挤出成型工艺毕业论文

挤出发泡聚苯乙烯防水隔板工艺及车间设计The Technology and Workshop Design of Extruded Polystyrene(XPS) Waterproof Clapboard摘要Abstract挤塑聚苯乙烯泡沫塑料（XPS）是以聚苯乙烯树脂或其共聚物为主要成份，添加发泡剂和相关助剂，通过加热挤塑而制得的具有闭孔结构的硬质泡沫塑料。它在世界上得到了广泛的使用。本课题主要设计了挤出发泡聚苯乙烯防水隔板生产工艺。Extruded polystyrene (XPS) is a rigid foam with closed poresstructure made by heating and extruded forming process, using polystyrene resinor its copolymer as main ingredients, and adding foaming agent and otherrelevant auxiliaries. XPS has been widely used in the world. This topic ismainly focused on the design of manufacturing process of extruded foaming XPSwaterproof clapboard.本文是通过对PS材料性质的了解和分析，利用PS的各种优良性能，对生产量为2万m3/年的挤出发泡聚苯乙烯防水隔板成型工艺的设计。Through the comprehension and analysis of polystyrene (PS),this article proposes an extruded foaming process design for the production of XPSwaterproof clapboard with the capacity of 20,000 m3/year, using the various superiorperformances of PS.详细叙述了各个阶段的设计，包括：XPS的发展形势及应用、挤出成型工艺概述、选料与配方设计、生产工艺流程的确定、物料衡算与热量衡算、设备选型与计算、车间管理与生产组织等。It describes the design in detail at each stage, including thedevelopment and application of XPS, overview of the extruded molding process,material selection and compound design, confirmation of manufacturing process, materialbalance, heat balance, equipment selection and calculation, workshop managementand production organization etc.并且对挤出机等型号的设备进行了明确的计算，对挤出机常见的故障做出了解释。计算了工艺过程中物料衡算和热量衡算。另外对废料的处理提出了解决方案，最后对车间管理和生产组织、工程经济概算进行了规划。Moreover, it reports clear-cut reckon on the types of equipmentsuch as the extruder, explains the common faults, and calculates the chemicalcompound balance and heat balance in the process. It further proposes asolution for waste disposal, and finally makes a planning for workshopmanagement, production organization and project cost estimate.关键词：PS，XPS，挤出发泡，工艺流程，设计Keywords: PS, XPS, extruded polystyrene, extruded foaming, technology, design

一、工具不同

1、注射成型：主要的工具为注塑机。

2、挤出成型：主要的工具为非橡胶挤出机。

3、塑压成型：主要的工具为蒸压型半水石膏模具。

二、过程不同

1、注射成型：塑料在注塑机加热料筒中塑化后，由柱塞或往复螺杆注射到闭合模具的模腔中形成制品的塑料加工方法。

2、挤出成型：在非橡胶挤出机加工中利用液压机压力于模具本身的挤出称压出。

3、塑压成型：将可塑泥料放在模型内在常温下压制成坯的一种成型方法。

三、工艺特点不同

1、注射成型：生产效率高，用于注塑的物料须有良好流动性

2、挤出成型：低成本、适应面宽等。

3、塑压成型：设备结构简单，操作方便。

参考资料来源：

百度百科-注射成型

百度百科-挤出成型

百度百科-塑压成型

制品一般考虑成型稳定，光泽度，透明度，厚度均匀等。在生产过程中，往往是温度，剪切速度和被压等对其制品有一定的影响。然后是有什么具体的问题，在针对性的解决。

主要考虑以下条件：第一：冷却循环水的流量及水温；第二：三辊压光辊的亮度，最好是镜面辊。

挤出发泡聚苯乙烯防水隔板工艺及车间设计The Process and Workshop Design of Extruded Polystyrene (XPS) Waterproof Baffle Plate摘要Abstract挤塑聚苯乙烯泡沫塑料（XPS）是以聚苯乙烯树脂或其共聚物为主要成份，添加发泡剂和相关助剂，通过加热挤塑而制得的具有闭孔结构的硬质泡沫塑料。它在世界上得到了广泛的使用。本课题主要设计了挤出发泡聚苯乙烯防水隔板生产工艺。Extruded polystyrene (XPS) is a rigid foam with closed pores made by heating and extrusion using polystyrene resin or its copolymer as main ingredients, and adding foaming agent and other relevant auxiliaries. It has been widely used in the world. This project/task is mainly focused on the design of production process of extruded polystyrene (XPS) waterproof baffle plate.本文是通过对PS材料性质的了解和分析，利用PS的各种优良性能，对生产量为2万m3/年的挤出发泡聚苯乙烯防水隔板成型工艺的设计。After understanding and analyzing the properties of PS, this paper proposed a forming process design for the production of extruded polystyrene (XPS) waterproof baffle plate with a capacity of 20000 m3/year using the superior performances of PS,详细叙述了各个阶段的设计，包括：XPS的发展形势及应用、挤出成型工艺概述、选料与配方设计、生产工艺流程的确定、物料衡算与热量衡算、设备选型与计算、车间管理与生产组织等。It described the design in detail at various stages, including the development and application of XPS, overview of the extrusion forming process, material selection and compound design, determination of production process, material balance and heat balance, equipment selection and computation, workshop management and production organization etc.并且对挤出机等型号的设备进行了明确的计算，对挤出机常见的故障做出了解释。计算了工艺过程中物料衡算和热量衡算。另外对废料的处理提出了解决方案，最后对车间管理和生产组织、工程经济概算进行了规划。It also explicitly calculated the types of equipment such as the extruder, explained the common faults of the extruder, and calculated the material balance and heat balance in the process. It further proposed the solution for waste disposal, and finally made a plan for workshop management, production organization and project estimate.关键词：PS，XPS，挤出发泡，工艺流程，设计Keywords: PS, XPS, extrusion foaming, process, design

采用几台挤出机,同时供应几种塑料,再通过共用机头挤出，形成一个整体的复合制品。例如用A、B、C三种塑料共挤出，可生产各种复合薄膜、复合片材、板材、型材和管材。胶料过滤在制造薄壁橡胶制品时，为了防止制品发生漏气、漏水，胶料不能含有杂质，一般在加入硫化剂前用挤出机过滤胶料，即在机头处放置一层或多层滤网，以滤去塑化物料中杂质。轮胎胎面和内胎制造 胎面分整体挤出和分层挤出。整体挤出可用一台挤出机将一种胶料经扁平口模挤出；也可用两种胶料（胎冠料和胎侧料）两台挤出机共挤出，在共挤出机头内结合成一个整体胎面。分层挤出则用两台挤出机分别将两种胶料挤成胎冠和胎侧，再在运输带上进行热贴合，并经多圆盘活络辊压为整体。内胎挤出和管子挤出相似，胎筒挤成后，经切断，再接头成型。熔体纺丝一些粘度大的树脂在熔体纺丝时，常用挤出机来熔融物料。熔好的物料直接经过过滤器进入喷丝头，或用喷丝泵打入喷丝头。