Equipment pipeline heat treatment
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Those equipment pipelines in the device require heat treatment – what is the principle and function of heat treatment? I hope to receive guidance from all the teachers!
As the pipeline heats up, it expands due to thermal effects, and this causes changes at the flange connections, leading to leaks; in such cases, thermal treatment is required to tighten these connections! To prevent leakage, the typical preheating temperatures are 150, 250, 350, and 450 degrees
The main function of heat treatment is to remove hydrogen ions from the deposited metal, thereby reducing the likelihood of hydrogen-induced cracking in the weld. It also eliminates residual stresses in the weld and alters the structure of the deposited metal