Friction couple

摘要

A friction couple including a frictionally rubbing member that contains at least one of a binder and a filler, in which the binder and the filler have a modulus of elasticity of 1 GPa or higher and 15 GPa or lower, no softening point or no glass transition point in the range of −50° C. or higher and 200° C. or lower, and a compressive strength of 50 MPa or higher at 25° C. and 25 MPa or higher at 200° C.; and a frictionally rubbed member. The ratio of the maximum value tan δ(Max) to the minimum value tan δ(Min) of the loss tangent tan δ of the frictionally rubbing member obtained through a dynamic viscoelastic measurement performed at a frequency of 0.1 Hz or higher and 20 Hz or lower and in the range of −50° C. or higher and 250° C. or lower after thermoforming is 5 or less.

主权项

1. A friction couple comprising:
a frictionally rubbing member that includes a first material, which includes a binder and a filler, and a second material, which includes a basic material, wherein at least one of the binder and the filler of the first material has a modulus of elasticity of 1 GPa or higher and 15 GPa or lower, no softening point or no glass transition point in the range of −50° C. or higher and 200° C. or lower, and a compressive strength of 50 MPa or higher at 25° C. and 25 MPa or higher at 200° C.; and a frictionally rubbed member, wherein a friction surface of the frictionally rubbing member and a friction surface of the frictionally rubbed member contact each other when the frictionally rubbing member and the frictionally rubbed member are combined with each other, wherein a maximum value tan δ(Max) and a minimum value tan δ(Min) of a loss tangent tan δ of the frictionally rubbing member obtained through a dynamic viscoelastic measurement performed at a frequency of 0.1 Hz or higher and 20 Hz or lower and in the range of −50° C. or higher and 250° C. or lower after thermoforming have a relationship tan δ(Max)/tan δ(Min)≦5, and the first and second materials of the frictionally rubbing member are arranged alternately in a periodic structure so that the friction surface that contacts the frictionally rubbed member includes both of the first and second materials.