Q345R双层堆焊E309L-16的焊接工艺和性能研究

Study on Welding Process and Performance of Q345R Double-layer Overlay Welding E309L-16

在催化裂化装置稳定塔产品研发过程中,为了确保压力容器能够安全、平稳、长周期地运行,按照产品技术要求进行了相关焊接工艺试验。采用手工电弧焊(SMAW)对Q345R钢板表面进行局部双层堆焊E309L-16,并按照产品技术要求开展了相关焊接工艺试验。试验结果表明,堆焊试板在(610±10)℃的去应力退火后,其堆焊层的力学性能均能满足产品技术条件要求。

During the research and development of stabilizer products of catalytic cracking unit,this paper carries out relevant welding process tests according to product technical requirements to ensure safe,stable and long-term operation of pressure vessels.Manual arc welding(SMAW)is used to conduct partial double-layer surfacing E309L-16 on the surface of Q345R steel plate,and relevant welding process tests are carried out according to the product technical requirements.The results show that the mechanical properties of the surfacing layer of the surfacing test plate after stress relief annealing at(610±10)℃ could meet the product technical requirements.