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русскийMar 07,2024
Aerospace fasteners are generally used in aircraft, satellites, rockets and other aerospace vehicles. They are typical high-end fasteners. High-altitude flight, safety is the first, so the fasteners used on aircraft generally use special The material has special properties and must be strictly tested to ensure the safety of the flight.
The total weight of fasteners used in a modern aircraft can account for 5%-6% of the total weight of the aircraft, and various types of fasteners on a medium-sized aircraft can reach 2-3 million. And these screws and nuts must withstand extreme temperature differences, high cyclic loading, and repeated vibration and pressure, and the materials used include high-strength steel, alloy steel, titanium, super alloys, etc.
Development Status of Global Aerospace Fasteners
Flange Nut Development Status of Global Aerospace Fasteners
From the perspective of the world fastener market, the global demand for aerospace fasteners is mainly concentrated in the three major markets of North America, Europe and Asia. The United States and Europe will remain the two major markets in the aerospace industry in the future, and the United States is the largest Aviation fasteners distribution center and country of use.
Driven by the strong development of the Asian market, the Asia-Pacific region has great potential for the development of the aerospace industry, which has maintained a relatively high growth rate in recent years. The development of the Asia-Pacific region and the rise of the Chinese market will propel China to use its advantages such as low cost and raw materials to become the largest net exporter of high-end industrial fasteners.
With the development of aerospace technology, from the perspective of fastener demand, technically strong, high-performance special aerospace fasteners, special-purpose fasteners and standard fasteners will develop vigorously in the next few years. The application of the above fasteners in emerging markets such as non-military and nano-aerospace will also see growth. In addition, the rapid development of the aircraft manufacturing industry and the increase in military spending will further promote the development of the aerospace fastener market.
Status Quo of China Aerospace Fasteners
Status Quo of China Aerospace Fasteners
Fasteners have gone through five generations from the beginning to the present. The general trend is the development of light, small and combined structure, and the innovation of performance to high strength and high reliability.
At present, the fasteners produced by many enterprises in my country are at the level of the first generation of general fasteners. As long as the connection problem is solved, the material is mainly carbon structural steel, which has low strength and large structure. The high-end fasteners used in automobiles, nuclear power, ships and other fields are in the second and third generations, with high technological content of materials, and greatly enhanced strength and fatigue resistance. The high-end fasteners used in aerospace and other fields have basically reached the level of the third generation, and are gradually transitioning to the fourth and fifth generations.
At present, my country's aerospace industry started late, and it is still far from the advanced level of foreign countries. Especially in the field of aviation, civil aviation and military aircraft are equivalent to the level of the United States in the 1980s. The manufacturing level, technical state management level, and testing and testing capabilities of various manufacturers are uneven, and a specialized production base that combines research and manufacturing has not been formed, which is not conducive to the technical research and development of aerospace fasteners.
Therefore, accelerating the transformation of existing equipment, rationally reorganizing institutions, introducing necessary international advanced manufacturing technology and equipment, and directly adopting international technical standards and inspection standards can make my country's aviation standard parts reach the world's advanced level. The market size of domestic aerospace supporting high-end fasteners is expected to rise steadily. By 2021, the market size is expected to reach 22.26 billion yuan.
Stock Code: 000906