盲人电子助听器注射模具cad设计 毕业论文(注塑模)

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1、密级：科学技术学院NANCHANGUNIVERSITYCOLLEGEOFSCIENCEANDTECHNOLOGY学士学位论文THESISOFBACHELOR（2009—2013年）题目:盲人电子助听器注射模具CAD设学科部：理工学科部专业：材料成型及其控制工程班级：09材料（2）班学号：7013309048学生姓名：指导教师：起讫日期：2012.12.19—2013.5.6南昌大学科学技术学院学士学位论文原创性申明本人郑重申明：所呈交的论文是本人在导师的指导下独立进行研究所取得的研究成果。除了文中特别加以标注引

2、用的内容外，本论文不包含任何其他个人或集体已经发表或撰写的成果作品。对本文的研究作出重要贡献的个人和集体，均已在文中以明确方式表明。本人完全意识到本申明的法律后果由本人承担。作者签名：宁北京日期：2013年05月25日学位论文版权使用授权书本学位论文作者完全了解学校有关保留、使用学位论文的规定，同意学校保留并向国家有关部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权南昌大学可以将本论文的全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。本学位论文属于

3、保密□，在年解密后适用本授权书。不保密□。（请在以上相应方框内打“√”）作者签名：宁北京日期：宁北京导师签名：日期：目录摘要·······································································ⅠAbstract·····································································Ⅱ第一章绪论·········································

4、························11.1选题的依据及义·····················································11.11选题依据························································11.12论文选题义······················································11.2国内外研究现状及发展趋势·························

5、··················1第二章塑件的工艺分析·······················································42.1盲人助听器外壳分析···············································42.1.1制件分析····················································42.1.2聚苯乙烯（PS）的性能分析·································

6、···52.2分型面位置的确定·················································82.3型腔数量和排列方式的确定········································8III2.4注射机型号的确定·················································9第三章浇注系统的设计·······················································113.1浇注系

7、统的设计原则···············································113.2主流道的设计·····················································113.3分流道的设计····················································123.4浇口的设计·······················································143.4.1侧浇口尺寸的

8、确定···········································153.4.2侧浇口剪切速率的校核·······································153.5冷料穴的设计及计算···················································15第四章成型零件的结构设计及计算···········