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.
通过对3种喷嘴的综合比较，优选出喷嘴3作为后续喷雾激冷室大型冷模实验的定型喷嘴。
Among the three kinds of nozzles, nozzle 3 performed the best, and nozzle 3 would be chosen as the nozzle of the following spray-quench chamber's large-scale cold model experiments.
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