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该技术的关键,是用组织均一的专用聚氨酯制作发泡聚氨酯模型件。由于发泡聚氨酯不仪具有比木材易切削、易制作的特点,还具有与金相材料相近似的机械性能。因此,只要用该技术对铸件模型件进行应力分析和机械性能试验,就能够掌握真实铸件的各种特性。该技术较平面图低设计法不仅设计准确,而且效率高,成本低。目前已在汽车铸件等设计方面取得了显著的实用效果。此外,它还为汽车、建筑机械和机器制造等部门的铸造技术开发,提供了从模型件制作到铸件设计的库存管理程序与控制技术。
The key to this technique is to make a foamed polyurethane model piece with a uniform polyurethane. As the polyurethane foam is not less than wood cutting easy to manufacture, but also has similar properties and metallurgical materials mechanical properties. Therefore, as long as the use of the technology of casting parts for stress analysis and mechanical properties test, we can grasp the true castings of various characteristics. The technology is less than the plan design method is not only accurate design, and high efficiency, low cost. Has made significant practical effects in the design of automobile castings. In addition, it provides inventory management procedures and control techniques for the casting technology development from the modeling of parts to the design of castings for foundry technology in the automotive, construction machinery and machine building industries.