采用金属型立式浇铸，严格控制铸造工艺参数(模具温度、浇注温度、浇注速度)，以避免气孔、缩松、冷隔等缺陷的产生。
By using metal mold casting, we can control mold temperature, infusing temperature, infusing speed to avoid defects of pore, cold partition, shrink and loose.
对熔模铸件孤立热节热型壳进行了浇注前及浇注后局部水淬激冷试验。
Experiments for hot mold shell with isolated hot spot by local water quenching in investment casting before and after pouring were conducted.
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