①When using polystyrene foam in white mold manufacture, its density is very small, and the labor intensity of the operators is low during the operation. The foam material will not pollute the environment and damage the human body at normal temperature. It is also easy to achieve cleaner production.
② Compared with the traditional, the process does not need the production of core, which greatly simplifies the mold making procedure. The post-treatment process of sand during casting is also simple, and the handling volume of white mold and yellow mold between processes is also small, which greatly reduces the labor intensity. In the process of white mold processing and transportation, it is easy to realize mechanized and automatic production.
③ Due to the use of dry sand modeling, it has good fluidity, which can not only eliminate the sand mixing procedures and equipment, but also greatly reduce the generation of noise and dust, so as to save the old sand recovery equipment and processes.
④ The lost foam casting method does not use the production of the core. The precision of the blank casting produced by this method is relatively high, and the refractory coating on the outer surface of the blank is easy to fall off. In this way, the cleaning in the later stage of blank production is simple, and the labor intensity of operators can be reduced.
⑤ Carbon monoxide, carbon dioxide and other waste gases produced in the production process of EPC process are relatively small. During pouring, the white mold material is thermally decomposed and gasified under the action of high temperature of molten metal, resulting in a small amount of waste gases such as carbon monoxide and dioxide, which can be effectively treated in the process of vacuum pumping.