涡轮增压器壳体的铸造工艺设计
摘要：蜗壳是从进气端截面积逐渐减小，高温废气通过通道，大部分热能转化为动能，推动涡轮叶片转动，再带动同轴的压气机叶轮的旋转。在压缩机端，新鲜的空气通过压缩机，动能，再经过压缩机壳体转换压力的通道，空气形成压力，直接或通过中冷器进入发动机，发动机提供进气。
关键词：壳体；铸造工艺；设计
The casting process design of turbocharger shell
Abstract: the volute is from the air inlet to end sectional area decreases gradually, the high-temperature exhaust gas through the channel, and most of the heat energy conversion to kinetic energy, and promote the turbine blades, and then drive the coaxial air compressor impeller rotation. At the end of the compressor, fresh air through the compressor, kinetic energy, and then after the passage of the compressor shell conversion pressure can, formation pressure of air, directly or through the intercooler into the engine, engine provide intake.
Key words: shell; casting process; design
目录
第一章引 言....................................................................................................................................7
1.1涡轮增压器壳体..........................................................................................................................7
1.2涡轮增压器壳体的作用..............................................................................................................7
1.3我国铸造行业的历史..................................................................................................................8
第二章 壳体的铸造工艺分析..........................................................................................................9
2.1涡轮增压器壳体的结构图..........................................................................................................9
2.2涡轮增压器壳体的三维图........................................................................................................10
2.3铸造工艺流程图........................................................................................................................11
2.4铸件结构的分析与选材............................................................................................................12
2.5造型与造芯的选择....................................................................................................................13
第三章壳体铸造工艺拟定方案....................................................................................................17
3.1找出分型方案并分析确定最佳分析方案................................................................................17
3.2浇注位置确定与造型方法........................................................................................................18
3.3砂箱大小及砂箱中数目的确定................................................................................................19
第四章铸造工艺参数的确定........................................................................................................20
4.1铸件的铸造收缩率....................................................................................................................20
4.2切削的加工余量及起模斜度....................................................................................................21
4.3最小铸造孔................................................................................................................................23
4.4铸造圆角....................................................................................................................................23
4.5非加工壁厚的负余量................................................................................................................23
4.6型芯与型芯头............................................................................................................................25
第五章浇注系统设置....................................................................................................................26
5.1浇口杯及直浇道........................................................................................................................26
5.2横浇道及内浇道........................................................................................................................26
5.3横浇道及内浇道尺寸................................................................................................................26
第六章铸造工艺图绘制................................................................................................................31
第七章壳体铸件图的绘制............................................................................................................32
第八章铸造工艺卡的拟定............................................................................................................33
结论..................................................................................................................................................34
参考文献 ........................................................................................................................................35
参考文献
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