Reducing fuel consumption and harmful waste (CO2, NOX, etc.) emissions have become one of the main driving forces and directions of technological progress in the automobile industry. Research shows that lightweight is an effective measure to save fuel and reduce pollution. For every 10% reduction in vehicle quality, fuel consumption can be reduced by 8% to 10%, and exhaust emissions can be reduced by 10%. In the aspect of driving, the acceleration performance of the vehicle after lightening is improved, and the vehicle control stability, noise and vibration are also improved. From the perspective of collision safety, after the vehicle is lightweight, the inertia is small and the braking distance is reduced.
The preferred method of automotive lightweight is to use lightweight materials with high specific strength, such as aluminum, magnesium and titanium, instead of traditional automotive materials (steel). In 2009, the amount of titanium used in cars worldwide reached 3,000 tons. Titanium has been used in automobile racing for many years. At present, almost all cars are made of titanium. The titanium used in cars in Japan has exceeded 600 tons. The advantages of using titanium in cars include: reducing weight and fuel consumption; Improve power transmission effect and reduce noise; Reduce vibration and reduce component load; Improve car durability and environmental protection.
Titanium is widely used in medical field. Titanium is close to human skeleton and has good biocompatibility to human tissue and no toxic side effects. Human implant is a special functional material closely related to human life and health. Compared with other metal materials, the advantages of using titanium and titanium alloy are as follows: 1. 2. Low elastic modulus; 3 no magnetism; 4. Non-toxic; 5. Corrosion resistance; 6 high strength and good toughness. The amount of titanium in surgical implants is growing by 5-7% a year. Using titanium and titanium alloy manufacture of femoral head, hip, humerus, skull, knee, elbow, shoulder joint, joint, jaw and heart valves, kidney distinguishes the membrane, blood vessel expander, plywood, prosthesis, fastening screws and other hundreds of transplanted into the body of the metal, has obtained the good effect, gave a high evaluation by the medical profession.
