Summer is coming, and it's already half a year before you know it. It's also the season for replenishing consumables in metallographic laboratories. It's customary for laboratories to conduct centralized procurement twice a year, and before each centralized procurement, you should list the items; Metallographic consumables must buy list”, There is one thing that I must buy every time, which is metallographic sandpaper.


Why is there always metallographic sandpaper on the list of metallographic consumables that must be purchased? Since that's the point, I'll discuss with my friends the reason why they must buy a plate.


The first reason is that whether it is the preparation of metallographic samples for metals, composite materials, printed circuit boards, electronic materials, or polymers, metallographic sandpaper is a necessary grinding and polishing consumable. Without metallographic sandpaper, it is absolutely impossible and cannot be replaced by other consumables. The widespread application of metallographic sandpaper and the characteristics of these materials determine that metallographic sandpaper is a must buy item.

    The second reason is that the usage is huge, and centralized procurement can save costs. Due to the fact that metallographic sandpaper is almost a large quantity of consumables in the metallographic laboratory, sporadic purchases cannot enjoy the preferential prices offered by merchants, and will also increase the frequency of procurement, resulting in an increase in direct procurement costs, which is very uneconomical. Therefore, during each centralized procurement, a large and necessary amount of metallographic sandpaper must be included in the mandatory list.

    The third reason: Metallographic sandpaper is easy to store and has a long shelf life. Metallographic sandpaper is usually packaged in paper boxes and stored in room temperature, away from light and ventilated conditions. Generally, laboratory storage cabinets or ordinary item warehouses meet storage conditions and do not require special treatment. Therefore, even if the purchased metallographic sandpaper cannot be used up in the short term, it does not matter. Normal storage conditions can be stored for three years without affecting its performance, and there is no need to worry about it becoming invalid if the goods are too many to be used up. There is no need to worry about putting it on the must buy list.


That's&quo; Metallographic consumables must buy list” There is always a reason for metallographic sandpaper in it. Due to the variety of sizes and specifications of circular, rectangular, and elongated metallographic sandpaper, circular metallographic sandpaper can be as small as 3 inches in diameter, as large as 8 inches, 10 inches, and 12 inches in diameter. Different sizes correspond to different grinding disc diameters of the polishing machine, which are used together. The grinding particles of metallographic sandpaper vary in size from coarse to fine, with P60 (260 μ m) To P4000 (5 μ m) . In addition, there are also options such as with and without back glue, with no less than a hundred specific models. Therefore, when purchasing, it is important to pay attention to the selection of models and indicate technical parameters, such as shape, size specifications, particle size designation, and whether to use back glue. This way, you can accurately purchase according to your needs. Check if your laboratory also needs centralized procurement, and don't forget to include the necessary metallographic sandpaper on your must buy list!