Analysis of rolling technology for titanium alloy pipe materials used in nuclear industry and aerospace industry

1. Aerospace

The major titanium use countries in the aerospace industry are concentrated in Western countries, especially the United States, where 60% of titanium is used in this field. Asian countries, Japan and China all invest about 10% of titanium in this field. However, with the rapid development of Asian aerospace in recent years, the consumption of titanium in the aerospace field will increase accordingly. From a global perspective, the aviation industry plays a decisive role in the titanium market. Historically, the major cycles of the titanium industry are closely related to the aviation industry.

2. Civil aircraft

(1) Reduce structural weight and improve structural efficiency

(2) Meet the use requirements of high-temperature parts

(3) Meet the requirements that match the structure of the composite material

(4) Meet the requirements of high corrosion resistance and long life

3. Military weapons

The development and procurement of military weapons continue to develop in the direction of lightness and flexibility. In order to meet the fighter's combat performance requirements, in addition to the use of advanced design technology, it is necessary to use materials with excellent performance and advanced manufacturing technology. One of the important measures is to choose a large number of titanium alloys and improve the application level of advanced titanium alloys.

Since the 1960s, the amount of titanium used in foreign military aircraft has increased year by year. The amount of titanium alloy used in various advanced military fighters and bombers designed in Europe and the United States has stabilized at more than 20%, and the proportion of titanium used in new models is increasing. Promote.

4. Car

Reducing fuel consumption and reducing hazardous waste (CO2, NOX, etc.) emissions has become one of the main driving forces and directions for technological progress in the automotive industry. Research shows that lightweight is an effective measure to save fuel and reduce pollution. For every 10% reduction in the quality of a car, fuel consumption can be reduced by 8%-10%, and exhaust emissions can be reduced by 10%.

In terms of driving, the acceleration performance of the vehicle is improved after the weight is reduced, and the vehicle control stability, noise, and vibration are also improved. From the perspective of collision safety, after the car is lightweight, the inertia during a collision is small and the braking distance is reduced.

The preferred way to reduce the weight of automobiles is to replace traditional automobile materials (steel) with light materials with high specific strength, such as aluminum, magnesium, and titanium. In 2009, the global amount of titanium used in automobiles reached 3,000 tons. Titanium has been used in racing cars for many years. At present, almost all racing cars use titanium. Japanese cars use more than 600 tons of titanium. With the development of the global automobile industry, the use of titanium for automobiles is still increasing rapidly.
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