ABSTRACT

In the casting method, it is crucial to properly make the moulding design to produce sound parts. Volumetric change, especially during the solidification of spheroidal graphite cast irons, may show different behaviour compared to steel and aluminium castings. In this study, castings were carried out with single and double feeders with varying casting parameters of green sand and resin mould sand containing different cross-sectional thicknesses. Depending on the chemical composition, mould rigidity and inoculation efficiency, and the importance of the feeder path was evaluated by experimental and modelling techniques. Consequently, it was observed that the risk of shrinkage in resin moulds is less than in green sand castings in the same moulding design. In addition, it has been found that the number of feeders and neck connection is an important parameter in pore formation.

摘要

在铸造方法中，正确地进行成型设计以生产出良好的零件至关重要。与钢和铝铸件相比，体积变化，特别是在球墨铸铁凝固过程中，可能会表现出不同的行为。在这项研究中，铸件采用单冒口和双冒口进行，不同的浇注参数包括不同截面厚度的湿型砂和树脂型砂。根据化学成分、模具刚度和孕育效率，通过实验和建模技术评估进料器路径的重要性。因此，据观察，树脂模具的收缩风险低于相同造型设计中的湿砂铸件。此外，