General situation of Japanese coremaking has been introduced,including shell core,cold box coreshooter,negative pressure coremaker etc.and developing tendency of shell core maker.
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This paper introduces the craft characteristics of casting the shell of the gearbox, including the manufacturing of the resin moulding, the application of the hard sand core and so on.
针对变速箱壳体毛坯铸造的工艺特点，介绍了其树脂模具的制造、树脂自硬砂砂芯应用等关键环节的技巧和做法。
The micro-encapsulation technology, including the core and the shell materials, different significant synthesize process, various characterization methods are studied in this thesis.
本文采用微胶囊技术，以不同树脂对不同相变材料进行包裹，并对微胶囊相变材料的性能进行了较系统的研究。
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