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利用自行研制的树脂砂开裂时间测定仪,测量的热开裂时间能准确、可靠地评价树脂砂的热开裂性能和铸件飞翅缺陷倾向。研究了几种树脂砂的热开裂性能及其影响因素,实验测量的预示与生产浇注结果相一致。
Using the self-developed resin sand cracking time tester, the measured thermal cracking time can accurately and reliably evaluate the thermal cracking resistance of resin sand and casting fin defects. The thermal cracking properties of several resin sand and its influencing factors were studied. The predictions of the experimental measurements are in accordance with the production pouring results.