QT400-18AL轮毂铸造工艺的设计 摘要：轮毂作为风力发电系统中的重要部件之一，对其铸件质量要求较高。本文通过对其铸造工艺进行分析从而改进轮毂铸件的品质。
关键词: 轮毂；铸造工艺；炉前控制 目 录
1 QT400-18AL轮毂的工艺设计········································1
1.1 QT400-18AL轮毂材料的选择·······································1
1.2 工艺设计·····················································1
2 QT400-18AL轮毂造型方法的确定····································2
2.1造型方法的选择················································2
2.2型芯的设计···················································3
3 铸造工艺方案的确定···············································3
3.1 铸造分型面的选择··············································3
3.2 浇注位置的选择················································4
3.3吃砂量的确定··················································4
4 铸造工艺设计参数的确定············································4
4.1 收缩率·······················································5
4.2机械加工余量··················································5
4.3铸件尺寸公差·················································· 6
4.4起模斜度····················································· 6
4.5最小铸出孔和槽················································ 7
4.6分型负数····················································· 7
5浇注系统的设置··················································· 7
5.1直浇道······················································· 8
5.2横浇道······················································· 8
5.3内浇道·························································9
5.4浇口杯·························································9
6砂芯设计··························································9
6.1 砂芯设置的原则··················································9
6.2 砂芯的固定和定位················································9
6.3 砂芯的排气·····················································9
7冷铁 ····························································10
8出气孔··························································10
9冒口设计·······················································11
9.1冒口设计原则···············································11
9.2冒口位置的选择原则··········································11
10 QT400-18轮毂的工艺说明··································12
11球化孕育剂的选择和炉前控制··································12
11.1球化剂的选择··············································12
11.2孕育剂选择················································12
11.3炉前控制··················································12
12 开箱时间······················································13
结论·····························································14
参考文献···················································· 参考文献：
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