With the continuous development of nanotechnology, nano metal ultrafine powders have been increasingly widely used. However, during storage and transportation, nano metal ultrafine powders also face some problems, such as poor thermal stability and easy oxidation and heating. Therefore, we must take some measures to ensure the safe storage and transportation of nano metal ultrafine powders.

In order to ensure the stability of nano metal ultrafine powders, effective passivation measures must be taken during storage and transportation. Normally, we can achieve passivation treatment by inflating inert gas. Specifically, we can slowly fill the device with inert gas containing a small amount of air (about 1%) to maintain a stable oxide film thickness on the powder surface. During the inflation process, the selection of inflation speed, inflation amount, and passivation time is also crucial. It is necessary to flexibly adjust according to different powder characteristics to achieve the best passivation effect.

At the same time, we also need to pay attention to some details during the storage and transportation of nano metal ultrafine powders. For example, in storage containers, they must be kept sealed and placed in a dark, low humidity, well ventilated area to avoid moisture, heat, and direct sunlight. During transportation, it is necessary to strengthen vibration protection to prevent powder agglomeration caused by vibration, which can affect its performance.

In summary, the storage and transportation of nano metal ultrafine powders is a complex and rigorous process that requires us to fully understand the characteristics of nano metal ultrafine powders and take corresponding safety measures to ensure the safe storage and transportation of nano metal ultrafine powders.