前 言 铜板材和棒材铸造方法繁多,如:立造(型)立浇、躺造立浇、躺造平浇等干砂型浇注,但这些铸造方法生产效率低、质量差、成本高。我厂采用的半层流浇注系统铸造的新工艺有以下特点: 1.可用潮型代替干型; 2.采用抽拉起模造型,改变了过去传统的造型方法; 3.采用球形冒口提高了铸件收得率。 Preface Copper plate and bar casting methods are numerous, such as: legislation (type) legislation pouring, lying to establish the pouring, lay flat pouring and other dry sand pouring, but these casting method of low production efficiency, poor quality, high cost. The new casting process adopted by the semi-solid flow casting system adopted by our factory has the following features: 1. Available tide instead of dry type; 2. Use pull-out mold modeling to change the traditional modeling methods; 3. Use spherical riser to improve Casting yield.