我厂产品φ2.5×10M机械立窑的蜗轮齿圈的形状如图1,材料为ZQA19—4,零件结构带有幅板,铸件毛重为423公斤。如用砂型铸造,需设置重约460么斤的冒口,加上浇注系统,铸造一件蜗轮铸件约需铜水915公斤,而我们厂现有的熔炼设备只有两个300公斤的地坑油炉,不能满足需要。经研究决定采用了带砂芯的离心铸造工艺,经计算只需铜水550公斤。 I plant products φ2.5 × 10M Mechanical shaft kiln gear ring shape shown in Figure 1, the material is ZQA19-4, parts with a width of the structure, the casting weight of 423 kg. Such as sand casting, the need to set the weight of about 460 pounds of riser, together with the casting system, casting a worm gear casting takes about 915 kilograms of copper, and our existing plant melting equipment only two 300 kilograms of pit oil Furnace, can not meet the needs. After the study decided to use a centrifugal casting process with a sand core, calculated only 550 kg of copper water.