摘要 铸造就是通过熔炼金属、浇注等步骤来制造出所需的金属零件毛坯。在整个制造业中用铸造的方法所生产的毛坯零件，在数量和吨位上迄今仍是最多的。而铸造工艺就是铸造生产的核心，也是能否生产优质铸件的关键所在。 本次进行设计的零件为熔胶座移动板，采用重力铸造，呋喃树脂自硬砂造型。用CREO创建了零件的实体模型，采用手工造型造芯的生产方法，参考零件技术要求，工作条件等因素，计算确定了零件的各项工艺参数，确定了铸件的浇铸位置和分型面还有浇铸系统各组元的截面尺寸以及补缩系统。 在以上工艺的前提下，应用Z-CAST软件对整个系统进行剖分网格，进行了零件充型及凝固过程的数值模拟，优化铸造工艺，消除或减少了铸造缺陷，最后确定最终的铸造工艺方案。 关键词：铸造工艺设计，球墨铸铁件，呋喃树脂自硬砂，铸造模拟 abstract Casti
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n 目录 摘要I abstract II 目录III 1.绪论1 1.1课题背景及目的1 1.2铸造的发展现状和发展趋势1 1.2.1国外现状与发展趋势1 1.2.2我国铸造业的现状与发展趋势2 1.3小结3 2.零件的技术要求及工艺性分析5 2.1零件的尺寸及要求5 2.1.1零件的尺寸5 2.2.2零件技术要求分析5 2.2零件的结构分析6 2.2.1零件的最小壁厚分析6 2.2.2零件各壁间的过渡6 2.3零件的预留尺寸7 2.3.1机械加工余量7 2.3.2起模斜度8 2.3.3铸造收缩率8 2.4浇注系统的设计9 2.4.1浇注位置9 2.4.2分型面的确定10 2.4.3浇注系统的类型和结构11 2.4.4浇注系统中各结构尺寸11 2.4.5补缩系统13 2.5砂芯15 2.5.1砂芯的设计15 2.5.2砂芯的组装16 2.6小结16 3.铸造工艺模拟仿真17 3.1铸造工艺的模拟17 3.1.1初方案铸造充型分析17 3.1.2铸件的温度场分析18 3.2铸造工艺的缺陷分析21 3.3小结22 4.工艺优化23 4.1优化方案一初次改变浇注位置23 4.1.1优化方案一温度场分析23 4.1.2优化方案一的缺陷分析25 4.2方案一的初步改进25 4.2.1改进后的铸件模拟分析26 4.2.2改进后的模拟缺陷分析27 4.2.3再次加大冒口和冷铁尺寸28 4.3优化二-再次改变浇注位置29 4.3.1方案二铸造模拟分析30 4.3.2改变冒口高度并增加冒口31 4.3.3再次增大冒口31 4.3.4增大冒口后的温度场32 4.3.5增大冒口后铸件缺陷分析33 4.3.6铸件充型模拟33 4.3.7铸件的工艺出品率34 4.4小结34 总结35 参考文献36 致谢37 外文文献38 外文文献翻译48