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摘要： 本课题是年产50万套汽车用大型注塑件的车间工艺设计。汽车产业的发展不断发展使得车用大型注塑件的成为不可或缺的一部分，本次车间主要产品包括汽车保险杠、仪表盘。工艺设计所采用的工艺流程是注塑成型。并说明所选用的基料为改性聚丙烯，在加工汽车保险杠、仪表盘时，采用聚丙烯树脂混合各种助剂注入模具来完成制作，从而得到具有优良的刚性，可塑性强的制品。具体工艺流程包括成型前准备、成型过程、制品后处理三个阶段。基料及助剂经干燥混合后加入到注塑机中，物料经过注塑机注射成型，最后进行后处理，最终得到保险杠及仪表盘成品。设计内容主要包括概述、厂址选择、工艺流程、配方设计、设备选型、物料衡算以及车间布局设计（CAD）。其中工艺流程为重点，设计主要成果包括：设计说明书，车间布局图。30859
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毕业论文关键词： 保险杠；仪表盘；改性聚丙烯（PP）；注塑成型；车间布局。
Annual output of 500000 sets of automobile large plastic parts molding workshop process design
Abstract: This topic is the workshop process design of 500000 sets of large injection molding parts for automobiles. The development of the automotive industry continues to develop a large injection molding part of the vehicle, Workshop main products include automotive bumper, dashboard. The process flow is injection molding. And explain the basic material of modified polypropylene chooses， in processing automobile bumper, dashboard, with polypropylene resin mixed with various additives into the mold to make and is thus obtained with excellent rigidity strong plasticity products. The specific technological process includes three stages: preparation, molding process, product modification inspection. Material and auxiliary agent is added into the injection molding machine after drying and mixing, and the material is injected into the injection molding machine, and the final post-processing is finished, and the bumper and the instrument panel are eventually finished. Design content mainly includes the overview, process flow and formulation design, equipment selection, material balance calculation and workshop layout design (CAD). The main results are as follows: design instruction, workshop layout plan.
Key Words: Bumper; dashboard; modified polypropylene (PP); injection molding; workshop layout
目录
摘要 i
Abstract i
目录 ii
1 概述 1
1.1 课题的目的和意义 1
1.2 国内外研究现状、水平和发展趋势 1
1.2.1 国内外研究现状与水平 1
1.2.2 发展趋势 2
1.3 本课题重难点 2
2 厂址选择 4
2.1 基本原则 4
2.2 厂址说明 4
3 工艺流程 9
3.1 保险杠注塑成型 10
3.1.1 成型准备 10
3.1.2 成型过程 13
3.1.3 制品后处理 16
3.2 仪表盘低压注塑成型 18
4 配方设计 21
4.1 汽车保险杠 21
4.1.1 原料基料 21
4.1.2 增韧剂 22
4.1.3 交联剂 23
4.1.4 填料滑石粉 23