热法覆膜砂用酚醛树脂的流变性研究

Research on Rheological Property of Phenol-Formaldehyde Resin for Hot Process Coated Sand

研究了酚醛树脂熔融状态的流变特性及对其影响因素，分析了树脂流变性对覆膜砂性能的影响，为正确选择热法覆膜树脂及制定覆膜工艺提供依据。

This is a study of rheological property of phenol-formaldehyde resin in melted status and influence factors as well effect of such property on performance of resin-coated sand hence correct criteria of stlection of proper resin and its coated process.