http://www.sand-mill.com
2008-2-12 Internet [ views:
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Fine grinding materials--down to the micron, sub-micron, or even into the nano level--is more complex than just reducing particle size.
First, knowing and understanding the existing properties of the material to be processed is vital in order to select the right equipment. For example, hardness is one important characteristic to consider, since the type of grinding media and the amount of fine grinding relate directly to the hardness of the material to be ground.
Other important properties include:
Temperature Sensitivity
Chemical Reactivity
Abrasiveness
Toxicity
Flammability
Viscosity
Consistency of Starting Size
Product Purity
If dry processing:
Bulk Density
Moisture Content
Flowability
Second, knowing what are the critical chemical and physical requirements for the end material that one is trying to achieve is essential in selecting the correct level of grinding. A sharp particle size distribution may be important, but in many other situations, other requirements are more important, such as:
