PRODUCTION OF BRONZE-BASED WET FRICTION MATERIAL

摘要

PURPOSE: To obtain the material which has a high open-pore content while retaining practically sufficient strengths and has an excellent energy-absorbing capability and a high coefficient of friction in a good balance. ;CONSTITUTION: This material is produced by press molding a mixture comprising 2-8wt.% Sn powder, 2-10wt.% SiO₂ powder, 18-33wt.% graphite powder (having an average particle size of 20-60μm, a content of particles with particle sizes of 5-100μm of 90wt.% or higher, and a distance between C₀ layers of 0.672nm or lower), 2-8wt.% chaff powder having a particle size of 200 mesh or lower, if necessary 8wt.% or lower Zn powder, and the rest, an electrolytic copper powder, and sintering the resulting molding at 750-850°C under a pressure of 1-10MPa in a reducing or inert atmosphere while keeping the molding in contact with a core material.;COPYRIGHT: (C)1995,JPO