The Influence of Metal 3D Printing Powder Feeding Speed on Ultrasonic Vibrating Screen

(The Influence of Metal 3D Printing Powder Feeding Speed on Ultrasonic Vibrating Screen)

Ultrasonic vibrating screen is one of the most important equipment for 3D
printing powder screening. Its simple structure and stable work are widely used
in powder-related industries. For the ultrasonic vibrating screen, the most
important thing is the screening efficiency. Improving the screening efficiency
can greatly increase the yield rate and reduce the fluctuation between powder
batches. There are many factors that affect the screening efficiency. This
article takes die steel as an example to analyze the influence of the feed rate
on the efficiency of ultrasonic vibration screening.

With the increase of the feed rate, the sieving completion time gradually
decreases, the weight of the +105μm particle size segment continues to increase,
and the particle size of the 45-105μm segment continues to decrease. Although
the feed rate was increased, the intensity of the screen vibration did not
increase, and the height and intensity of the material being thrown remained
unchanged. The increase of the feeding speed makes the feeding amount increase,
but when the material exceeds a certain amount, the material layer is too thick,
the material particles are not easy to loosen, and the sieve holes are blocked,
and the particles on the upper part of the material layer are difficult to pass
through the sieve holes. Therefore, the particle size of +150μm The weight of
the segment has increased significantly. With the increase of the feed rate, the
weight of the 45-105μm, 15-53μm and -25μm particle size segments decreased. As
the material passing through the upper screen is reduced, the weight of the
corresponding remaining particle size segments will also be correspondingly
reduced.

As the feed rate increases, the powder particle size D10 value continues to
increase, and the D90 value continues to decrease. When the frequency exceeds a
certain value, both D10 and D90 have exceeded the range of qualified product
particle size requirements. The increase of the feed rate increases the
probability of collision between materials. The agglomerated particles are
knocked apart into small particles. The particles are easier to loosen, and the
large and small particles are more likely to be stratified. However, the
increase in the feed rate will also cause the screen to block the screen. The
material with larger particles is blocked by the upper screen, and the particle
size of the particles passing through the screen becomes finer.

In summary, when the feed rate is small, the screening time is longer and the
screening efficiency is low. As the feed rate increases, the time to complete
the screening gradually decreases. However, when the electric feeding speed
exceeds a certain value, the particle size values D10 and D90 both exceed the
specified range value.

About 3dprintingpassion

3dprintingpassion is a trusted global chemical material supplier & manufacturer with
over 12 years experience in providing super high-quality chemicals and
Nanomaterials. The company export to many countries, such as USA, Canada,
Europe, UAE, South Africa, Tanzania,
Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech
Republic,Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand,
Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a
leading nanotechnology development manufacturer, 3dprintingpassion dominates the market.
Our professional work team provides perfect solutions to help improve the
efficiency of various industries, create value, and easily cope with various
challenges. If you are looking for metal 3D printing Powder, please send an email to:
sales2@nanotrun.com

(The Influence of Metal 3D Printing Powder Feeding Speed on Ultrasonic Vibrating Screen)