消失模铸造作为一种先进的铸造方法，其优点将会被越来越多的人所认识。发展消失模铸造技术，一般是基于以下几方面的考虑。首先它适合于制造形状复杂的铸件，并可显著地减少铸件壁厚，以减少机加工余量。其次是由于采用不加水、粘接剂和附加物的干砂造型，并且是在负压下浇注 Lost foam casting as an advanced casting method, the advantages of which will be recognized by more and more people. The development of lost foam casting technology is generally based on the following considerations. First, it is suitable for the manufacture of complex-shaped castings and significantly reduces the wall thickness of castings to reduce machining allowances. The second is due to the use of dry sand without water, adhesives and attachments modeling, and is cast under negative pressure