Method for inspection the surface quality parameters of pressure vessel welds

Pu Liao; Guixiong Liu; Ningxiang Yang

doi:10.1117/12.2655004

28 September 2022 Method for inspection the surface quality parameters of pressure vessel welds

Pu Liao, Guixiong Liu, Ningxiang Yang

Proceedings Volume 12339, Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022); 123390G (2022) https://doi.org/10.1117/12.2655004
Event: Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022), 2022, Chendu, China

Abstract

The surface quality inspection of pressure vessel surface welds was an important part of the normative inspection. First this article analysed the current welding seam surface parameter inspection methods and found out that the parameter measurement index defined by the standard does not mention the coexistence of multiple defect parameters. Then we studied the feature segmentation method of the single quality parameter of the pressure vessel longitudinal weld and girth weld under the coexistence of multiple defect parameters, including the characterization analysis of order quality parameters for the coexistence of multiple defects on the surface of pressure vessel longitudinal welds, and the calculation index of order quality based on the coexistence of multiple defects on the surface of pressure vessel welds based on parameter segmentation, extend the standard definition of pressure vessel longitudinal and girth weld parameter measurement indicators to multi-parameter coexistence. The proposed detection index for the single quality parameter of the weld under the coexistence of multiple defect parameters can better reflect the actual appearance of the weld surface of the pressure vessel, and has the characteristics of good applicability and clear measurement indicators.

Citation Download Citation

Pu Liao, Guixiong Liu, and Ningxiang Yang "Method for inspection the surface quality parameters of pressure vessel welds", Proc. SPIE 12339, Second International Conference on Cloud Computing and Mechatronic Engineering (I3CME 2022), 123390G (28 September 2022); https://doi.org/10.1117/12.2655004

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KEYWORDS

Inspection

Feature extraction

Metals

Active vision

CCD cameras

Image quality

Optical inspection

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