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Summary of the crushing method in the production of reduced iron powder

Reduced iron powder production process - summary of crushing methods

Mechanical pulverization is the mechanical pulverization of a bulk metal, alloy or compound into a powder by crushing, crushing and grinding. According to the final degree of material crushing, it can be divided into two types: coarse crushing and fine crushing. The main functions of crushing are crushing, rolling and smashing; the main crushing is mainly hammer grinding; the mechanical crushing of the tail in crushing and grinding has ball mill and rod. Grinding, etc.
Practice has proved that the primary reduced iron powder is mostly smashed; the secondary reduced iron powder is mostly pulverized by ball milling.

 

The secondary agglomerate of reduced iron powder is usually crushed by ball milling. When grinding, there are four kinds of forces acting on the granular material: impact, abrasion, shearing and compression; therefore, ball milling has the following advantages and disadvantages.

The role of grinding:

1, reducing or increasing the particle size of the reduced iron powder;
2, alloying; solid mixing;
3. Improve, transform or change the properties of the material.

Disadvantages of mechanical grinding

       In most cases, the task of grinding is to make the particle size of the powder thin. However, the ground metal powder particles have work hardening, irregularity, and deterioration of fluidity and agglomeration.

 

Summary of the crushing method in the production of reduced iron powder