在制造侧架和摇枕铸件时,其设计过程中规定的铸件承载性能首先是抗疲劳性能和寿命。至关重要的一点是承载能力要符合生产工艺所能达到的水平和变化的运用条件。换言之,在现有的生产方法和检控手段之下,侧架和摇枕应保证能承受规定气候条件下的运营负荷,并且要有必要的安全系数。 In the manufacture of side frames and bolster castings, the design of the casting process specified in the first performance is the fatigue resistance and life expectancy. It is crucial that the carrying capacity be adapted to the level and changing conditions of use that the production process can achieve. In other words, under existing production methods and prosecutions, the sideframes and bolster should be guaranteed to withstand the operating load under the specified climatic conditions and with the necessary safety factor.