Method for identifying inclusions in special powder material based on digital DR imaging technology

Abstract

The invention provides a method for identifying inclusions in a special powder material based on a digital radiography (DR) imaging technology, which comprises the following steps of: S1, packaging the special powder material in a powder container in a granulation glove box protected by an argon atmosphere, and sending the powder container out of the granulation glove box; s2, imaging the powder container filled with the special powder material by adopting an imaging system to obtain a DR (Digital Radiography) image; s3, adjusting an image gray value range to identify an image quality indicator hole, and identifying inclusions according to the gray difference of the local area of the image; and S4, carrying out size measurement and volume equivalent calculation on the inclusions, and sending the powder container back to the granulation glove box to complete quantitative detection of the inclusions. According to the method for identifying the inclusions in the special powder material based on the digital DR imaging technology, quantitative detection of the inclusions in the special powder material is achieved, and the quality of the special powder material is guaranteed.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing methods of digital DR imaging technology, in particular to a method for identifying inclusions in special powder materials based on digital DR imaging technology. Background technique [0002] The special powder material is gray-white material with lively chemical properties. It is protected by argon atmosphere for a long time. 3 , the bulk density of special powder materials is less than 0.4g / cm 3 , In the granulation process of special powder materials, inclusions will inevitably be introduced. The size and content of inclusions (the size of the long side of the inclusions < 1.0mm, the volume ratio of the inclusions ≤ 0.07%) is the key to the special powder materials. Therefore, effective detection methods must be adopted to achieve quantitative detection of inclusions and ensure the inclusion content in special powder materials. [0003] For the detection of inclusions in p...

AI Technical Summary

Problems solved by technology

[0003] For the detection of inclusions in powder materials, the visual detection method is widely used. The visual detection method is suitable for the detection of inclusions with a large color difference from powder materials. At the same time, it also has a certain detection ability for large-size inclusions, but The efficiency of visual detection method is low, and it cannot identify inclusions with small size and color close to powder materials, and relies heavily on manual detection, resulting in uncertainty of detection results. The detection is difficult in the protected glove box. During the detection process, the material is artificially turned over to make the detection random. At the same time, it is difficult to realize the quantitative detection of inclusions by visual detection. Therefore, the visual detection method has a large quality risk and is not suitable for Quantitative detection of inclusions in special powder materials

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