模角变化对铝包钢丝连续包覆过程的影响  

Research on Processing Aluminum Cladding Steel Wires under Different Die Angle

作　　者：孙印建 樊志新[1] 孙海洋[1] 董磊[1] 

机构地区：[1]大连交通大学连续挤压教育部工程研究中心,辽宁大连116028

出　　处：《大连交通大学学报》2015年第5期79-83,共5页Journal of Dalian Jiaotong University

摘　　要：通过研究模角的变化,了解其对金属的流动规律和变形温度的影响,分析其对挤压轮、包覆模等关键零部件使用寿命的影响,为提高铝包钢丝的产品质量提供重要的参考.结果表明,模角20°时,流速比较均匀,出模口处温度高,有利于包覆;静水压力和钢丝径向载荷较大,包覆质量较好;挤压轮扭矩和包覆模具所受载荷较小,能够提高其使用寿命.所以包覆模角20°为最优角度,与工程试验验证相符合.Though the change of die angle, the influence of metal flow law and deformation temperature is studied, and the influence of the service life is analyzed through extrusion wheel, cladding mold etc the key parts, which provides important reference for improving the quality of products of cladding ACS wires. The results in- dicate that when the die angle is 20°, the flow rate is relatively uniform, and the outlet of die have a higher temperature which benefits to cladding. If the hydrostatic pressure and steel wire radial load is bigger, the cladding quality is better. The small extrusion wheel torque and the die load can improve its service life. So 20° die angle is the most reasonable angle which is in accordance with the engineering test.

关 键 词：铝包钢丝 连续包覆 模角 

分 类 号：TG174.4[金属学及工艺—金属表面处理]