*****毕业设计（论文）题目:密封盖塑件塑料注射模具设计姓名*********系（部）＿**********＿专业＿模具设计＿＿指导教师**********2008年5月26日********学院论文-1-目录目录..............................................................1摘要.............................................................3Abstract...........................................................4第一章绪论.....................................................51.1选题背景及意义...............................................51.2塑料模具的种类和应用........................................61.2.1塑料模具的种类.........................................61.2.2塑料模具的应用.........................................61.3本次设计塑料注射模具的主要工作内容..........................7第二章塑料注射模具的设计步骤和结构组成...........................82.1塑料注射模具的设计要求......................................82.2塑料注射模具的设计步骤及内容................................82.3塑料注射模具的结构组成和作用................................9第三章密封盖塑料件..............................................113.1塑料件的结构和特点.........................................113.2塑料件的材料...............................................123.2.1常用塑料及工艺参数.....................................123.2.2工程塑料（ABS）的特性及注射工艺性.....................123.3密封盖塑料件的参数........................................133.2.1塑件的质量............................................133.2.2塑件的投影面积........................................133.2.3塑件的成型工艺卡......................................14第四章注射机的选用...............................................154.1选用注射机的方法和原则.....................................154.2注射机的选用...............................................15********学院论文-2-4.3注射机的参数校核...........................................15第五章塑料注射模具设计...........................................175.1型腔数目和分布.............................................175.2分型面的选择...............................................195.3型芯和型腔.................................................205.3.1型芯和型腔的结构.........................................205.3.2型芯和型腔的尺寸......................................215.4浇注系统.........