High-intensity magnetic field multi-layer composite shielding cylinder suitable for underwater environment and manufacturing method of high-intensity magnetic field multi-layer composite shielding cylinder

The invention provides a high-intensity magnetic field multi-layer composite shielding cylinder suitable for an underwater environment and a manufacturing method thereof. The high-intensity magnetic field multi-layer composite shielding cylinder comprises a multi-layer composite cylinder, and the multi-layer composite cylinder comprises a cylinder base material layer, a high-permeability layer, a high-saturation magnetic flux density layer, a high-conductivity layer and a protective layer which are sequentially arranged from inside to outside; a base material layer mounting groove is formed in the barrel base material layer, the high-magnetic-conductivity layer, the high-saturation magnetic flux density layer and the high-conductivity layer are all arranged in the base material layer mounting groove, and any two adjacent layers are connected in an adhesive mode through epoxy glue. The advantages of each layer of shielding material in magnetic field shielding are fully utilized, sensitive ...