消失模铸造件的凝固特性如下：
The solidification characteristics of lost foam casting parts are as follows:
一、消失模机床铸件的冷却凝固速度慢，慢于普通砂型铸造。
1、 The cooling and solidification speed of lost foam machine tool castings is slower than that of ordinary sand mold casting.
二、消失模铸造在负压下浇注，铸型钢性好，浇注铸铁件不会出现涨体，铸件自补缩能力不错，减少铸件的出现缩孔倾向。
2、 Lost foam casting is poured under negative pressure, with good mold steel properties and no swelling during casting of cast iron. The casting has good self feeding ability and reduces the tendency of shrinkage cavities in the casting.
三、消失模铸造机床铸件冷却速度慢，铸件受铸型阻力小，小于粘土砂铸型铸造，所以铸件形成应力小，热烈倾向小。
3、 The cooling speed of the lost foam casting machine tool castings is slow, and the resistance of the castings to the mold is small, which is smaller than that of the clay sand mold casting. Therefore, the formation stress of the castings is small, and the tendency to heat is small.
消失模铸造件用涂料的基本成分包括不怕火材料、载体、粘结剂、悬浮剂、表面活性剂、去沫剂等不怕火材料是涂料的骨架，确定其不怕热性、强度及性能等从而避免粘砂、毛刺等缺陷纤维 驱鸟设备 保定通风管道 塑料土工格栅 检查井模具 流水槽模具 锻造厂家 华尔街铜牛、获得光滑表面。不怕火材料一般是陶瓷粉末，种类选择取决于浇注金属种类、浇注温度、零件厚度、造型砂的性能等。为达到佳效果，可以选择同一种不怕火材料但不同颗粒大小的粉末混用、或几种不同种类不同颗粒形状和大小的陶瓷粉末混用。
The basic components of coatings for lost foam casting parts include fire-resistant materials, carriers, binders, suspensions, surfactants, defoamers, and other fire-resistant materials. These materials are the backbone of the coating, and their heat resistance, strength, and performance are determined to avoid defects such as sand sticking and burrs, and to obtain a smooth surface. Fire resistant materials are generally ceramic powders, and the choice of type depends on the type of pouring metal, pouring temperature, part thickness, and the performance of molding sand. To achieve optimal results, you can choose to mix powders of the same fire-resistant material with different particle sizes, or several different types of ceramic powders with different particle shapes and sizes.
消失模铸造件铸造过程中要用到各种铸造原材料，其中重要的为模型材料，铸造涂料和干砂。模型材料通常称之为珠粒，铸造上采用的珠粒一般分为两种类型，即聚苯乙烯珠粒和聚甲基丙烯酸甲酯珠粒，二者都属于高分子材料。另外还有一种PS+PMMA的聚合物。
Various casting raw materials are used in the process of lost foam casting, among which the important ones are model materials, casting coatings, and dry sand. Model materials are usually called beads. The beads used in casting are generally divided into two types, namely polystyrene beads and polymethyl methacrylate beads, both of which belong to polymer materials. There is also a PS+PMMA polymer.
