降低高速钢轨脱碳层厚度的研究

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基金项目:

教育部世纪人才支持计划(NCET-10-0911)；国家自然科学基金(51164024)

Research on Reducing the Thickness of Decarburized Layer of High-speed Rail

1. Baogang Rail and Beam Plant, Baotou 014010, Inner Mongolia, China;
2. Energy and the Environment Institute, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
3. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-metal Resources, Inner Mongolia University of Science and Technology, Baotou, 041010, Inner Mongolia, China

摘要: 以包钢轨梁厂现场试验为基础,研究了U71Mn高速钢轨脱碳层厚度随加热时间和加热温度的变化关系。结果表明,正常生产时,优化加热制度,保证钢坯出炉温度在1 080~1 100℃,且内外均匀,能够有效地降低脱碳层厚度;同时,待轧15~30 min时,优化待轧制度,均热段温度小于1 200℃,加热一段小于1 230℃,即能随时满足生产要求,又能有效地控制脱碳层厚度。
- 高速钢轨 /
- 脱碳层 /
- 加热时间 /
- 加热温度
Abstract: Based on field tests carried out during the manufacturing of high-speed steel rail in Baotou Rail and Beam Plant,effects of heating time and heating temperature on the thickness of decarburized layer of high-speed U71Mn rail are studied.Results show that in normal production,the thickness of the decarburized layer can be effectively decreased with tapping temperature of billets at 1 080~1 100℃ and uniform billet temperature.In the case of rolling delay for 15~30 min,by controlling the temperature of soaking zone and the temperature of sectionⅠof heating zone lower than 1 200℃ and 1 230℃ respectively,the production requirements can be satisfied and the thickness of the decarburized layer reduced.
- high-speed rail /
- decarburized layer /
- heating time /
- heating temperature