This paper introduces the process of making "nine dragon" tripod vessel and describes the technology and keyfor casting the body by lost wax pattern plaster mold process in detail.
前言： 简述了“九龙鼎”的制作过程，详细介绍了用熔模石膏型铸造大型鼎身的工艺及要点。
2
The key issues for bronze gnomon casting with integrated and clear surface in investment casting in plaster mold involves to prevent large plate from deformation and to ensure full mold filling.