压铸产品基本工艺流程及影响铝合金压铸模寿命的因素

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1、压铸产品基本工艺流程及影响铝合金压铸模寿命的因素目录绪论·····························································1第一章概述····················································21.1压铸工艺概述···············································21.11压铸工艺原理···············································31.12压铸工艺的特点············

2、·································51.13压铸工艺的应用范围·········································6第二章压铸合金···············································7182.1压铸合金···················································72.11对压铸合金的基本要求······································82.12各类压铸铝合金·················

3、····························9第三章压铸件的结构设计······································133.1功能结构设计···············································133.11压铸件的尺寸精度及加工余量································143.12压铸件的表面质量··········································15第四章压铸工艺··································

4、············164.1压力·····················································164.11压射压力18··················································164.12胀模力···················································184.2速度·····················································194.21压射速度······················

5、····························194.22内浇口速度················································204.23内浇口速度与压射速度和压力的关系··························214.3温度·····················································224.31合金浇注温度··············································224.32内浇口速度对合金温度的影响··············

6、··················234.33压铸模的温度··············································244.4时间18·····················································244.41填充时间和增压建压时间····································244.42持压时间和留模时间········································254.5压铸涂料·······························

7、··················264.51压铸涂料的作用和压铸涂料的要求····························264.52压铸涂料的使用············································27第五章影响铝合金压铸模寿命的因素····························285.1模具结构设计的影响·········································285.2热处理工艺的影响···········································295