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适合于我国铁路运输繁忙地段铺用的60公斤/米(每米60.3公斤)重型钢轨,已于1976年12月在包头钢铁公司轨梁轧钢厂试制成功。这种重型钢轨的试制成功,为我国铁路提高运输能力,多拉快跑,实现铁路轨道现代化提供了必要的条件。新中国成立后,随着工农业生产的发展,铁路运输任务不断增长。1956年在我国运输较忙的京山线,年通过总重已超过二千万吨公里/公里,开始铺用50公斤/米(实重每
The 60 kg / m (60.3 kg / m) heavy rail that is suitable for the busy railway transportation in our country was successfully trialled in Baotou Iron & Steel Co., Ltd. in December 1976. The successful trial production of heavy rail has provided the necessary conditions for our country’s railways to enhance their transport capacity, run Dorah fast and realize the modernization of railway tracks. After the founding of New China, with the development of industrial and agricultural production, the task of railway transportation has been continuously increasing. In 1956, the busier Jingshan Line was transported in our country. The total weight of the Jingshan Line was over 20 million ton-km / km in the year, and began to be paved with 50 kg / m