挤压模-建筑铝合金型材(窗用)的模具设计

建筑铝合金型材（窗用）的模具设计摘要为了适应不同的地区、不同系列、不同用途的门窗结构以及其他的建筑结构需要，建筑铝合金型材的品种繁多，规格的范围也是十分的宽广。据不完全的统计，世界上已经出现了上万种建筑型材。建筑铝合金型材一般采用挤压的方法得到，而挤压工模具对于实现整个的挤压过程是有着十分重要意义的。工具和模具结构的合理性是实现任何挤压的工艺过程的基础。因为工模具结构是传递挤压力以及使金属产生挤压变形的关键部件；模具是使产品成形，并保证正确的形状、尺寸以及精度的基本部分；同时模具是保证挤压产品的内外表面质量中最重要因素之一；并且在一定程度上，模具可以控制产品的力学性能和内部组织。因此，合理的挤压模具设计可以说是实现挤压生产中高产、低耗、优质的最重要保证之一。本文论述了铝合金挤压模具设计的现状与发展趋势，介绍了挤压模具设计的步骤和关键点。结合型材的特点设计了模具的分流孔、分流桥、模芯、焊合室、模孔、工作带和空刀的结构与尺寸。关键词：建筑铝合金型材；挤压模具设计；平面分流模DesignofextrusiondieforaluminumalloysectionforwindowsofbuildingsAbstractInordertoadapttodifferentregions,differentseriesanddifferentusesofdoors,windowsandotherarchitecturalstructures’needs,architecturalaluminumprofilesandtherangeofspecificationsisverywide.Accordingtoincompletestatistics,theworldhasbeenoutofthetensofthousandskindofbuildingprofiles.Architecturalaluminumprofilesgenerallyareusedbyextrusion,andextrusiontoolingisgreatsignificancetothewholeofextrusionprocess.Theconsistencyoftoolanddiestructureisthebasisofachievinganyfoundationextrusionprocess.Becausethediestructureisthekeycomponentsofpassingextrusionpressureandproducingmetalextrusion;Moldistheessentialpartofensuringproduct’scorrectshape,sizeandprecision;Thesametime,moldisthemostimportantfactorstoensurethesurfacequalityoftheinnerandouterofextrusionproduct;Themoldcancontrolthemechanicalpropertiesandinternalorganization.Therefore,reasonableextrusiondiedesignisoneofthemostimportantassuranceofachievingextrusionproductionhighyield,lowcostandhighquality.Thispaperdiscussesthesituationanddevelopmenttrendofaluminumextrusiondiedesign,andintroducesthestepsandkeypointsofextrusiondiedesign.Thepaperdesignthestructureandsizeofmoldsections’diversionhole,splitbridge,moldcores,weldingchamber,thediehole,workingpartandemptyknife.KeyWords:Architecturalaluminumprofile；Designofextrusiondie；Planarportholedie目录摘要.......................................................................................................................................IAbstract......................................................................................................................................II第一章绪论..............................................................................................................................11.1概述..............................................................................................................................11.2模具在铝合金挤压生产中的重要作用与特殊地位..................................................11.3国内外铝合金挤压模具技术的现状与发展趋势......................................................21.3.1铝合金挤压模具设计的现状.............................................................................21.3.2铝合金挤压模具技术的发展与趋势..................................错误!未定义书签。1.3.3国内外模具设计水平比较.................................................................................71.4建筑型材的模具设计..................................................................................................71.4.1铝合金民用建筑型材的特点.............................................................................71.4.2民用建筑型材模具设计特点.............................................................................81.4.3建筑铝合金型材模具设计重点与难点............................................................8第二章铝型材挤压工艺........................................................................................................102.1铝型材模具的设计原则............................................................................................102.1.1挤压模具设计时应考虑的因素.......................................................................102.1.2模具设计的原则与步骤...................................................................................102.1.3模具设计的技术条件及基本要求...................................................................122.2确定采用平面分流模的原则....................................................................................122.3模具材料的选择........................................................................................................132.3.1产品性能分析...................................................................................................132.3.2挤压模具的工作条件.......................................................................................142.3.3模具材料的合理选择.......................................................................................15第三章铝型材挤压模具设计................................................................................................173.1制品的分析................................................................................................................173.1.1制品尺寸分析..................................................................................................173.1.2制品结构分析..................................................................................................173.2挤压设备的选择........................................................................................................183.2.1挤压系数..........................................................................................................183.2.2填充系数..........................................................................................................193.2.3挤压力的计算..