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针对国内热风阀阀板外水环经常出现裂纹的实际情况,运用有限元方法对热风阀阀板的温度场和热应力场进行了分析,其结论为热疲劳是引起裂纹的重要原因之一,并提出了防止热疲劳的措施。
In view of the fact that the outer ring of the domestic hot-air valve disc often cracks, the finite element method is used to analyze the temperature field and the thermal stress field of the hot-blast valve disc. The conclusion is that thermal fatigue is one of the important causes of the crack, And proposed measures to prevent thermal fatigue.