| 摘要 |
PURPOSE:To obtain a vibration damping plate with high operating temperature limit and excellent brake noise suppressing property by a method wherein said plate is molded by powder metallurgical method with graphite and mica flour as damping material, glass fiber as reinforcement and lead powder as binder. CONSTITUTION:As graphite, mica, glass and lead are employed as components, the resistance against the heat released at braking can be made excellent and yet the operating temperature limit can be raised up to the vicinity of the melting point of lead (327 deg.C), resulting in remarkably improve the performance of a vibration damping plate. Furthermore, pores containd within the plate during the process of forming the plate by sintering in powder metallurgical method improve the physical properties of the vibration damping plate so as to be able to enhance the effect of suppress brake noise. |
