Guide

As a light alloy with high strength and toughness, good corrosion resistance, good workability and welding performance, aluminum alloy is widely used in the aerospace field. Due to its excellent comprehensive performance, it has become the skin and frame of aircraft and the main structure of spacecraft. The preferred material [1-3], the main role is to bear and transmit loads [4]. At present, most aircraft in our country have the phenomenon of “flying less and parking more”. Among them, more than 95% of the calendar life of military aircraft is parked on the ground, and the ground corrosion effect is much higher than that of air fatigue, which is the Read more

Aluminum nitride ceramics have excellent thermal, mechanical and electrical properties, such as: high thermal conductivity (theoretical value is 320W/(m K)), low dielectric constant (about 8 at 1MHz), and silicon (Si) phase. Matching linear expansion coefficient (293 ~ 773K, 4.8 × 10-6K-1), excellent electrical insulation (volume resistivity greater than 1012Ω·m), low density (3.26g/cm3), non-toxic, high specific strength Therefore, aluminum nitride ceramics have a wide range of applications in power electronic devices, automotive industry, electric vacuum devices and other fields. Main methods of metallization of aluminum nitride ceramics To use aluminum nitride ceramics as electronic devices, it is often necessary to effectively connect with other materials (metals, alloys, etc.). In order to Read more

As an important lightweight material, aluminum honeycomb panels are widely used in the aviation manufacturing industry, and have long been used in foreign railway vehicles. They are widely used, such as the French TGV series and the Italian ETR series high-speed trains. In China, aluminum honeycomb panels have only been used in recent years. Although they have achieved certain results, their application scope is still very limited. The understanding of the characteristics and application scope of honeycomb sandwich materials needs to be further strengthened and expanded. Aluminum honeycomb panel is a composite material formed by bonding aluminum honeycomb core material and surface material. In general, aluminum honeycomb panel has the Read more

With the development of modern industry, the application of light metal materials is becoming more and more extensive. Aluminum and aluminum alloys have a series of advantages such as low density, strong electrical and thermal conductivity, excellent mechanical properties, and good machinability, and have been widely used in various sectors of the national economy. In the field of construction, for example, 98% of high-rise buildings in Japan use aluminum alloys for doors, windows and wall decoration. Compared with ordinary wooden doors and windows and steel doors and windows, aluminum alloy doors and windows have the characteristics of light weight, material saving, beautiful appearance, corrosion resistance, and convenient maintenance. Although the Read more

The aluminum and aluminum alloy materials are heated to a certain temperature and kept for a certain period of time to obtain the expected product structure and performance. The Basic Principle Of Aluminum And Aluminum Alloys Heat Treatment Annealing: The product is heated to a certain temperature and kept for a certain period of time and then cooled to room temperature at a certain cooling rate. Through atomic diffusion and migration, the organization is made more uniform and stable, and the internal stress is eliminated, which can greatly improve the plasticity of the material, but the strength will be reduced. Ingot homogenization annealing: keep the ingot at high temperature for Read more