Research on Laser and Welding Process of Austenitic Stainless Steel T-joint
The spent fuel storage grid is installed in the spent fuel storage pool of the nuclear power plant fuel plant,which is used to store the spent fuel assemblies that reach the specified limit.boron and aluminum spent fuel storage racks are new storage rack in nuclear power plant.each rack is composed of vertical square storage cells arranged in a certain spacing.the storage sleeves are connected by thin Austenitic stainless steel welding seams.in this paper,laser bean welding technique is used to weld the T-joints of thin plates between storage casings.the laser beam welding process parameters optimized on the basis of acceptance test of laser beam welding equipment were used to weld the jointed specimen and the simulated specimen.at the same time,the adaptability of the laser beam welding head and the matching equipment to the product structure is verified,especially the weld formation,position and welding stability of the simulative specimen which has the same product structure.
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