What materials are used for the valves of new energy vehicle engines?
Release time:
2025-09-12
Stainless Steel
Stainless steel is widely used in automotive engine valves due to its excellent corrosion resistance and high-temperature resistance. For example, the electronic throttle structure of some new energy vehicles uses stainless steel materials, which can effectively prevent corrosion. In addition, stainless steel is also used to manufacture engine gaskets, exhaust systems, and other components.
Aluminum Alloy
Aluminum alloy is widely used in new energy vehicle engine valves because of its lightweight and good thermal conductivity. For example, high-silicon aluminum alloy is used to manufacture engine blocks and cylinder heads to improve engine lifespan and reduce friction loss. Additionally, aluminum alloy is used to make pistons and connecting rods to enhance fuel economy and power response characteristics.
Ceramic Materials
Ceramic materials are an ideal choice for new energy vehicle engine valves due to their excellent high-temperature resistance, wear resistance, and corrosion resistance. For instance, alumina ceramics are used to manufacture engine valve plates, significantly reducing weight and lowering fuel consumption. Moreover, ceramic materials are also used in sensors and electronic packaging to meet the demands of high-frequency thermal cycling and thermal shock resistance.
Titanium Alloy
Titanium alloy is gradually applied in high-load engine components due to its high strength and high-temperature resistance. For example, the intake and exhaust valves of high-performance engines use Ti-6Al-4V titanium alloy to reduce inertia and improve engine response speed.
The choice of these materials depends not only on the specific function and operating environment of the valves but also on factors such as cost, processing difficulty, and supply stability. With the continuous development of new energy vehicle technology, the application scope and performance requirements of these materials are also continuously expanding and improving.
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