Many industrial equipment such as hydraulic machinery and mining equipment work under ultra-high pressure. The pressure resistance of rolling balls directly determines equipment safety. Silicon nitride balls have excellent high-pressure resistance, which is inseparable from its internal crystal structure.
Silicon nitride forms a stable hexagonal crystal structure after high-temperature sintering. The interlaced crystal grains support each other to disperse external pressure. Under static high pressure, the internal stress is evenly distributed without local concentration.
High bulk density improves compression resistance. Hot pressed silicon nitride balls have a density close to the theoretical value, without internal pores. Dense structure avoids collapse and deformation under high pressure.
Compressive strength data proves excellent performance. The static compressive strength of qualified silicon nitride balls exceeds 2500MPa, which is 3 times higher than bearing steel balls. It can withstand extreme instantaneous pressure impact.
No plastic deformation is the core advantage. Metal balls will produce irreversible plastic deformation under ultra-high pressure. Silicon nitride balls maintain elastic deformation and quickly recover their original shape after pressure relief.
High-pressure resistant silicon nitride balls are widely used in high-pressure hydraulic pumps, mining bearing parts and deep-sea detection equipment, providing safe guarantee for high-pressure industrial equipment.
