鞍钢炼铁厂原料场有一台50年历史的陈旧10吨门型吊车。该吊车某些部位设计不合理,小车四块车轮轴瓦发热,在空负荷下运行几米或几十米,轴瓦温升即达70～80℃,只能慢慢运行,温度太高时只有停车降温,严重时需用冰块挂在轴瓦上。每次大修都需用2～3个月进行磨合才能投入使用。 Anshan Iron and Steel Mill raw material market has a 50-year-old 10-ton gantry crane. Some parts of the crane design is unreasonable, the car four wheels bearing fever, air-load running a few meters or tens of meters, bearing temperature reached 70-80 ℃, only slowly running, the temperature is too high, only parking cooling , Serious need to use ice hanging on the bearing. Each overhaul need to be run in 2 to 3 months to put into use.