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高炉炉顶装料设备中的三大铸钢件:大钟,托套与漏斗,工作温度约为500~700~oC,经常受炉料的冲击与摩擦,更由于对铸件本身重量与受平衡负荷的限制,因此,对铸件的铸造质量、尺寸公差与重量公差要求较严格。三大铸钢件虽然形状简单,但由于铸件尺寸大,断面薄,要能铸得完全合格,则相当困难。我车间数年来所做高炉三大件为数不少,其中托套与漏斗的形状大致相似,漏斗铸成整圈,而托套直径较大,在铸造时用两半合铸,中间留出120毫米切割裕量,然后由偏心处切
Blast furnace top loading equipment in the three major castings: the clock, care sets and funnel, the working temperature is about 500 ~ 700 ~ oC, often by the charge of the impact and friction, but also due to the weight of the casting itself and by the balance of load Of the restrictions, therefore, castings casting quality, size tolerance and weight tolerance requirements more stringent. Although the shape of the three steel castings is simple, but due to casting size, thin section, to cast fully qualified, it is quite difficult. The number of blast furnaces I made in the workshop over the past few years is quite large. The shapes of the trocar and the funnel are similar, the funnel is cast into a full circle, and the diameter of the trocar is large. Cut the margin in millimeters, then cut off by eccentricity