Ti-3Al-8V-6Cr-4Mo-4Zr Titanium Alloy Automobile Engine Valve Spring

摘要

Titanium alloy has been developed as a key component material in the aircraft and chemical industry because of its light, strong, corrosion resistance and heat resistance. At present, interest is increasing as a high-performance material applied to connecting rods and engine valves of racing car engines. have. Increasing the weight of driving components, such as engines, is a key factor in improving engine performance and fuel economy.;On the other hand, in order to manufacture such a part requires a plastic working in hot and cold, the general titanium alloy is very bad in cold working in cold.;In the present invention, by applying Ti-3Al-8V-6Cr-4Mo-4Zr, which is a β-C type titanium alloy developed for the first time to improve the cold workability and heat treatment effect, the physical properties have high strength of the existing steel level, spring Has reduced automotive weight by 28%, and has manufactured automotive engine valve springs.