Blending : Mixing powder of the same chemical composition but different sizes
Mixing : Combining powders of different chemistries
· The blade continuously rotates and mixes the powder.
· Wet or dry mixing is generally employed.
· For wet mixing water or dry solvent is used to obtain better mixing.
· Blending and mixing is necessary for
· Addition of lubricants coats the powders and reduces die wear and lowers pressure required for pressing of powders.
· Mixing powders of different materials
· Obtaining uniform distribution of particle sizes.
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