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标准钢铁公司(Standard Steel)新S型车轮的设计原则是:当制动负荷很大而轮辋过热时,轮辋可以不受阻碍地膨胀。在过去几年中,标准钢铁公司曾花费大量金钱努力改进炼钢技术,改善钢的冶炼质量,减少消耗,提高生产率和提高最终产品的质量。供铁道车辆使用的S型车轮的研制成功是这方面的成果之一。这种车轮是为帮助铁路部门克服随着载重增加和速度提高而日益严重的热裂纹问题而设计的。正如该公司总经理J.E.Fogarty指出的,所有车轮的轮辋一般都显示出环向压直力。这就有利于使轮辋表面的小裂纹或划痕
The design principle of Standard Steel’s new S-type wheels is that the rim can expand unimpeded when the braking load is heavy and the rim overheats. In the past few years, standard steel companies have spent a lot of money trying to improve steelmaking technology, improve the quality of steel smelting, reduce consumption, increase productivity and improve the quality of the final product. The successful development of S-type wheels for railway vehicles is one of the achievements in this area. This wheel is designed to help the railway sector overcome the growing problem of hot cracks as loading and speed increase. As J.E.Fogarty, managing director of the company, points out, the wheel rims of all wheels generally show hoop pressure. This facilitates small cracks or scratches on the rim surface