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后盖是我厂汽车产品上的一个零件 ,属薄壁回转体结构 ,材质为 ZL 10 1,质量 1.5kg,主要壁厚 5mm,轮廓尺寸为180× 170 ( mm)。其结构特点决定了该件在生产中容易产生浇不足、冷隔、砂孔等缺陷。因此 ,必须采取合适的铸造工艺 ,并严格按工艺规程进行操作 ,才能获得合格的铸件
The back cover is a part of our factory automobile products. It is a thin-wall rotary structure made of ZL 10 1, with a mass of 1.5kg and a main wall thickness of 5mm. The outline size is 180 × 170 (mm). The structural characteristics of the decision of the pieces in the production of easy to produce inadequate pouring, cold interval, sand holes and other defects. Therefore, we must take the appropriate casting process, and strictly in accordance with the rules and regulations to operate in order to obtain qualified castings