采用熔模铸造技术制备了仿古旅游工艺品———铜鼓。
Imitation antique bronze drum for tourism was produced by investment casting.
重点介绍了喷嘴的熔模铸造基本工艺过程和主要工艺参数。
The basic technical process and main processing parameter of investment casting nozzles are presented in detail.
介绍了石膏原材料的组成和性能，阐述了石膏型熔模铸造的工艺过程。
The composition and properties of plaster mould have been introduced, and the technological process and applied characteristics of plaster mould investment casting is discussed.
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