板式移门金属中隔条挤压工艺及模具设计毕业设计说明书

摘要铝合金因质轻、美观、良好的导热性和易加工成复杂的形状,而被广泛地用于生产散热器材。铝合金散热器板式移门金属中隔条主要有三种类型:扁宽形,梳子形或鱼刺形；圆形或椭圆形以及树枝形。与其他铝板式移门金属中隔条比，散热器有其自身的特点：散热片之间距离短,相邻两散热片之间形成一个槽形,其深宽比很大；壁厚差大,散热片的齿部很薄,而其根部的底板厚度大。散热器复杂的截面形状给模具设计、制造和生产带来很大的难度。本文以两种常用散热器为实例，在总结大量散热器模具设计制造经验的基础上，论述了散热片挤压模具设计的步骤和关键点。散热器板式移门金属中隔条挤压模具设计既要保证模具有足够的强度又要平衡金属在模具中的流速。根据散热器的产品图，将板式移门金属中隔条挤压模具设计成平摸，与导流模配合使用。把板式移门金属中隔条挤压模具设计成分假流模，以保证在挤压时的金属流动比平模更均匀，这也是板式移门金属中隔条模具设计的关键点。文中选用4Cr5MoSiV1模具钢作为模具材料，讨论了散热器挤压模具的热处理工艺和散热器的挤压工艺特点。

关键词：散热器  挤压模具设计挤压工艺  铝板式移门金属中隔条

ABSTRACTAluminum alloy, for its light weight, beautiful, good thermal conductivity and easy processing into complex shapes,is widely used to produce cooling equipment. Aluminum radiator profiles are mainly three typesg: flat wide shape, or a fishbone-shaped comb-shaped; round or oval-shaped;and branching shape. Compared with the other aluminum extruded sections radiator has its own characteristics: the distance between the heat sink is short, between two adjacent heat sink to form a trough, and its large aspect ratio; differential wall thickness, heat sink teeth thin, and its roots in the bottom thick. The mold design, manufacturing and production are very difficulty for the complexity of the shape of radiator extruded sections.In this paper, the extruded die design of two common heat sink radiators are discussed in detail on the basis of a lot of experiences in mold design and manufacture for the radiator. Extruded die design has two key parts,the first is sufficient strength to ensure that mold; the second is to balance the flow of metal in the mold. Based on the Product plans of radiators, the radiator comb flat extrusion die are designed to touch, used in conjunction with the diversion mode. The extrusion die is designed radiator sunflowers streaming mode, split mode when the metal flow in the extrusion die is more complex than flat, so how to balance the flow rate of the metal mold is key points for the design of radiator sunflowers. 4Cr5MoSiV1 die steel is used and also the radiator heat treatment process and extruded process are discussed.Keywords: Radiator  Extrude mold design  Extrusion process  Aluminum extruded sections目录摘要 IABSTRACT II第一章  绪论 11.1引言 11.2挤压模具在铝板式移门金属中隔条挤压生产中的重要性 11.3铝板式移门金属中隔条挤压模具技术发展概况 31.4论文的主要研究内容 5第二章  板式移门金属中隔条挤压模具设计技术 62.1板式移门金属中隔条模具的设计原则及步骤 62.1.1挤压模具设计时应考虑的因素 62.1.2模具设计的原则与步骤 62.1.3模具设计的技术条件及基本要求 92.2挤压模典型结构要素的设计 92.2.1模角 92.2.2定径带长度和直径 102.2.3出口直径或出口喇叭锥 102.2.4入口圆角 112.3确定采用平面和分流模的原则 112.4平面分流组合模的特点与结构 122.4.1工作原理与特点 122.4.2分流组合模的结构 132.5模具外形尺寸的确定原则 14第三章  典型散热器挤压模具设计 163.1板式移门金属中隔条的模具设计 163.1.1板式移门金属中隔条产品结构分析 163.1.2板式移门金属中隔条挤压模具整体结构设计方案 173.1.3板式移门金属中隔条分流组合模结构设计 183.2板式移门金属中隔条模具设计 303.2.1板式移门金属中隔条产品结构分析 303.2.2板式移门金属中隔条挤压模具整体结构设计方案 323.2.3板式移门金属中隔条结构设计 32第四章模具的选材与热处理及维护与保养 454.1模具材料的选择 454.1.1模具材料的使用条件 454.1.2模具材料的性能要求 454.1.3挤压工模具选材的特点 464.1.4模具材料的选择 484.2模具材料的热处理 504.2.1退火工艺 504.2.2淬火工艺 504.2.3回火工艺 514.2.4 4Cr5MoSiV1钢的热处理工艺 524.3模具的维护与保养 534.3.1模具的修正 534.3.2模具的合理使用 54第五章  板式移门金属中隔条挤压工艺 555.1板式移门金属中隔条挤压生产工艺流程 555.2挤压工艺的制定 565.2.1挤压方法的选择 565.2.2坯料形状尺寸的确定 565.2.3挤压温度范围 575.2.4流动速度和挤压速度 585.2.5挤压工具的结构 58第六章 结论 59参考文献60致谢 62