A new coremaking process was described, using a sodium polyacrylate as basic binder which is cured directly by gassing with CO2,without solid powder curing agent.

• 介绍了制芯用新型CO2-树脂粘结剂，该粘结剂以聚丙烯酸钠为基，吹CO2气直接硬化，不需使用粉状固化剂。