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本文从我国汽车工业大发展的形势预测气阀钢大发展的趋势。阐述了气阀钢系列化的重要性.概述了我国气阀钢的发展和世界各国气阀钢的系列,探讨了我国气阀钢系列化发展战略,包括马氏体气阀钢、奥氏体气阀钢、气阀合金、低合金进气阀用钢共四部分,重点是马氏体和奥氏体气阀钢.提出中碳马氏体发展5Cr8Si2,高碳马氏体发展MF811,汽油机用奥氏体气阀钢发展21—2N,柴油机用奥氏体气阀钢发展23—8N,高强度奥氏体气阀钢发展21—4NWNb,气阀合金发展LF2等战略.
This article predicts the great development of valve steel from the situation of great development of China’s automobile industry. The importance of serialization of valve steel is expounded.The development of valve steel in our country and the series of valve steel all over the world are summarized.The development strategy of valve steel serialization in our country is discussed, including martensitic valve steel, austenite Valve steel, valve alloy, low-alloy intake valve steel a total of four parts, the focus is martensitic and austenitic valve steel .Carbon martensite proposed development of 5Cr8Si2, high carbon martensite development MF811, gasoline engine With the development of austenitic valve steel 21-2N, diesel engine with austenitic steel valve development 23-8N, high strength austenitic steel valve development 21-4NWNb, valve alloy LF2 development strategy.