Screening does not directly affect the PDI of the particles, but if the screening effect is not good, the powder in the finished product is more, and when it reaches the user, it is equivalent to reducing the PDI of the pellet feed, resulting in waste of feed. At present, the commonly used grading screens mainly include vibrating grading screens and rotary grading screens, and the effects of both are good. The vibrating grading screen should adjust the amplitude of the screen according to the nature and flow rate of the material. The grading screen should select a reasonable screen size and control the appropriate layer thickness to achieve the best effect. The grading effect of both should be controlled. 98% or more.
Plastic spectrophotometer,Handheld spectrophotometer,Automobile spectrophotometer
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