Boron Nitride Is Also Widely Used in The Industrial Machinery Industry.

Hexagonal boron nitride (h-BN) is widely used in industrial machinery due to its unique properties such as high-temperature stability, excellent self-lubrication, chemical inertness, high thermal conductivity and electrical insulation. The following are its main application scenarios and technical advantages in industrial machinery:
1. High-temperature solid lubricant
Application scenarios: (1) High-temperature bearings and guides: In high-temperature environments (above 800°C) such as metallurgical furnaces, glass melting furnaces, and ceramic sintering equipment, h-BN is used as a lubricating coating or powder on bearings, guides, gears and other friction components to prevent traditional lubricating oils from carbonizing and failing at high temperatures. (2) Metal forming and mold lubrication: In stamping, extrusion or forging processes, h-BN is sprayed on the surface of molds to reduce the adhesion between metal parts and molds and extend the service life of molds.
Advantages: (1) No need for a liquid carrier and can be used directly at high temperatures. (2) Low friction coefficient (0.15-0.25), does not oxidize and does not produce harmful gases.
Examples: Coating on the guide rollers of steel continuous casting machines to reduce the friction loss between the steel billet and the guide rollers; lubrication of glass forming molds to prevent the adhesion of molten glass.
2. Wear-resistant and corrosion-resistant coating
Application scenarios: (1) Chemical equipment protection: h-BN is coated on the surfaces of components such as reactors, pipes, and valves that come into contact with strong acids, strong bases, or molten salts to prevent chemical corrosion. (2) High-temperature component oxidation resistance: h-BN coatings are applied to the surfaces of high-temperature metal components such as gas turbine blades and internal combustion engine pistons to inhibit oxidation and thermal fatigue.
Advantages: (1) Extremely strong chemical inertness, superior corrosion resistance compared to traditional coatings (such as Teflon). (2) Maintains structural stability at high temperatures, preventing coating peeling.
Examples: Anti-sulfuric acid corrosion coating for centrifugal pumps in the petrochemical industry; anti-oxidation protection for high-temperature pipes in power plant boilers.
3. High thermal conductivity insulating material
Application scenarios: (1) Heat dissipation components: In equipment such as motors, frequency converters, and transformers, h-BN-filled composite materials are used as heat dissipation gaskets or substrates to quickly dissipate heat and maintain electrical insulation. (2) Thermal management structures: h-BN is combined with ceramic fibers to form the insulation layer of high-temperature furnaces, providing both insulation and directional heat conduction functions.
Advantages: (1) Thermal conductivity as high as 400 W/m·K (comparable to copper), and excellent insulation performance (breakdown voltage > 35 kV/mm). (2) Lightweight, suitable for industrial equipment sensitive to weight.
Examples: Heat dissipation modules for heavy mining machinery motors; insulating heat dissipation substrates for induction heating equipment.
4. Composite material reinforcement
Application scenarios: (1) Wear-resistant components: h-BN particles are added to aluminum alloys, ceramics or polymer matrices to manufacture wear-resistant mechanical components such as bearings, seals, and piston rings. (2) Lightweight structures: h-BN-reinforced composites are used in industrial robot joints, mechanical arms and other components to reduce weight and improve high-temperature resistance.
Advantages: (1) Simultaneously enhance the mechanical strength, wear resistance and thermal stability of the material. (2) Reduce frictional heat generation and extend the service life of components.
Examples: h-BN ceramic coating on the screw of an injection molding machine to reduce the adhesion of plastic melt; wear-resistant composite material joints for automated production line mechanical arms.
5. Special process auxiliary materials
Application scenarios: (1) Release agent: In metal casting or plastic injection molding, h-BN powder is used as a release agent to ensure a smooth surface of the formed parts and easy demolding. (2) 3D printing additive: h-BN is added to metal or ceramic 3D printing to improve the high-temperature resistance and surface finish of printed parts.
Advantages: (1) Does not decompose at high temperatures, avoiding contamination of formed parts. (2) Improves the forming accuracy and performance of complex structural parts.
Examples: h-BN release agent for casting engine blocks in automobiles; 3D printed composite materials for high-temperature components in aerospace.
Future trends: (1) Green manufacturing: h-BN lubricants replace traditional sulfur and phosphorus-containing additives to reduce environmental pollution. (2) Intelligent integration: Combined with sensors, real-time monitoring of coating wear status is achieved to realize predictive maintenance.

Shengyang New Material Co., Ltd. is committed to the production of boron nitride and boron nitride processed products, and can customize various boron nitride insulating ceramic parts according to customer needs. Contact us if necessary.
Tel:+8618560961205
Email:sales@zbsyxc.com