【摘要】 为解决铸造牙科修复支架过程中因各种原因造成铸件变形或缺陷 ,着重探讨了因铸造合金的性能与浇注系统对铸件的影响 ,并就解决铸造变形与缺陷提出了相关解决办法更多还原

【Abstract】 Casting for denture restorative trame needs a high quality of equipment,the complex materials,a degree of difficult technique and the useful art.Thus it has some difficulty of casting sharpeless and drawbacks’ caused at work.The mutual relations of casting alloy function and casting sprue system inquired,then the measures to solve this casting sharpeless and drawback were provided.更多还原