LAMINATED CORE HAVING A SOFT MAGNETIC MATERIAL AND METHOD FOR JOINING CORE SHEETS IN A BONDED MANNER TO FORM A SOFT-MAGNETIC LAMINATED CORE

摘要

The invention relates to a laminated core (1) having a soft magnetic material (3) and to a method for joining core sheets (4) in a bonded manner to form a soft-magnetic laminated core (1). The laminated core (1) comprises core sheets (4) made of soft-magnetic plates (5), which form a core sheet stack (6). The core sheet stack (6) comprises intermediate layers (7) between the core sheets (4). The intermediate layers (7) comprise a cured adhesive (8) introduced into intermediate spaces between the core sheets (4) in the state of low viscosity. For this purpose, the core sheets (4) comprise a finally annealed crystalline CoFe alloy, an adhesive-wettable top side (9), and an adhesive-wettable bottom side (10). The core sheets (4) form a dimensionally accurate laminated core (1) with the intermediate layers (7). The laminated core (1) has a substantially adhesive-free contour (12) made of outline surfaces (11) of the core sheets (4). The adhesive (8) is solvent-free in the state of low viscosity.