|Package||Bubble Wrap, Carton, Wooden Case, Pallet|
● Part drawing
● Casting process drawing
● Raw material
● Modeling and core making
● Melting and pouring
● Cleaning and inspection
The product structure is asymmetrical, or the wall thickness difference is big, when both sides contract deformation
The product is pulled and deformed when it is unmoulded
The time of mold opening is too short, and the product will be deformed in the process of placing after taking out
Deformation of the die itself
Deformation castings are generally long and thin, which can be effectively improved by extending the mold opening time, placing them smoothly, or adding reinforcing bars. For the deformation of the mold itself, only molds can be repaired, or moulding can be improved after cooling.
Nondestructive testing——X-ray detection
In X-ray inspection, X rays or gamma rays are generally used as the ray source, so equipment and other ancillary facilities that produce rays are needed. When the workpiece is exposed to the radiation field, the radiation intensity of the rays will be affected by the internal defects of the casting. The radiation intensity emitted through the casting varies locally with the size and nature of the defect, forming a radiographic image of the defect, which can be recorded by the radiographic film, or observed by the fluorescence screen in real time, or detected by the radiation counter. Which record by ray film imaging method is the most commonly used method, known as the radiographic inspection, radiographic reflected defect image is intuitive, defect shape, size, quantity, plane position and distribution can be presented, only defect depth generally cannot be reflected, need to take special measures and calculations to determine. At present, the application of X-ray computed tomography (ct) is emerging. However, this new technology represents the future development direction of high definition X-ray detection technology. In addition, using a micro-focus X-ray system that approximates a point source can actually eliminate the fuzzy edges generated by a larger focus device, resulting in a clearer image contour. Digital image system can improve the signal to noise ratio of image and further improve the image clarity.
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