本文用自行设计制造的试验装置研究了溶剂量、砂子粒度及通催化气时间对冷芯盒法型芯强度的影响。结果表明:随着粘结剂中溶剂量的增加,型芯强度逐渐增高,达一定值后又逐渐下降在粘结剂量一定的情况下,型芯强度随着砂子粒度的增大而逐渐增高,达一定值后又逐渐下降;型芯终强度则随通催化气时间的延长而降低。 In this paper, using self-designed test device to study the impact of solvent volume, sand particle size and catalyst time on the strength of the cold box core. The results show that with the increase of the amount of solvent in the binder, the strength of the core increases gradually, and then decreases gradually. When the amount of binder is constant, the strength of the core increases with the increase of sand particle size. Up to a certain value and then gradually decreased; core strength with the extension of the catalyst time decreases.