【作者】 李占青；

【导师】 许树勤；

【作者基本信息】 太原理工大学 ， 材料加工工程， 2003， 硕士

【摘要】 本文在对太原铝厂电工铝杆生产工艺进行了深入细致的调查的基础上，针对在实际生产中的延伸率、抗拉强度和导电率不能兼顾的情况和一些存在的铝杆质量问题进行了分析。综合分析了化学成分、工艺参数、孔型设计及金相组织对其综合性能的影响。利用Gleeble—1500热力模拟试验机对电工铝杆所用材料——工业纯铝进行了热力模拟实验，分析了变形温度、变形程度、变形速度对流动应力的影响，建立了一种新的流动应力的数学模型，并且对工业纯铝的回复、再结晶与变形温度、变形程度及变形速度之间的关系进行了分析。对电工铝杆生产所用的设备——三辊Y型轧机进行了研究，Y型三辊连续轧制是上世纪五十年代初研究成功的一种新型轧制方式，并且在中国也得到迅速的发展。三辊轧制具有变形效率高、可连续生产、成材率高、产品综合性能优良等特点。但是三辊轧制与二辊轧制相比，金属的三维变形比较复杂，各种力能参数的测定较为困难，同时这种连轧方式的理论分析还没有很好的发展起来。本论文详细研究了电工铝杆的三辊连轧过程，分析了连轧过程中的工艺参数和孔型设计的特点，着重分析了三辊Y型轧机孔型设计对生产工艺和产品质量的重要影响，并且用VB6.0编制了计算机辅助孔型设计程序，使孔型设计更加合理，高效。这就给生产实践中的技术革新打下了基础并且提供了有利的条件。更多还原

【Abstract】 In this paper, the effects of the chemical composition, the technical parameters, microstructure and rolling design on the mechanical and electrical properties of pure aluminum wire rod are synthetically analyzed in the foundation of carrying through investigating practical production in-depth in TaiYuan aluminum factory, aiming at existent technical difficulty and some quality problem in the practical production. Byusing Gleeble-1500 thermo mechanical simulator, compressed test of purealuminum are made in certain temperature, at certain strain rate and strain. The mathematical models describing the relation among the flow stress and the deformed temperature, strain rate and strain are established and the relation among the recovery, the recrystallization of pure aluminum and the deformed temperature, strain rate and strain are analyzed. The machine used to produce aluminum wire rod - three rollers Y-type rolling mill are researched. This kind of rolling mode has many advantages, for example, high distortion efficiency, continuous production, high rate of finished product and good general performance. Through studying the three-roll machine, the important effect of the roller design on the production techniques is analyzed. And the computer aided roller design program has been worked out. With the program, the roller design may be in reason and become high efficiency. All these work can make a foundation and provide advantageous condition for the production technology renovatation.更多还原