Product Name: Long Service Life Composite Brake Shoes for Railway Wagon Cars Type: Train Brake Certification: ISO14001, ISO9001, Crcc Customized: Customized Friction Body: Polymer Material Steel Plate: Q235A Steel Thickness: 45~50mm Width: 50~85mm Length: 300~400mm Outer Arc: R450mm Surface Treatment: Painting Process: Cold + Hot Pressing Axle Load: Max. 25t Trademark: QL Transport Package: W/CS Specification: Subject to design drawing Origin: China HS Code: 8607210000 Product Description 1. Features:a.The adjustablerange of friction coefficient , it is applicable to various running speeds.b.Thecomposite brake shoe provideshigh abrasion resistance and long service life, so as to greatly reduce the workload of brake shoe replacement and save the costs of maintenance and operation.c. Without sparks when braking, it can avoid the iron powders generated during wear-and-tear andrelieve the impacts on electric equipment.d. It is of light weight, so it can be replaced conveniently and easily.e.It causessmall abrasion and no thermal crack on the tread.f. Thelower friction coefficient at high speed maintains sufficient braking force, improves the braking performance and shortens the braking distance.g. The friction coefficient index can be fully increased. The composite brake shoe is combined with the small-diameter braking cylinder to save compressed air. When braking on long heavy down grade, it may shorten the air recharge time, so as to improve the wagon safety when running on heavy down grade.h.The composite brake shoe won't result in rough tread, so it could reduce the noise level by 8~10dB.i. Compliance with Standard TB/T2403.2. Application: Applicable for freight rolling stock speed at 120km/h, and axle load below 25t.3. Technical Specification: PerformanceUnitIndexCompression strengthMpa≥25Compression modulusMpa≤1.3*103Bending strengthMpa≥8Impact strengthkj/m2≥3.0Rockwell hardnessHRR≤100Densityg/m3±5% deviation from the nominal valueSoluble content of acetone%≤5Shear strength between friction body and steel back plateMpa≥1.20Tensile force of friction body and steel back plateKN≥154. Product & Workshop:Product Workshop5. Some Production Equipments & Testers:Pressing MachineMagnetic Particle Testing MachineTemperature & Humidity ChamberElectronic Universal Testing Machine Thermal Gravimetric Analyzer