such as moisture, high temperature, dust, corrosive gases, and vibration. Therefore, the requirements for the use environment are stricter. Specifically, the studio where metallographic examination is performed should be wide, clean, and away from the earthquake source.
Moisture, high temperatures, and dust are particularly suitable for mold "spores". Therefore, the metallographic microscope studio should be located on the commercial floor of a building with large windows, good ventilation, a dry environment, and dust-proofing as much as possible. Units that have the conditions should install constant temperature and humidity air conditioning equipment.
In order to protect the microscope from sunlight exposure and irradiation, curtains were hung on the indoor windows.
The ceiling and surrounding walls of the metallographic room should be painted with paint. The floor should be made of terrazzo or inlaid with bakelite, and should be waxed frequently.
Do not place corrosive reagents, such as acids, alkalis, hydrogen sulfide and other chemicals indoors. For this reason, the metallographic examination room should be separated from the sample preparation rooms.
The table on which the microscope is placed must be firm and reliable, the surface should be smooth and smooth, and the height of the table should be suitable for metallographic workers to work in a comfortable posture for a long time.
In short, departments that use microscopes should make appropriate arrangements according to specific circumstances. If the above conditions cannot be met for a while, they should also adapt to local conditions, make the best use of the current situation, and gradually change the color and actively create a good environment suitable for metallographic inspection work to fully Give full play to the performance and precision indicators of metallographic microscopes and extend their service life.
