| abstract |
The invention relates to a friction brake disc for a marine electromagnetic clutch motor and a method for preparing a friction drag material layer of the friction brake disc. The friction brake disc has the characteristic that friction braking torque is large and stable, and the method has the characteristics of simple process, convenience in manufacture and low cost. The friction brake disc for the marine electromagnetic clutch motor comprises a brake disc framework and the friction drag material layer; raw materials contained in the friction drag material layer are polyimide fibers subjected to surface treatment, Kevlar chopped fibers subjected to surface treatment and the like. The method for preparing the friction drag material layer of the friction brake disc comprises the following steps of (1) weighing the raw materials for standby use according to a formula; (2) putting the raw materials into a high speed blender mixer, blending for 3 to 5 minutes, and taking out for standby use; (3) granulating, and controlling the grain size of 5-10 meshes; (4) performing compression molding; (5) spraying a protective coating on the surface. |