Preparation method and device of low-loss soft magnetic strip

• Main Authors: HUO LISHAN, GUO HAI, LIU HAOYUAN
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention provides a preparation method and device of a low-loss soft magnetic strip material, and belongs to the technical field of soft magnetic loss, and the method comprises the following steps: carrying out line etching on at least one side of the surface of the soft magnetic strip material in the strip releasing process of the soft magnetic strip material to form at least one continuous etching pattern. The manufacturing method has the beneficial effects that the continuous etching patterns are formed by performing line etching on the surface of the soft magnetic strip material, and the resistivity of the soft magnetic core is increased, so that the purpose of reducing eddy current loss is achieved; besides, in the heat treatment process of preparing the soft magnetic core, the lines of the continuous etching patterns can be beneficial to release of internal stress, and then the magnetic conductivity of the soft magnetic strip is improved; and meanwhile, due to the continuity of the etching pattern,