X射线实时成像在铝合金压铸件上的应用

针对快速准确检测铝合金压铸零件内部质量的问题，采用x射线实时成像系统对铝合金压铸件凸轮轴盖进行内部质量检测试验．依据X射线实时成像的工作原理，利用图像呈现的灰度对零件内部缺陷进行评价．采用线切割方法获取零件内部缺陷截面，验证图像缺陷和实际缺陷的对应关系．通过试验发现不同类型的实际缺陷对应实时成像图像不同的缺陷形貌．缩松在影像中呈羽毛状或海绵状，缩孔在影像中呈树枝状较大的影像，气孔在影像中呈现清晰的圆形或椭圆形轮廓．x射线实时成像探伤能够准确反映铝合金压铸件内部缺陷特征，精确控制产品质量．

The Application of X-ray Real-time-image System in Aluminum AIIov Die Castina Parts

Aimed at quickly and accurately checking the internal quality problem existing in the die casting parts, the X-ray real-time-image system testing is used to check the internal defect occurring in aluminum die cast- ing camshaft parts. In the light of the working theory of the X-ray real-time-image system, the gray scale image presented is applied to evaluate the internal defect. The section defect acquired by the line cutting test is proved to draw the corresponding between the results of image defect and real defect. According to the test, different types of defects in the parts are available corresponding to the different morphology of the defects in the real-time imaging photos. We can find that shrinkages present feathery or sponge-like image present larger dendritic. The holes present a clear round or oval outline. The ble to reflect the internal defects of aluminum die casting and the inspection suits can be applied to control product quality more precisely. , and shrinkage cavities in the image X-ray real-time-image inspection is a- results are convincing. So the test re-suits can be applied to control product quality more precisely.