浇注时从型芯的粘结剂中释放出各种气体 ,这在过去的文献中已做了许多报道。为进一步了解释放气体的数量和特性 ,必须了解其中哪些气体可被型芯的冷却部分所吸收。人们早已知道热塑性酚醛树脂的热解产物及其热解的动力学 ,但是大多数热解产物都属于对空气造成污染的含苯的芳香 Various gases are released from the core binder during pouring, many of which have been reported in the literature. To further understand the amount and nature of gas released, it must be understood which of these gases can be absorbed by the cooling portion of the core. It has long been known that pyrolyzates of thermoplastics and their kinetics of pyrolysis, but most pyrolyzed products are benzene-containing aromatics that pollute the air