There are several kinds of segregation phenomenon in dry powder materials powders, which are mainly in the following situations:
1, the powder and the powder mixture, the proportion of the powder is different. For example: metal powder in the addition of non metal ultrafine powder, the general mixing process, light powder is lighter, always suspended in the top of the air above the material tube or floating in the top of the subject weight, light weight difference lead to segregation;
2, there are fake particles in the powder, can not be broken. If the mixing process cannot be false particles completely open, Baotuan particles can not be into the theme of powder, lead to segregation;
3, the powder particle shape, the size difference is bigger, the effect of the mixing effect. A flake, powder mixed with irregular prismatic particles, spherical particles, particle size differences, shapes. Ordinary mixture is very difficult to mix evenly, easy to lead to segregation;
4, powder flow over a good powder: if the powder flow is particularly good, already mixed with good powder in the process of the material may lead to segregation of material.
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