(Silicon Nitride Ball Produced by Wintrustek)

Silicon nitride is frequently utilized as an essential part of grinding mill rotors, grinding media, and turbines. Products made of silicon nitride have about the same toughness as zirconia when compared to conventional materials, but they also have higher hardness and less wear.

The Si3N4 grinding ball's strong thermal stability makes it appropriate for use in high-temperature and cryogenic grinding processes. The ball's exceptional thermal resistance allows it to endure drastic temperature changes without losing its functionality or form. It is 60% lighter than steel, expands less thermally, and has a lower overall operating expense when compared to other grinding mediums. Due to its great hardness, it can withstand the demands of most metal powder refining and crushing processes. When high hardness, minimal contamination, and minimal abrasion are needed, this is the perfect grinding medium.

Properties

• High strength

• Excellent resistance to wear and corrosion

• Resilience to high temperatures

• Electrical insulation

• Non-magnetic properties

The main advantages of silicon nitride over steel balls:

1. Due to its 59% smaller weight than the steel ball, it significantly lessens rolling, centrifugal force, and raceway wear while the bearing runs at high speeds;

2. Since the elasticity modulus is 44% greater than that of steel, the deformation is substantially less than that of a steel ball;

3. The HRC is 78, and the hardness is greater than that of steel;

4. Small coefficient of friction, electrical insulation, non-magnetic, and more resistance to chemical corrosion than steel;

5. The material's coefficient of thermal expansion is 1/4 of that of steel, making it resistant to abrupt temperature changes;

6. RA can reach 4-6 nm, making it simple to attain a nearly flawless surface finish;

7. Strong thermal resistance, at 1050℃, the silicon nitride ceramic ball maintains its excellent strength and hardness;

8. It can operate without oil lubrication and never rust.