Stabilizing heat treatment method for TP347 thick-wall pipeline

The invention discloses a stabilizing heat treatment method for a TP347 thick-wall pipeline. The stabilizing heat treatment method comprises the following steps of determining a heat treatment process; according to the determined heat treatment process, analyzing the causes of cracking in the stabilizing heat treatment; and carrying out heat treatment construction, including treatment before heattreatment and treatment of a heat treatment implementation process. According to the stabilizing heat treatment method for the TP347 thick-wall pipeline provided by the invention, the residual stressis reduced as much as possible on the basis that the stabilizing heat treatment purpose is achieved, and the stabilizing heat treatment method has important significance in industrial production. According to the stabilizing heat treatment method for the TP347 thick-wall pipeline provided by the invention, tp347 stabilizing heat treatment can be realized, and the inner and outer walls meet the temperature requirement. Acco