不同成分铝杆的辊模拉拔工艺设计  

Roller Die Drawing Process of Aluminum Rods with Different Compositions

作　　者：董建光 傅珠荣 李锋 沈月明 陈国权 Dong Jianguang;Fu Zhurong;Li Feng;Shen Yueming;Chen Guoquan(Tongling Longfeng New Materials Co.,Ltd.;Shaoxing Tianlong Tin Materials Co.,Ltd.;Shaoxing LIBO Science and Technology Co.,Ltd.)

机构地区：[1]铜陵龙峰新材料有限公司 [2]绍兴市天龙锡材有限公司,浙江绍兴312000 [3]绍兴市力博科技有限公司

出　　处：《特种铸造及有色合金》2021年第6期743-747,共5页Special Casting & Nonferrous Alloys

摘　　要：设计了拉拔不同成分铝线坯用二连式辊模孔型工艺参数,研究了铝线坯的宽展特征。结果表明,铝线坯呈现反张力导致线坯压圆宽展微小的特征,宽展随强度而发生明显变化。在拉力试验机上实测了辊模拉拔力与拉拔模拉拔力的差别,发现辊模拉拔力降幅大于28%,具有明显的节能潜力。改进辊模结构,采用与拉拔模相同的断面减缩率,在同一台水箱拉丝机上拉拔不同成分铝线材,就两者拉拔断线、电流、拉拔油等进行对比。结果表明,多个辊模组合可以连续拉拔不同成分的铝线材,加工硬化不影响拉拔效果,具有节能、环保性佳、辊模配装简单和机件磨损低的优势。The drawing processing parameters of two-joint roller dies for aluminum alloy wires with different compositions were investigated. The spreading characteristics of aluminum wire was tested. The results indicate that the aluminum billet presents inverse tension, leading to the characteristics of tiny spreading, which varies obviously with the strength of the aluminum alloy. The difference of drawing force between drawing die and two-joint roller die was investigated on the tensile testing machine. The results reveal that drawing force of roll die is decreased by more than 28%, showing huge potential of saving energy. The structure of the roll die was modified, and the same section reduction rate as the drawing die was adopted to draw the aluminum wire with different compositions on the same water tank drawing machine.The drawing break line, current, and drawing oil of the two dies were compared systematically. The results demonstrate that aluminum alloy wires with different compositions can be continuously drawn by combination of roller dies, irrespective of the working hardening, which exhibits advantages of energy saving, easy assembling, environmental protection and low wear.

关 键 词：孔型设计 铝线宽展特性 拉拔力 

分 类 号：TG339[金属学及工艺—金属压力加工] TG146.21[一般工业技术—材料科学与工程]