Mr. Keqin Ding Profile

Keqin Ding

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Proceedings Article | 15 March 2024 Paper

Research on residual stress detection and evaluation methods for lifting equipment based on magnetic anisotropy detection technology

Li Chen, Yanpeng Feng, Keqin Ding

Proceedings Volume 13079, 1307909 (2024) https://doi.org/10.1117/12.3015413

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The residual stress magnetic measurement method is a new non-destructive testing method developed in recent years. This article studies the magnetic properties of ferromagnetic materials and the principle of stress relationship, develops a nine pole residual stress magnetic measurement instrument, and conducts practical engineering testing of residual stress in high-risk and crack prone areas of lifting equipment. A safety evaluation method for lifting equipment that considers both residual stress and working stress is proposed. The engineering application of residual stress detection in lifting equipment shows that the magnetic anisotropy detection method for residual stress is more direct, reasonable, fast, and convenient. The safety evaluation of lifting equipment needs to consider the impact of residual stress, and the safety evaluation of lifting equipment considering the impact of residual stress is more safe and scientific.

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