在 机械零件的过盈联接中 ,当配合尺寸和过盈量较大时 ,常用加热法进行装配。众所周知 ,包容件内孔热胀量的大小与材质、配合尺寸和加热温度诸因素有关 ,其计算比较复杂。在长期的生产实践中 ,我们总结出一个简便经验公式Δd= (1/100d)·t式中Δd———热胀量 ,μmd———配合 In the mechanical parts of the interference connection, when with the larger size and interference, the heating method used to assemble. It is well-known that the amount of thermal expansion in the inner hole of the containment piece is related to the material, the fit size and the heating temperature, and the calculation is complicated. In the long-term production practice, we summarize a simple empirical formula Δd = (1 / 100d) · t where Δd --- thermal expansion, μmd --- with