Indian Welding Journal

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Methods for Optimizing the Preheat Temperature in Welding


Affiliations
1 Institute de Soudure, Paris, France
2 Ministry of Public Works, Brussels, Belgium
3 Centre de Recherches Metallurgiques, Liege, Belgium
     

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Several investigations have developed the principle of the control of the weld cycle cooling rate between 300 and 100"C with the aim of decreasing the preheat temperatures generally applied, while avoiding any risk of cold cracking. This control consists in slowing down sufficiently the cooling above 100°C to favour the elimination of diffusible hydrogen.
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Abstract Views: 272

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  • Methods for Optimizing the Preheat Temperature in Welding

Abstract Views: 272  |  PDF Views: 4

Authors

R. Gaillard
Institute de Soudure, Paris, France
S. Debiez
Institute de Soudure, Paris, France
M. Hubert
Ministry of Public Works, Brussels, Belgium
J. Defourny
Centre de Recherches Metallurgiques, Liege, Belgium

Abstract


Several investigations have developed the principle of the control of the weld cycle cooling rate between 300 and 100"C with the aim of decreasing the preheat temperatures generally applied, while avoiding any risk of cold cracking. This control consists in slowing down sufficiently the cooling above 100°C to favour the elimination of diffusible hydrogen.