Resistor disc for manufacturing brake resistor and manufacturing method of resistor disc

The resistor disc comprises a resistor disc main body, two ends of the resistor disc main body are respectively provided with an upper bending installation connecting plate and a lower bending installation connecting plate, and the upper bending installation connecting plate and the lower bending installation connecting plate are respectively provided with an oval installation hole. The upper bent mounting connecting plate and the lower bent mounting connecting plate are symmetrically folded into a Z-shaped step shape relative to the resistor disc main body; the resistor disc is characterized in that the cross section of the resistor disc main body is an S-shaped arc cross section, main body straight edges are respectively reserved on two outer edges of the S-shaped cross section, and the overall strength of the resistor disc is improved by controlling the radian of the S-shaped cross section and the width of the straight edges. The middle part of the resistor disc is locally provided with the S-shaped sectio