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Selecting VALVE SEATS for Gas and Diesel Engines

机译：选择用于汽油和柴油发动机的气门座

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摘要

Of all the parts inside an engine, the valve seats probably take more abuse than any other component. Besides the constant pounding of the valves against the seats as the valves open and close, the exhaust seats are seared with hot gasses every time the engine exhales., Hard working diesel engines, performance engines, and engines that run on dry fuels such as propane or natural gas produce a lot of heat in the combustion chamber and often require valve seats that are harder and more heat-resistant. Stellite, chromium, cobalt, tungsten and nickel alloy valve seats are commonly used for such high heat applications as are tool-steel valve seats. Beryllium-copper or copper-nickel alloy seats are often used in racing applications, typically with lightweight titanium valves
机译：在发动机内部的所有零件中，气门座可能比其他任何零件都受到更多的滥用。除了在阀门打开和关闭时阀门不断撞击阀座之外，每次发动机呼气时，排气阀座都会被热气灼热。硬工作的柴油发动机，高性能发动机以及使用干燃料（如丙烷）运行的发动机天然气会在燃烧室内产生大量热量，并且通常需要更硬，更耐热的阀座。司太立，铬，钴，钨和镍合金阀座通常用于工具钢阀座等高温应用。铍铜或铜镍合金阀座通常用于赛车应用，通常与轻型钛合金阀一起使用

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