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fine aluminum powder

You should make sure you are purchasing the best product available whether you are working with fine aluminum powder in a paint or pigment or searching for a powder that may be used as an explosive. This page will discuss several types of powders, their applications, and compaction techniques.

Methods for compaction

Fine aluminum powder has been compacted using a variety of techniques. The doctor blade/forward-rotating roller combination offers a promising mix of low compaction level and high density, making it the most promising. The combination has a variety of drawbacks, chief among which are poor levels of compaction and disruption of emerging layers.

Three methods were looked at in this study. The smallest amount of powder was provided by the doctor blade, whereas the largest bulk density and highest surface quality were produced by the forward-rotating roller. Additionally, during the compacting process, the copper flake in the mixture acts as a sliding lubricant.

The greatest pre-deposited layer in the doctor blade study measured 0.2mm. Despite not achieving the ideal layer thickness, the surface quality was excellent. This blade, which may be seen as an early form of the compaction method, was used to spread the powder.

The HVC process, which offers a mechanical mechanism of disturbing the oxide coating, is another technique utilized for compaction of fine aluminum powder. The ductile aluminum powder was significantly distorted by this technique, nevertheless. The greatest significant particle-to-particle interaction is produced by the HVC technique, despite the fact that it is not commercially viable.

A combination of copper flakes and aluminum powder was compacted using a doctor blade. To avoid galling and seizing during compacting, copper flakes were utilized. The powder was then sintered using a technique created for this research. The copper flake promotes the diffusion of the alloy element while assisting in reducing friction forces during compacting.

The powder's capacity to endure handling before sintering was found to be well predicted by the ideal green density. Additionally, the particle-to-particle interaction enhanced the diffusion channels. On three different compositions, the forward-rotating roller and the doctor blade were put to the test. The sample that performed the best overall had a compaction velocity of 7.9 ms-1.

The forward-rotating roller produced the best bulk density while the doctor blade produced the finest surface quality. The most effective technique for compacting fine aluminum powder was also demonstrated to be the combination of a blade and a forward-rotating roller.

Why choose TIJO Metal Materials fine aluminum powder?

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