Injection mold is an important process equipment for the production of various industrial products. With the rapid development of plastic industry and the popularization and application of plastic products in aviation, aerospace, electronics, machinery, shipbuilding, automobile and other industrial departments, the requirements of products for molds are becoming higher and higher. How injection molding parts and assembly affect products is almost impossible to obtain and difficult to predict from the outside. In the past, in order to obtain its size information (so as to optimize, upgrade and adjust the die), users had to cut open the parts for inspection and analysis. Cross era progress in R & D and inspection of injection molding molds - full-scale measurement by X-ray tomography measuring machine, but the information of parts may change after damage, and the data obtained from inspection may be inaccurate. Therefore, it may have a significant impact on product production and lead to major quality defects. In the past, Only by virtue of experience and technology can we optimize the research and development of molds. However, for an enterprise, it will be a great hidden danger to quantify an industrial product without standardized process. In the past, users used a three-dimensional image measuring instrument to detect and analyze the size of plastic parts, and fed it back to the mold for mold repair. However, some internal holes cannot be obtained in small size. The user has to break the parts, but after breaking the parts, the product size changes, and the information is very likely to be invalid. How to detect the plastic parts and analyze the problems existing in the mold, so as to ensure the product quality and industry market is a big problem. The solution proposed by Dongding JiuHeng company, tomoscopex ray tomography coordinate measuring machine: Global innovators integrate X-ray into coordinate measuring machine, composite multi-sensor technology, ultra-high precision, ultra-high efficiency and reliable product technology to ensure the accurate detection of internal and external full dimensions of complex plastic parts, accurate adjustment and repair of injection mold and secondary development. The user found that the mold repair can be so simple and accurate from the original three coordinate and imager detection, and even some internal dimensions cannot be detected from the current internal and external dimensions of the X-ray tomography coordinate machine. The repair time is from 1 month to 1 ~ 2 weeks Greatly improve the product mold repair time. Through advanced and scientific management methods, users can have standardized quantitative data even for mass production by using Werth X-ray tomography coordinate machine, so as to reduce the defective rate of products. With the long-term stability of plastic parts, the product quality is improved; In terms of production rhythm, we should quickly push through the old and bring forth the new. So as to realize the competitiveness of the market and consolidate the user's brand.