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虽然又出现了新的低压铸造液面加压系统,但目前国内低压铸造机上所采用的气控系统多数还是仿制北京内燃机总厂设计的DKF—1型控制阀。这种控制阀在实际应用中仍存在一些问题,例如不能快速增压等。为从理论上认识这些问题的实质,特对DKF—1型控制系统的动态特性作一分析。为了研究该系统的动态特性,首先根据系
Although a new low-pressure casting liquid level pressurization system has appeared, most of the air-control systems used in domestic low-pressure casting machines are still the DKF-1 type control valves designed by Beijing Internal Combustion Engine Plant. This control valve in practical applications, there are still some problems, such as rapid pressurization can not. In order to theoretically understand the essence of these problems, we specially analyze the dynamic characteristics of the DKF-1 control system. In order to study the dynamic characteristics of the system, first of all according to the Department