PSI - Issue 59

D. Nosov et al. / Procedia Structural Integrity 59 (2024) 656–663 D. Nosov et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 6. Prediction of the type (place) of sample destruction – along the seam or along the HAZ – depending on their annealing modes 1. Preparation of the edges and surface of the tape. Remove protective anti-corrosion and other layers from the surface of the tape to a metallic shine, degrease the surfaces at a distance of at least 20 mm from the edges to be welded. 2. Preheating Tp=450...480ºС. At the time of installation in the welding machine, the temperature of the T P should not be lower than 420 ºС. 3. The quality of assembly. The tape in the clamping jaws of the welding machine must be installed in one plane relative to the surface (longitudinal direction), deplaning in the joint is impenetrable. Control the adjacency of the edges in the transverse direction to ensure the stability of the electrical contact during welding and heat treatment by means of the ASP-1600 welding machine. 4. Welding. The time of transfer and installation of the tape from the heating station to the moment of welding is no more than 20 seconds under normal conditions, at a temperature above 24 ºС. This time can be increased, it is not recommended to perform welding work at a temperature below 16 ºС.