MOLD FOR BRAKE PAD FRICTION MATERIAL, MANUFACTURING DEVICE, MANUFACTURING METHOD, PREFORM, AND BRAKE PAD

摘要

A mold (1) for a brake pad friction material, said mold being equipped with a mold member (2) that fits into a mold frame (4) into which a powder material (5) of the brake pad friction material is injected. A pressing surface (3), which forms the region of the surface of the mold member (2) making contact with the powder material (5) injected into the mold frame (4), has a concave shape such that the pressing surface (3) gradually slopes downward from the ends of the pressing surface toward the center part thereof.