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零部件的可靠性设计,是铸造设备或系统可靠性的基础。它是在系统可靠性分析和可靠度分配以后进行。零部件的可靠性设计是解决如何将经过可靠度分配以后的零件可靠性指标值,直接设计到零部件中去的问题。零部件的可靠性设计的步骤大致如下: a.确定零部件的失效模式和失效判据。铸造设备的零部件,常见的失效模式有断裂、疲劳、复合疲劳、压杆失稳、磨损、腐蚀和振幅过大等。一个零件的失效模式可能有多种,这取决于其承载条件和工作特点。因此,在零部件可靠性设计之前,往往需要进行失效模式、
The reliability design of the components is the basis for the reliability of the foundry equipment or system. It is done after system reliability analysis and reliability allocation. The reliability design of components is how to solve the problem of how to directly design the components reliability index value after the reliability distribution. The reliability of components design steps are as follows: a. Determine the failure modes of components and failure criteria. Foundry equipment parts, common failure modes are broken, fatigue, fatigue, pressure bar instability, wear, corrosion and amplitude is too large. There are many possible failure modes for a part, depending on its load-bearing conditions and operating characteristics. Therefore, the reliability design of components before, often need to failure mode,