Какви са приложенията на титанова сплав в областта на новите енергийни превозни средства?
Titanium alloy is an important high-strength, low-density metal material with excellent corrosion resistance, high-temperature strength and good machinability, so it is widely used in automobile manufacturing. The following are the main applications of titanium alloy in automobile manufacturing:
Engine parts
Titanium alloy is widely used in the manufacture of engine parts, such as turbine blades, intake pipes, exhaust pipes, pistons, connecting rods, valves, cylinder liners, etc. The high-temperature strength and excellent corrosion resistance of titanium alloy make it an ideal material for manufacturing high-performance engine parts.
Braking system
Titanium alloy can be used to manufacture brake discs, brake pads and other components in the braking system. Compared with traditional steel brake discs and brake pads, titanium alloy products have better wear resistance and high temperature resistance, which can better meet the requirements of high-speed driving and high-load braking.
Suspension system
Titanium alloy can also be used to manufacture springs, shock absorbers and other components in the suspension system, which can reduce the weight of the vehicle body and improve the performance and stability of the suspension system.
Body structure
Titanium alloy can be used to manufacture doors, roofs, frames and other components in the vehicle body structure. Compared with traditional steel body structures, titanium alloy products are lighter, stronger and more corrosion-resistant, which can reduce the weight of the car body and improve the fuel economy and performance of the car.
Other applications
In addition to the above main applications, titanium alloys can also be used to manufacture automotive interior parts, such as seat frames, armrests, dashboard frames, etc. The lightweight characteristics of titanium alloys can reduce the weight of the car body and improve fuel economy. In electric vehicles, titanium alloys can be used to manufacture high-performance drive motors and inverters. Due to the high strength and low weight of titanium alloys, these components can improve the power performance and cruising range of electric vehicles.
Ways to reduce costs
Although titanium alloys have many advantages in automobile manufacturing, their high cost has always been the main factor limiting their widespread application. In order to reduce the cost of titanium alloys, researchers have done a lot of work in the smelting, processing and manufacturing of titanium. For example, the use of electron beam cooling furnaces and plasma beam cooling furnaces for smelting can improve the metallurgical quality of titanium ingots, and a large amount of recycled furnace materials can be used, effectively reducing the cost of ingots. In addition, casting is a classic (near) net shaping process, and the parts produced do not require machining or require very little machining, which saves a lot of metal and reduces production costs.
Future Development Trends
With the development of the automotive industry, especially the increasing demand for luxury cars, sports cars and racing cars, the use of titanium parts will also increase year by year. In the future, with the advancement of titanium smelting technology and the reduction of processing costs, the application of titanium alloys in automobile manufacturing will be more extensive.
Reasons for titanium alloys in the field of new energy vehicles
Application 1: Valves and valve seats
Application description: Titanium alloys are widely used in valves and valve seats of new energy vehicles. For example, Ti-6A1-4V alloy is often used to manufacture intake and exhaust valves.
Reasons:
Weight reduction: The use of titanium alloys can significantly reduce the weight of the valves, thereby improving the efficiency and performance of the engine.
Extended service life: Titanium alloys have high corrosion resistance and high strength, which can extend the service life of the valves.
High reliability: Valves made of titanium alloys are more reliable in extreme environments, reducing the possibility of failure.
Application 2: Connecting rods and engine parts
Application description: Titanium alloys are also important in the manufacture of connecting rods and other engine parts. Ti-6A1-4V is one of the most commonly used materials, and others such as Ti-4A1-2Sn-4Mn and Ti-7A1-4Mo are also under development.
Reason:
Improve performance: Using titanium alloys to make connecting rods can effectively improve the performance of the engine because titanium alloys have the characteristics of high strength and low density.
Corrosion resistance: The corrosion resistance of titanium alloys allows it to maintain good performance in harsh environments.
Reducing weight: The use of titanium alloys can reduce the overall weight of the engine, thereby improving fuel economy and power performance.
Application 3: Return pipe and exhaust system
Application description: Titanium tail nozzles and return pipe components are also used in new energy vehicles. These components are not affected by chloride salts and sulfur in exhaust gas, will not pit, and will not rust even at welds. Compared with traditional materials (such as stainless steel), titanium alloys can reduce weight by 40% and improve fuel economy.
Reason:
Corrosion resistance: Titanium alloy has extremely strong corrosion resistance and can remain stable in harsh exhaust environments.
Weight advantage: The lightweight characteristics of titanium alloy help reduce the weight of the whole vehicle, thereby improving fuel efficiency and power performance.
Strong environmental adaptability: Titanium alloy can adapt to various complex environmental conditions and ensure the long-term stable operation of the exhaust system.
Application 4: Suspension spring
Application description: Titanium alloy is also used in automobile suspension springs. Used to manufacture suspension springs, this material not only retains the excellent performance of titanium alloy springs for aviation, but also greatly reduces costs.
Reason:
Light weight: Titanium alloy suspension springs are 60-70% lighter than steel suspension springs, which helps to reduce the weight of the whole vehicle and improve fuel economy and power performance.
Corrosion resistance: The corrosion resistance of titanium alloy enables it to maintain good performance under various environmental conditions.
Low shear modulus: The low shear modulus of titanium alloy can reduce the turning of the spring coil, thereby improving the performance of the suspension system.
Application 5: Muffler
Application description: Titanium alloy is also used in the manufacture of mufflers. The weight of the titanium muffler is only 5-6kg, which is much lighter than the mufflers made of stainless steel and other materials, and it is easy to operate.
Reason:
Light weight: The lightweight characteristics of the titanium alloy muffler help reduce the weight of the whole vehicle, improve fuel economy and power performance.
Corrosion resistance: The corrosion resistance of titanium alloy enables it to maintain good performance under various environmental conditions.
Convenient operation: The operation of the titanium alloy muffler is easier, which improves the driving experience.
Application 6: Body and other parts
Application description: Titanium alloy can also be used to manufacture other body parts, such as engine components, drive gear system parts, suspension systems and structural parts.
Reason:
High strength and lightweight: The high strength and lightweight characteristics of titanium alloy help improve the performance and fuel economy of the whole vehicle.
Corrosion resistance: The corrosion resistance of titanium alloy enables it to maintain good performance under various environmental conditions.
Improved durability: The use of titanium alloy can improve the durability of body parts and reduce the frequency of repairs and replacements.
Application 7: Fasteners
Application description: Titanium alloys are also used in the manufacture of fasteners. Many types of fasteners can be replaced by titanium instead of steel, especially in light transportation vehicles, where titanium fasteners are increasingly used.
Reasons:
High strength and light weight: The high strength and light weight characteristics of titanium alloys help improve the performance and fuel economy of the entire vehicle.
Corrosion resistance: The corrosion resistance of titanium alloys enables it to maintain good performance under various environmental conditions.
Improved durability: The use of titanium alloys can improve the durability of fasteners and reduce the frequency of repairs and replacements.
Summary
Titanium alloys are widely used in the field of new energy vehicles, covering valves, connecting rods, return pipes, suspension springs, mufflers, body parts and fasteners. Its high strength, light weight and corrosion resistance make it an ideal material for the manufacture of new energy vehicles, helping to improve the performance, fuel economy and durability of the entire vehicle.
