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本文对高速钢复合轧辊的成分设计进行了探讨;从合金元素偏析和铸造裂纹方面,对轧辊离心铸造过程中的工艺参数进行了分析;并结合高速钢复合轧辊的机械加工质量要求,简述了磨削参数对轧辊表面粗糙度的影响。 相似文献
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简要介绍了宣钢棒线复合线高速钢轧辊的应用情况.通过与合金铸铁轧辊进行比较,采用高速钢轧辊可提高单槽轧制量,减少换辊次数,提高成材率,同时也指出了生产中存在的问题. 相似文献
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高碳高速钢是取代普通耐磨合金制造轧辊的新材质,淬火高速钢辊套硬度高,内孔加工性能差.采用控制辊套内层冷却技术,在热处理条件下,获得了内外层组织和性能呈梯度分布的高速钢复合辊套.利用神经网络对保温板的厚度和导热系数、保温涂料的厚度和导热系数与辊套内层硬度样本集的学习,采用改进的BP网络算法,建立了复合辊套热处理保护工艺人工神经网络模型,具有较高的精度和很好的泛化能力,且运算速度快,可方便用于指导实际生产. 相似文献
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High speedsteel (HSS) ,ischaracterizedbyex cellenthardness ,wearresistance ,and goodredhardness .Recently ,HSSisappliedtomanufacturehotrollingrollstoproducestripsofgoodshapeandsmallcrownwithextendedrollservicelife[1,2 ] .TheHSSisappliedtomanufacturerollcollarfor… 相似文献
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李斌 《金属材料与冶金工程》2004,32(6):14-17
研究了淬火温度、冷却方式、回火温度和回火次数对高碳高钒高速钢轧辊组织和性能的影响.确定了最佳热处理工艺参数。结果表明。盐冷高速钢轧辊具有优良的淬透性。不易出现裂纹.辊面硬度高而且均匀,耐磨性好.和高铬铸铁轧辊相比,高速钢轧辊寿命提高8.4倍。 相似文献
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JIANGZhi-qiang FUHan-guang DINGYu-cheng 《钢铁研究学报(英文版)》2005,12(1):22-27
Therollslikenickelchromiuminfinitechilledcastiron ,bainiticductileiron ,highchromiumcastironandhardalloyrollhavebeeninvestigated[1- 4] .Theformerthreerollsarecost effectiveandhaveashorterservicelife .Forthelatterone ,ithasexcellentwearresistancebutmuchhig… 相似文献
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A new method was developed by a thermal wear machine to evaluate the thermal wear of roils in steel rolling process. The steel strip and rolls were simulated by upper and lower heating disks. The upper heating disk could he kept at a temperature of over 900 ℃ by induction heating. The pressure between the disks as high as 323.2 MPa could be achieved and the slipping rate could be 12. 7 %. The thermal wear of high speed steel (HSS) roll material, the wear rate of the HSS roll, and the SEM morphology of a worn HSS roll surface were investigated. This method was useful and could be employed to simulate friction and wear between strip and roll during the strip rolling process. 相似文献