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提出利用断裂力学理论评价树脂砂的强韧性,引入高温当量韧度的概念.利用自行研制的树脂砂高温性能试验仪研究了不同树脂砂的高温当量韧度及其影响因素.
The concept of fracture toughness was used to evaluate the toughness of resin sand and the introduction of high temperature equivalent toughness.The high temperature equivalent toughness and its influencing factors of different resin sand were studied by the resin sand high temperature performance tester developed by ourselves.