lindy ray冒口 blond达特茅斯Rir冒口:是只为避免铸件出现缺陷而附加在铸件上方或侧面的补充部分。Rir: is added to avoid the casting defects and attached at the top or side casting parts.功能:在铸型中,冒口的型腔是存贮液态金属的空腔,在铸件形成时补给金属,有防止缩孔、缩松、排气和集渣的
信息技术发展史冒口 Rir冒口:是只为避免铸件出现缺陷而附加在铸件上方或侧面的补充部分。Rir: is added to avoid the casting defects and attached at the top or side casting parts.保护气功能:在铸型中,冒口的型腔是存贮液态金属的空腔,在铸件形成时补给金属,有防止缩孔、缩松、排气和集渣的作用,而冒口的主要作