PROBLEM TO BE SOLVED: To provide a brake shoe provided with a friction material whose frictional coefficient is reduced to a level same as that of a cast iron-based frictional material while securing braking properties under dry or wet conditions, and a method for producing the same.SOLUTION: Provided is a brake shoe 1 provided with a friction material 3 including flake graphite and granular graphite by 20 to 30 vol.% in total. The brake shoe 1 is produced by a production method comprising: a pre-molding step where a friction material composition containing flake graphite and granular graphite by 20 to 30 vol.% in total is press-molded to obtain a pre-molded body; and a heating compression molding step where the pre-molded body is charged to a heat molding die, a base metal is superimposed thereon, and heating compression molding is performed to obtain a brake shoe 1 having a desired shape.SELECTED DRAWING: Figure 1
【課題】ドライ又はウェット条件下での制動性を確保しつつ、鋳鉄系の摩擦材と同じレベルにまで摩擦係数を低下させた摩擦材を備えた制輪子及びその製造方法を提供する。【解決手段】鱗状黒鉛及び粒状黒鉛を合計で20〜30体積%含む摩擦材3を備える制輪子1であり、該制輪子1は、鱗状黒鉛及び粒状黒鉛を合計で20〜30体積%含む摩擦材組成物を加圧成形し、予備成形体を得る予備成形工程と、予備成形体を熱成形型に投入し台金を重ねて加熱圧縮成形し、所望の形状を有する制輪子1を得る加熱圧縮成形工程と、を備える製造方法によって製造される。【選択図】図1
BRAKE SHOE, METHOD FOR PRODUCING THE SAME AND TREAD BRAKE GEAR FOR RAILWAY VEHICLE
制輪子及びその製造方法並びに鉄道車両用踏面ブレーキ装置
2017-02-09
Patent
Elektronische Ressource
Japanisch
IPC: | C09K Materialien für Anwendungen, soweit nicht anderweitig vorgesehen , MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen |