Optimization design of anti-distortion tooling for local heat  treatment of large welded vessels

doi:10.13251/j.issn.0254-6051.2022.03.043

Abstract

Abstract: Local heat treatment distortion of large pressure vessel was simulated by finite element method. Based on the maximum distortion of heat treatment, the optimal size of anti-distortion tooling was preliminarily designed. The influence of different diameters and wall thicknesses on local heat treatment distortion of cylinder was analyzed, and the optimal number of anti-distortion tooling suitable for different cylinder sizes was obtained. The results show that 0.2 m of supporting platform width and ø4 cm of support column diameter are the best anti-distortion tooling dimensions. The larger cylinder diameter is, the larger heat treatment distortion is. The thicker cylinder wall is, the smaller heat treatment distortion is. The more the number of anti-distortion tooling, the smaller heat treatment distortion.

Key words: anti-distortion tooling, pressure vessels, local heat treatment, heat treatment distortion

CLC Number:

TG404

Long Liang, Hu Qixian, Luo Yun, Zheng Hongxiang, Wang Yujie. Optimization design of anti-distortion tooling for local heat treatment of large welded vessels[J]. Heat Treatment of Metals, 2022, 47(3): 234-238.

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Optimization design of anti-distortion tooling for local heat treatment of large welded vessels

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