60Si2MnA弹簧钢热轧盘条脱碳层控制工艺研究
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摘要
为有效控制高铁扣件用60Si2MnA弹簧钢的脱碳,在轧制方坯经过修磨,优化加热炉内各加热段工艺步序、加热温度和控轧控冷工艺的条件下,研究加热炉内时间和方坯涂层,分析不同时间和涂层影响下的脱碳行为。结果表明:加热时间控制在110min以内,60Si2MnA弹簧钢的全脱碳层为0,总脱碳层在0.06mm以内,随着时间的延长,全脱碳和总脱碳深度呈逐渐增加趋势;方坯涂层对脱碳层的控制效果不明显。
In order to effectively control the decarburization of 60 Si2 MnA spring steel for high-speed rail fasteners,the time and billet coating in the furnace were studied,and the decarburization behaviors under the influence of different time and coating was analyzed under the conditions of rolling billet after grinding,optimizing the process sequence of each heating section,heating temperature and controlled rolling and cooling control process.The results showed that the fully decarburization layer of 60 Si2 MnA spring steel was 0 and the total decarburization layer was within 0.06 mm when the holding time was controlled within 110 min.And the fully decarbonization and total decarbonization depth increased gradually with the prolongation of time.The effect of billet coating on decarburization was not obvious.
In order to effectively control the decarburization of 60 Si2 MnA spring steel for high-speed rail fasteners,the time and billet coating in the furnace were studied,and the decarburization behaviors under the influence of different time and coating was analyzed under the conditions of rolling billet after grinding,optimizing the process sequence of each heating section,heating temperature and controlled rolling and cooling control process.The results showed that the fully decarburization layer of 60 Si2 MnA spring steel was 0 and the total decarburization layer was within 0.06 mm when the holding time was controlled within 110 min.And the fully decarbonization and total decarbonization depth increased gradually with the prolongation of time.The effect of billet coating on decarburization was not obvious.
引文
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2 余自若,袁媛,张远庆,等.高速铁路扣件系统弹条疲劳性能研究.铁道学报,2014,36(7):90-95.
3 付成辉,马凤杰.脱碳深度对60SI2CrVAT弹簧钢疲劳性能的影响.重庆科技学院学报(自然科学版),2011,13(6):124-126.
4 温宏权,向顺华.60Si2Mn弹簧钢加热温度对表面脱碳的影响.宝钢技术,2008(3):44-47.
5 薛顺,田俊,成国光,等.新型高铁弹条用弹簧钢的表面脱碳及氧化性能.钢铁研究学报,2013,25(10):47-52.
6 曹安然.弹簧钢防高温氧化脱碳涂层的制备及性能研究.南京航空航天大学,2010:6-11.
2 余自若,袁媛,张远庆,等.高速铁路扣件系统弹条疲劳性能研究.铁道学报,2014,36(7):90-95.
3 付成辉,马凤杰.脱碳深度对60SI2CrVAT弹簧钢疲劳性能的影响.重庆科技学院学报(自然科学版),2011,13(6):124-126.
4 温宏权,向顺华.60Si2Mn弹簧钢加热温度对表面脱碳的影响.宝钢技术,2008(3):44-47.
5 薛顺,田俊,成国光,等.新型高铁弹条用弹簧钢的表面脱碳及氧化性能.钢铁研究学报,2013,25(10):47-52.
6 曹安然.弹簧钢防高温氧化脱碳涂层的制备及性能研究.南京航空航天大学,2010:6-11.