Residual air dividing disc for a magnetic assembly of a solenoid valve and method for producing a residual air dividing disc

The invention relates to a residual air gap disc (10; 10a; 10b; 10c) for a magnetic assembly (100) of a solenoid valve, in particular in a fuel injector (1), for adjusting a residual air gap between an end face of a magnetic core (12) and an armature (15; 15a) that actuates a valve member (16) at least indirectly. According to the invention, it is provided that the residual air gap disc (10; 10a; 10b; 10c) is formed at least substantially rigidly and has a base body (21) made of a ferromagnetic material, which is connected to a non-magnetic element (22).