清扫刷用扁丝制备工艺的研究
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摘要
将φ6.5 mm的60钢盘条经表面处理后冷拉拔成φ1.8 mm的半成品钢丝,分别采用直接冷轧三连轧和先经过连续炉750℃去应力退火后再冷轧三连轧的两种工艺得到截面尺寸为0.75 mm×3.15 mm与0.65 mm×3.47 mm的扁丝,然后经油淬火回火制得成品。通过力学性能测试和金相组织观察,分析了采用两种工艺制备一定尺寸范围内扁丝的可能性。结果表明:制备工艺选择750℃去应力退火后冷轧三连轧再油淬火回火。
The 60 steel wire rod of φ6.5 mm after surface treatment was cold-drawn into semi-finished steel wire of φ1.8 mm. The flat filaments with cross section sizes of 0.75 mm×3.15 mm and 0.65 mm×3.47 mm were obtained respectively by using three-stand continuous cold rolling and three-stand continuous cold rolling after stress-relief annealing at 750 ℃ in continuous furnace. And then,after oil-quenching and tempering, the finished product can be made. By means of mechanical properties test and metallographic observation, the possibility of preparing the flat wire in a certain size range by the two processes was analyzed. The results show that the preparation process is stress-relief annealing at 750 ℃, three-stand continuous cold rolling, and oil quenching and tempering.
The 60 steel wire rod of φ6.5 mm after surface treatment was cold-drawn into semi-finished steel wire of φ1.8 mm. The flat filaments with cross section sizes of 0.75 mm×3.15 mm and 0.65 mm×3.47 mm were obtained respectively by using three-stand continuous cold rolling and three-stand continuous cold rolling after stress-relief annealing at 750 ℃ in continuous furnace. And then,after oil-quenching and tempering, the finished product can be made. By means of mechanical properties test and metallographic observation, the possibility of preparing the flat wire in a certain size range by the two processes was analyzed. The results show that the preparation process is stress-relief annealing at 750 ℃, three-stand continuous cold rolling, and oil quenching and tempering.
引文
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[2]徐萍,王伯健,刘世锋.扁钢丝轧制过程中的应变分析[J].锻压技术,2009,34(3):96-99.
[3]谭树青,王经涛.金属塑性加工物理基础[M].西安:陕西科学技术出版社,1996:33-36.
[4]Kazeminezhad M,Karimi Taheri A.The prediction of macroscopic shear bands in flat rolled wire using the finite and slab elementmethod[J].MaterialsLetters,2006,60:3265-3268.
[5]Kazeminezhad M,Karimi Taheri A.Deformation inhomogeneity in flattened copper wire[J].Materials&Design,2007,28:2047-2053.
[6]戴宝昌.重要用途线材制品生产新技术[M].北京:冶金工业出版社,2001:196-199.
[7]邢献强,董峰.淬回火弹簧钢丝生产现状[J].金属制品,2012,38(5):9-12.
[8]邢献强.淬回火弹簧钢丝产业发展“十二五”展望[J].金属制品,2011,37(4):39-41.
[9]韩伟旗,张素萍,郑永瑞.轿车悬架用弹簧钢线材的生产实践[J].金属制品,2009,35(5):31-33.
[10]杨振涛,顾金其.油淬火回火弹簧钢丝生产技术现状及发展方向[J].宝钢技术,2005(5):22-25.
[11]徐效谦,阴绍芬.特殊钢钢丝[M].北京:冶金工业出版社,2005:267-290.
[12]葛潇琛,王伯健.刷用油淬火回火扁钢丝的硬度分析[J].金属热处理,2015,40(1):201-203.