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销套,是铁路机客货车辆上用量很大的标准配件,其形状尺寸如图1所示。铁道部颂发的销套套现行技术要求为: (1)采用渗碳工艺时渗碳层深度为0.5～1.0毫米。 (2)采用整体淬火时硬度为HRC 38～50。销套的工作条件比较恶劣,它承受磨擦、挤压、弯曲、冲击等多种载荷的复杂作用。其主要的失效形式为内孔表面磨损,其次为破碎。根据销套的部颁技术标准、工作条件及
Pin sets, railroad passenger and freight vehicles is a large amount of standard accessories, the shape and size shown in Figure 1. Song of the Ministry of Railways issued a set of existing sets of current technical requirements: (1) carburizing process using carburizing layer depth of 0.5 to 1.0 mm. (2) The overall hardness of HRC 38 ~ 50 when quenching. Pin sets of poor working conditions, it withstands the friction, extrusion, bending, impact and other complex loads. The main form of failure of the inner bore surface wear, followed by broken. According to the ministerial standards set by the sales, working conditions and