挤压模-建筑铝合金型材(窗用)的模具设计分解.doc

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  Design of extrusion die for aluminum alloy section for windows of buildings Abstract In order to adapt to different regions, different series and different uses of doors ,windows and other architectural structures’ needs, architectural aluminum profiles and the range of specifications is very wide. According to incomplete statistics, the world has been out of the tens of thousands kind of building profiles. Architectural aluminum profiles generally are used by extrusion, and extrusion tooling is great significance to the whole of extrusion process. The consistency of tool and die structure is the basis of achieving any foundation extrusion process. Because the die structure is the key components of passing extrusion pressure and producing metal extrusion; Mold is the essential part of ensuring product’s correct shape, size and precision; The same time, mold is the most important factors to ensure the surface quality of the inner and outer of extrusion product ; The mold can control the mechanical properties and internal organization. Therefore, reasonable extrusion die design is one of the most important assurance of achieving extrusion production high yield, low cost and high quality. This paper discusses the situation and development trend of aluminum extrusion die design, and introduces the steps and key points of extrusion die design. The paper design the structure and size of mold sections’ diversion hole, split bridge, mold cores, welding chamber, the die hole, working part and empty knife. Key Words: Architec