1·Through reasonable selecting and strict controlling the chemical composition and process parameters, the acceptable mould castings has been successfully produced without riser.
采用无冒口铸造技术，合理选择并严格控制化学成分和工艺参数，成功地生产出合格的铸件。
2·Technique character, riser design, tilting height and deformation avoiding of casting in tilting pouring casting process for cast steel has been introduced with examples.
对倾斜浇注工艺特点、冒口设计、倾斜高度和防止铸件变形等作了详细介绍并举出应用实例。
3·Several cylindrical castings with different modulus and size of riser necks cast in furan bonded silicon sand molds are examined and analyzed numerically.
在呋喃树脂砂型条件下，针对不同模数、不同冒口颈尺寸的圆柱试样进行了模拟计算和浇注试验。
4·At the same time, the weight of castings, riser and gating system is calculated accurately to meet the demand of the process design.
同时为了满足工艺设计的要求，对铸件本身和浇注系统、冒口的质量进行了精确统计。
5·The CAD system of casting process, including processing parameters, riser and gating system design modules, has been developed based on UG molding software.
在UG造型软件基础上开发了铸造工艺CAD系统，包括工艺参数设计、冒口设计和浇注系统设计等模块。