可靠性是压缩机气阀最主要的要求之一。影响气阀可靠性的因素很多,如压缩机气阀的结构参数影响阀片的撞击速度和应力;阀片的材质和制造工艺影响疲劳强度等。就目前的技术水平而言,气阀的结构参数基本上已能做到设计合理。由于阀片的材质受到材料冶炼部门的限制,所以制造工艺就成为提高气阀可靠性的主要问题。它不仅直接影响阀片的使用寿命,而且涉及到制造成本。例如,冲制阀片的生产率高,制造成本低,国内的网状阀片也曾使用过冲制工艺,但实际使用中寿命都很低。不少人认为冲制毛坯边缘存在微观裂纹,又缺少合适 Reliability is one of the most important requirements for compressor valves. Many factors affect the reliability of the valve, such as compressor valve structure parameters affect the impact of the valve speed and stress; valve material and manufacturing processes affect the fatigue strength. The current technical level, the structural parameters of the valve can basically have been designed to be reasonable. Since the material of the valve plate is limited by the material smelting department, the manufacturing process becomes a major issue for improving the reliability of the valve. It not only directly affect the service life of the valve, but also related to manufacturing costs. For example, the production of punched valves is high, the manufacturing cost is low, and the domestic reticulated valves have also been used for over-punching processes, but the actual service life is very low. Many people think that there is micro-cracks on the edge of the blanking blank, and lack of suitable