Aerospace

Tungsten carbide (hard alloy), with its core advantages such as ultra-high hardness, high temperature resistance, wear resistance, and low coefficient of expansion, has become a key material in the aerospace field, adaptable to extreme operating conditions and high-precision requirements. It is widely used in the manufacturing of core components and precision machining tools, summarized as follows:

In the field of aero-engines, tungsten carbide is the core guarantee for the "heart" components. Its high temperature resistance (maintaining high hardness above 600℃) and corrosion resistance are used in turbine blade wear-resistant inserts, combustion chamber liners, and fuel injector valve cores, resisting the erosion and corrosion of high-temperature exhaust gases at 1000-1600℃, significantly extending component life. Tungsten carbide bearing rolling elements are suitable for the high-speed operation of engine main shafts at tens of thousands of revolutions per minute, with wear resistance 5-10 times that of ordinary bearing steel, improving operational reliability.

In the spacecraft field, tungsten carbide is suitable for extreme environments in multiple stages, including launch, on-orbit, and reentry. Rocket engine nozzle throat liners utilize fine-grained tungsten steel or composite materials, capable of withstanding high-temperature ablation at 2000-3000℃, ensuring stable thrust. Lander buffer components leverage their high compressive strength and toughness to absorb landing impact energy. Satellite antenna feeds and structural connectors rely on their excellent dimensional stability and resistance to space plasma erosion to ensure on-orbit accuracy and long-term reliability.

In precision machining, tungsten steel tools are crucial for processing difficult-to-machine materials. For commonly used aerospace materials such as titanium alloys, high-temperature alloys, and carbon fiber composites, tungsten steel end mills and drills offer cutting efficiency 3-5 times that of high-speed steel, while avoiding material delamination and burrs. Cold stamping and precision forging dies exhibit 10-20 times the wear resistance of traditional die steel, enabling hundreds of thousands of high-precision machining cycles, reducing subsequent allowances, and improving production efficiency.

In addition, tungsten steel is also used in radiation shielding components for nuclear-powered spacecraft (with shielding efficiency superior to lead and non-toxic) and inertial components for inertial navigation systems. With its high density and high rigidity, it meets the requirements for radiation resistance and high sensitivity, fully supporting the high performance and high reliability of aerospace equipment.