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粉末流动性是粉末的基本特性，是指粉末流动的难易程度。粉末流动性能与很多因素有关，
The importance of powder flowability
Powder flowability is the basic characteristic of powder, which refers to the difficulty of powder flow. The flow performance of powder is related to many factors, generally speaking, increasing the friction coefficient between particles will make powder flow difficult. Usually, spherical particles have the best flowability, while powders with irregular shapes, small sizes, and rough surfaces have poor flowability.
In addition, the flowability of powder is affected by the adhesion between particles. If water, gas, or forming agents are adsorbed on the surface of particles, the flowability of the powder will decrease. The flowability of the powder directly affects the uniformity of mixing. If the flowability is too poor, it is easy to adhere and clump during mixing, making it difficult to mix evenly. However, if the flowability is too good, it is not easy to mix evenly. If the flowability is too good, it is easy to separate from other powders, even if the mixing is uniform, it will be difficult to mix evenly during discharge During transportation, powder loading, and other processes, it is easy to cause layering. Therefore, the flowability of powder is an important performance that must be considered in the production process.
Powder flowability
Impact during processing
1. Determine whether the mixing effect achieves the desired effect
The appeal has mentioned that the quality of fluidity directly affects the uniformity of mixing. Only by finding the appropriate powder fluidity and using mechanical mixing can the ideal effect be achieved;
2. Effects during storage, transportation, or vibration
The flowability is too poor to effectively flow out of the hopper, which can easily lead to agglomeration and agglomeration during transportation and vibration. If the mixed powder has good flowability, segregation and layering will occur during discharge and vibration;
3. Can an accurate or constant feeding amount be achieved during filling or packaging
The flowability of powder directly affects the accuracy of filling or packaging. Only by knowing the flowability of powder can the production process be effectively controlled.
