PUNCHABLE CARBON/CARBON COMPOSITE PLATE AND PROCESS FOR PRODUCING FRICTION PLATE FOR MULTIPLATE WET CLUTCH

摘要

With respect to punchable carbon/carbon composite plate (1), there are provided one having a porosity (P) satisfying P >= 20% and subjected to punching in anhydrous condition and another having a porosity (P) satisfying P >= 10% and subjected to punching in hydrous condition. By virtue of these, a sound plate member can be obtained by punching.