Hydrogen energy storage and transportation: liquid nitrogen is used for pre-cooling before hydrogen liquefaction.Nuclear fusion experiment: superconducting magnet cooling.

Superconducting materials: liquid nitrogen maintains a low temperature environment.Low temperature experiment: physical property research, cooling of quantum computing equipment.

Fuel tank inerting: military aircraft use nitrogen to reduce fuel tank flammability.Rocket propellant: liquid nitrogen is used for pre-cooling of low-temperature fuel pipelines.

Tire nitrogen: reduce tire pressure fluctuations and improve safety.Battery production: dry environment control in lithium battery assembly.

Drug production: nitrogen protection in reactor.Freeze drying: liquid nitrogen is used for the rapid freezing of vaccines and biological samples.

Air conditioning package: nitrogen filling to delay oxidation.Beer and beverages: nitrogen is used to replace oxygen before canning to extend the shelf life.

Laser cutting: nitrogen as an auxiliary gas, cutting stainless steel, aluminum alloy.Electron beam welding: high purity nitrogen protection molten pool.

Nitrogen replaces air and prevents metal oxidation. Nitrogen protects liquid aluminum and reduces dross.

Wafer processing: nitrogen is used in the inert environment of the lithography machine, chemical vapor deposition, and gas protection.Electronic packaging: prevent solder joint oxidation.