Subsequently it is reliable for the proportional solidification theory to design feeding system of ring carrier casting of nodular iron.
实际证明：采用均衡凝固理论设计球铁圈形铸件的补缩系统是可靠的。
Experiments indicates that the harrow piece of nodular cast iron in squeezing casting has the features of excellent mechanical properties and low production cost.
经试验，挤压铸造的球墨铸铁耙片力学性能好，生产成本低。
The self-compensated contraction caused by graphite dilatation in the solidification process of nodular cast iron makes casting with less flow-off or casting without flow-off possible.
利用球墨铸铁凝固过程中的石墨化膨胀，进行自身补缩，可以实现少胃口或无冒口铸造。
Some batches of production showed that microstructure of nodular iron in investment casting can reach to 2 grade nodularization, 6 grade nodule size and 10% pearlite.
经批生产考核，精铸球铁铸件的金相组织可达到球化级别2级，石墨球大小6级，珠光体含量10 %的要求。
This paper introduces casting and heat treatment of heat resisting nodular iron of fixed mould of creep heating pressure in titanium alloy, and discusses the formation cause of it.
介绍了铁合金蠕变热压定形耐热球墨铸铁模具铸件的铸造、熔炼和热处理工艺，探讨了它的形成机理。
The production of light nodular graphite iron parts with high ductility in investment casting was expounded in all aspects including both technological analysis and processing control.
对熔模精密铸造高韧度球墨铸铁小件的生产，从工艺分析到生产过程的控制进行阐述。
A sort of chilled nodular iron camshaft was developed by adopting resin-coated sand shell mould casting process.
开发了一种采用树脂砂壳型铸造的激冷球铁凸轮轴。
High-performance alloy casting iron such as hub break hub. Rough nodular casting and other casting of automobile replacement parts.
轮毂、制动毂等高牌号合金铸铁，球铁铸件毛坯及其他汽车配件毛坯。
Spraying Mg spheroidization technology in the production of centrifugally nodular cast iron pipes has achieved good effect in improving casting quality, reducing production costs.
喷镁球化工艺在生产离心铸造球墨铸铁管中取得了良好效果，提高了铸管质量，降低了生产成本。
It is introduced the design principal and operation method of CAD software for vanishing-mould casting process of nodular cast iron pipe. It can raise the design efficiency and precision.
介绍了球墨铸铁管件消失模铸造工艺的计算机辅助设计CAD软件的设计原理、操作方法，该CAD软件可提高消失模铸造球铁管件的工艺设计效率和设计精度。
It is introduced the design principal and operation method of CAD software for vanishing-mould casting process of nodular cast iron pipe. It can raise the design efficiency and precision.
介绍了球墨铸铁管件消失模铸造工艺的计算机辅助设计CAD软件的设计原理、操作方法，该CAD软件可提高消失模铸造球铁管件的工艺设计效率和设计精度。
应用推荐