求翻译：实型铸造生产中采用聚苯乙烯泡塑模样应用呋哺树脂自硬砂造型。当金属液浇入铸型时，泡沫塑料模样在高温金属液作用下迅速气化，燃烧而消失是什么意思？

Full mold casting application used in the production of polystyrene foam plastic like furan resin sand molding. When the molten metal is poured into molds, gasification of foam in under the effect of high temperature liquid metal fast burning disappear