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转速对铜材连续挤压产品组织性能的影响
英文标题:Effects of rotational speed on microstructure and mechanical properties of copper strip during continuous extrusion
作者:陈莉 裴久杨 刘元文 宋宝韫 
单位:大连交通大学 
关键词:铜扁线  连续挤压 转速  再结晶 数值模拟 
分类号:
出版年,卷(期):页码:2014,39(4):54-58
摘要:

 采用数值模拟和工程实验相结合,研究转速对铜材连续挤压成形过程和产品组织性能的影响。通过数值模拟分析了铜扁线连续挤压成形中不同转速下材料和模具温度场分布的规律;通过对工程实验样品进行分析,得到不同转速下产品的微观组织和力学性能。结果表明:随着挤压轮转速的增加,产品出口的温度和腔体内坯料的温度逐渐升高,晶粒回复再结晶程度增加并长大;产品的抗拉强度、硬度和伸长率均随着转速的增高而降低。

 The effects of rotational speed on the microstructure and mechanical properties of copper strip during continuous extrusion were studied using the combination of numerical simulation and engineering test. The temperature distributions of material and die under different rotational speeds during continuous extrusion of copper strip were analyzed by numerical simulation. The microstructure and mechanical properties of products under different speeds were achieved by the analysis of samples from engineering test. The results show that the temperatures of die open and blank in chamber increase with the increased rotational speed of extrusion wheel, and so does the percentage of recovery and recrystallization of grain,even grows up. While the tensile strength, hardness and elongation decrease with the increased rotational speed.

 
基金项目:
国家“十二五”科技支撑计划(2011BAE23B01);国家自然科学基金资助项目(511750);辽宁省教育厅科学研究资助项目(L2012154)
作者简介:
陈莉(1978-),女,博士研究生,讲师
参考文献:

[1]Kim Y H, Cho J R, Jeong H S,et al. A study on optimal design for CONFORM process[J]. Journal of Materials Processing Technology, 1998, 80-81: 671-675.


 

[2]郭华仲,宋宝韫,陈莉.连续挤压杆坯直径的工艺影响研究[J].锻压技术,2010,35(1):138-141.

 

Guo Huazhong, Song Baoyun, Chen Li. Study on process influence on feedstock diameter in continuous extrusion[J]. Forging & Stamping Technology,2010,35(1):138-141.

 

[3]牛玉英,宋宝韫,刘元文,等. 铜扁线生产的连续挤压工艺[J].有色金属,2007,(11):20-22.

 

Niu Yuying, Song Baoyun, Liu Yuanwen, et al. Continuous extrusion technology of producing copper strip[J]. Nonferrous Metals, 2007,(11):20-22.

 

[4]彭光华.绕包铜扁线柔软性影响因素的工艺研究[J].金属加工,2011,(11):57-58.

 

Peng Guanghua. Study of influence factors on copper strip softness[J].Metal Working, 2011,(11):57-58

 

[5]刘元文,宋宝韫.铜扁线连续挤压技术[J].锻压技术,2004,29(4):49-50.

 

Liu Yuanwen, Song Baoyun. Technology of continuous extrusion for rectangular copper wire[J]. Forging & Stamping Technology, 2004,29(4):49-50.

 

[6]Katajarinne T,Manninen  T,Ramsay  P. Numerical simulation of flash formation in continuous rotary extrusion of copper[J]. Journal of Materials Processing Technology, 2006, 177: 604-607.

 

[7]陈旭,运新兵,赵颖,等.分流模结构对连续挤压扩展成形的影响[J].塑性工程学报,2010,17(2):68-72.

 

Chen Xu, Yun Xinbing, Zhao Ying, et al. Effect of the porthole structure on extending forming of copper during continuous extrusion[J]. Journal of Plasticity Engineering, 2010,17(2):68-72.

 

[8]董少峥,陈莉,李冰,等.模腔通道长度对铜材连续挤压产品组织性能的影响[J].塑性工程学报,2013,20(3):26-30.

 

Dong Shaozheng, Chen Li, Li Bing,et al. Effects of die-chamber channel length on the microstructure and mechanical properties of copper strip during continuous extrusion [J]. Journal of Plasticity Engineering, 2013,20(3):26-30.

 

[9]裴久杨,宋宝韫.基于滑移线法的连续挤压腔体入口结构优化[J].有色金属加工,2007,(5):38-41.

 

Pei Jiuyang, Song Baoyun. Structure optimization of continuous extrusion chambers entrance based on slip-line method[J]. Nonferrous Metals Processing, 2007,(5): 38-41.

 

[10]崔忠圻.金属学与热处理[M].北京:机械工业出版社,2007.

 

Cui Zhongqi. Metal Science and Heat Treatment[M]. Beijing: China Machine Press, 2007.
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