Titanium and titanium alloys in the car

In recent years, with the development of the automobile industry, the world's automobile production and increasing ownership. China's automobile industry by leaps and bounds in 2009, automobile production and sales of more than 1,300 million, more than the United States and Japan to become the world's automobile production and sales superpower. Car travel convenience to people and also produces fuel consumption, environmental protection and safety of the three problems. Focusing on sustainable development considerations, lower fuel consumption and reduced emissions of pollution is particularly urgent. According to authoritative statistics international motor vehicle fuel consumption by about 60% in vehicle weight. Each car lighten the weight of 10%, emissions can be reduced by 10%, can reduce fuel consumption by 7%. Thus, the automobile weight loss, weight is an effective measure to achieve the above objectives.
Automotive lightweight way to realize there are mainly two: First, optimize the car frame structure; the other is the use of lightweight materials in the automotive manufacturing. Light alloy currently used on automobiles are mainly aluminum, magnesium, titanium alloy sheet and the like.
Titanium applications and features in the car
Titanium is a new structural and functional materials, it has excellent overall performance, density, high specific strength. Density of titanium was 4.51g / cm3, interposed between the aluminum (2.7g / cm3) and iron (7.6g / cm3). Higher than the strength of the titanium alloy aluminum and steel, toughness and steel quite. Titanium and titanium alloy corrosion performance is good, better than stainless steel, particularly resistant to corrosion and micro-oxidizing atmosphere under chloride ion corrosion resistance in the marine atmosphere, a wide operating temperature titanium alloys, titanium alloys at low temperature -253 ℃ but also to maintain good ductility, and heat-resistant alloy operating temperature up to about 550 ℃, its heat resistance was significantly higher than that of aluminum and magnesium alloys. Also has good workability, weldability.
Titanium and titanium alloy Ti excellent performance since the industrial production on various tech industries much attention, along with the titanium industry started in the mid-1950s, titanium into the automotive industry. Into the 1990s, with the worldwide shortage of energy and enhance the awareness of environmental protection, especially in the automotive industry, the US, Japan and Europe and other countries have issued a series of ecological regulations on fuel efficiency, CO2 emissions, vehicle weight, automobile safety, reliability and put forward higher requirements. Many developed countries and the famous car manufacturers are actively developing and increasing investment in automotive research titanium. Provided a powerful impetus for the car with titanium. Entering the new century, China's titanium alloy bar industry has gradually entered the automotive sector.
In the current automotive market, with luxury cars, sports cars and racing demand increases every year, Titanium components also increased year by year. 1990 Global Automotive titanium is only about 50 tons / year in 1997 to 500 tons / year in 2002 to 1100 tons / year in 2009 to 3000 tons / year. Thus, the automotive industry with titanium into the acceleration phase.
Titanium components used in automobiles
The use of titanium in the car two main categories, the first category is used to reduce the quality of internal combustion reciprocating member (for reciprocating internal combustion engine parts in terms of reducing even a few grams of quality are important); the second category is used to reduce the total mass of the car. According to the design and the material properties of titanium on the new generation of vehicles mainly in the engine components and chassis components. In the engine system, can produce titanium alloys valves, valve springs, valve springs and connecting rod bearing and other components; chassis components primarily for springs, exhaust system, axle and fasteners.
According to information, in addition to the above cited focus, there are: Rocker engine parts, suspension springs, piston pin, turbocharger rotor, fasteners, lug nuts, bumper brackets, door broke into the beam, brake caliper piston, the pin bolt, the clutch disc, the pressure plate, the shift button, and so on.