FRICTION MATERIAL COMPOSITION, FRICTION MATERIAL AND MANUFACTURING METHOD THEREFOR

• Main Authors: IWAO YUJI, MIYAJI MOTOYUKI
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2016
• Subjects: ADHESIVES; BLASTING; BRAKES; CHEMISTRY; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; DYES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a friction material capable of improving abnormal sound property under moisture absorption condition without deteriorating properties such as fading resistance.SOLUTION: There is provided a friction material composition having 5 to 30 mass% of spherical and porous alkali metal salt with an average particle diameter of 20 to 240 μm. In the friction material composition, the alkali metal salt comprises a sintered body to which a plurality of particles of 100 nm order are fused and is potassium titanate.SELECTED DRAWING: Figure 1 【課題】耐フェード性などの特性を損なうことなく、吸湿状態における異音特性の改善を可能とする摩擦材の提供。【解決手段】平均粒径が２０〜２４０μｍであり、球状かつ多孔質のアルカリ金属塩を５〜３０質量％含有する摩擦材組成物。前記アルカリ金属塩は、１００ｎｍオーダーの粒子が複数融着した焼結体からなり、チタン酸カリウムである摩擦材組成物。【選択図】図１